[REST] refactored rest responses to Either RESTError a

This way we can have a handle of the errors in the high-level
components. Before they were implicitly discarded.

src/Gargantext/Components/App/Data.purs

 module Gargantext.Components.App.Data (App, Boxes, emptyApp) where
 
-import Data.Set as Set
 import Data.Maybe (Maybe(..))
+import Data.Set as Set
 import Toestand as T
 
 import Gargantext.Prelude
@@ -15,11 +15,12 @@ import Gargantext.Routes (AppRoute(Home))
 import Gargantext.Sessions as Sessions
 import Gargantext.Sessions (Session, Sessions)
 import Gargantext.Sessions.Types (OpenNodes(..))
-import Gargantext.Types (Handed(RightHanded), SidePanelState(..))
+import Gargantext.Types (FrontendError, Handed(RightHanded), SidePanelState(..))
 import Gargantext.Utils.Toestand as T2
 
 type App =
   { backend        :: Maybe Backend
+  , errors         :: Array FrontendError
   , forestOpen     :: OpenNodes
   , graphVersion   :: T2.Reload
   , handed         :: Handed
@@ -42,6 +43,7 @@ type App =
 emptyApp :: App
 emptyApp =
   { backend        : Nothing
+  , errors         : []
   , forestOpen     : OpenNodes $ Set.empty
   , graphVersion   : T2.newReload
   , handed         : RightHanded
@@ -63,6 +65,7 @@ emptyApp =
 
 type Boxes =
   { backend        :: T.Box (Maybe Backend)
+  , errors         :: T.Box (Array FrontendError)
   , forestOpen     :: T.Box OpenNodes
   , graphVersion   :: T2.ReloadS
   , handed         :: T.Box Handed

src/Gargantext/Components/Category.purs

 -- TODO: this module should be replaced by FacetsTable
 module Gargantext.Components.Category where
 
+import Gargantext.Prelude
+
 import Data.Array as A
+import Data.Either (Either)
 import Data.Generic.Rep (class Generic)
 import Data.Map as Map
 import Data.Maybe (Maybe(..))
@@ -10,16 +13,13 @@ import Reactix as R
 import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
 
-import Gargantext.Prelude
-
-import Gargantext.Components.Category.Types
-  ( Category(..), Star(..), cat2score, categories, clickAgain, star2score, stars )
-import Gargantext.Components.DocsTable.Types
-  ( DocumentsView(..), LocalCategories, LocalUserScore )
-import Gargantext.Utils.Reactix as R2
+import Gargantext.Components.Category.Types (Category(..), Star(..), cat2score, categories, clickAgain, star2score, stars)
+import Gargantext.Components.DocsTable.Types (DocumentsView(..), LocalCategories, LocalUserScore)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(NodeAPI))
 import Gargantext.Sessions (Session, put)
 import Gargantext.Types (NodeID, NodeType(..))
+import Gargantext.Utils.Reactix as R2
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Category"
@@ -63,7 +63,7 @@ instance JSON.WriteForeign RatingQuery where
   writeImpl (RatingQuery post) = JSON.writeImpl { ntc_nodesId: post.nodeIds
                                                 , ntc_category: post.rating }
 
-putRating :: Session -> Int -> RatingQuery -> Aff (Array Int)
+putRating :: Session -> Int -> RatingQuery -> Aff (Either RESTError (Array Int))
 putRating session nodeId = put session $ ratingRoute where
   ratingRoute = NodeAPI Node (Just nodeId) "category"
 
@@ -147,5 +147,5 @@ instance JSON.WriteForeign CategoryQuery where
 categoryRoute :: Int -> SessionRoute
 categoryRoute nodeId = NodeAPI Node (Just nodeId) "category"
 
-putCategories :: Session -> Int -> CategoryQuery -> Aff (Array Int)
+putCategories :: Session -> Int -> CategoryQuery -> Aff (Either RESTError (Array Int))
 putCategories session nodeId = put session $ categoryRoute nodeId

src/Gargantext/Components/DocsTable.purs

 -- TODO: this module should be replaced by FacetsTable
 module Gargantext.Components.DocsTable where
 
+import Gargantext.Prelude
+import Prelude
+
+import Control.Monad.Error.Class (throwError)
 import DOM.Simple.Console (log2)
 import DOM.Simple.Event as DE
 import Data.Argonaut (class EncodeJson, jsonEmptyObject, (:=), (~>))
 import Data.Array as A
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
 import Data.Lens ((^.))
 import Data.Lens.At (at)
@@ -19,7 +24,7 @@ import Data.String as Str
 import Data.Symbol (SProxy(..))
 import Data.Tuple (Tuple(..))
 import Effect (Effect)
-import Effect.Aff (Aff, launchAff_)
+import Effect.Aff (Aff, error, launchAff_)
 import Effect.Class (liftEffect)
 import Gargantext.Components.Category (rating)
 import Gargantext.Components.Category.Types (Star(..))
@@ -28,9 +33,9 @@ import Gargantext.Components.Nodes.Lists.Types as NT
 import Gargantext.Components.Nodes.Texts.Types as TextsT
 import Gargantext.Components.Table as TT
 import Gargantext.Components.Table.Types as TT
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (Frontends, url)
 import Gargantext.Hooks.Loader (useLoader, useLoaderWithCacheAPI, HashedResponse(..))
-import Gargantext.Prelude
 import Gargantext.Prelude (class Ord, Unit, bind, const, discard, identity, mempty, otherwise, pure, show, unit, ($), (/=), (<$>), (<<<), (<>), (==))
 import Gargantext.Routes (SessionRoute(NodeAPI))
 import Gargantext.Routes as Routes
@@ -41,7 +46,6 @@ import Gargantext.Utils.CacheAPI as GUC
 import Gargantext.Utils.QueryString (joinQueryStrings, mQueryParam, mQueryParamS, queryParam, queryParamS)
 import Gargantext.Utils.Reactix as R2
 import Gargantext.Utils.Toestand as T2
-import Prelude
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
@@ -221,9 +225,9 @@ type PageParams = {
   , yearFilter  :: Maybe Year
   }
 
-getPageHash :: Session -> PageParams -> Aff String
-getPageHash session { nodeId, tabType } = do
-  (get session $ tableHashRoute nodeId tabType) :: Aff String
+getPageHash :: Session -> PageParams -> Aff (Either RESTError String)
+getPageHash session { nodeId, tabType } =
+  get session $ tableHashRoute nodeId tabType
 
 convOrderBy :: Maybe (TT.OrderByDirection TT.ColumnName) -> Maybe OrderBy
 convOrderBy (Just (TT.ASC  (TT.ColumnName "Date")))  = Just DateAsc
@@ -261,7 +265,6 @@ filterDocsByYear year docs = A.filter filterFunc docs
 
 pageLayout :: R2.Component PageLayoutProps
 pageLayout = R.createElement pageLayoutCpt
-
 pageLayoutCpt :: R.Component PageLayoutProps
 pageLayoutCpt = here.component "pageLayout" cpt where
   cpt props@{ cacheState
@@ -318,12 +321,12 @@ pageLayoutCpt = here.component "pageLayout" cpt where
         paramsS' <- T.useLive T.unequal paramsS
         let loader p = do
               let route = tableRouteWithPage (p { params = paramsS', query = query })
-              res <- get session $ route
+              eRes <- get session $ route
               liftEffect $ do
                 here.log2 "table route" route
-                here.log2 "table res" res
-              pure $ handleResponse res
-            render (Tuple count documents) = pagePaintRaw { documents
+                here.log2 "table res" eRes
+              pure $ handleResponse <$> eRes
+        let render (Tuple count documents) = pagePaintRaw { documents
                                                           , layout: props { params = paramsS'
                                                                           , totalRecords = count }
                                                           , localCategories
@@ -562,7 +565,7 @@ tableRouteWithPage { listId, nodeId, params: { limit, offset, orderBy, searchTyp
     q   = queryParamS "query" query
     y   = mQueryParam "year" yearFilter
 
-deleteAllDocuments :: Session -> Int -> Aff (Array Int)
+deleteAllDocuments :: Session -> Int -> Aff (Either RESTError (Array Int))
 deleteAllDocuments session = delete session <<< documentsRoute
 
 -- TODO: not optimal but Data.Set lacks some function (Set.alter)

src/Gargantext/Components/FacetsTable.purs

@@ -3,16 +3,18 @@
 --       has not been ported to this module yet.
 module Gargantext.Components.FacetsTable where
 
-import Data.Generic.Rep (class Generic)
+import Gargantext.Prelude
+
+import Data.Either (Either(..))
 import Data.Eq.Generic (genericEq)
-import Data.Show.Generic (genericShow)
+import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..), fromMaybe)
 import Data.Newtype (class Newtype)
 import Data.Sequence (Seq)
 import Data.Sequence as Seq
 import Data.Set (Set)
 import Data.Set as Set
-import Data.Tuple (fst, snd)
+import Data.Show.Generic (genericShow)
 import Data.Tuple.Nested ((/\))
 import Effect (Effect)
 import Effect.Aff (Aff, launchAff_)
@@ -21,16 +23,12 @@ import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
 import Toestand as T
 
-import Gargantext.Prelude
-
 import Gargantext.Components.Category (CategoryQuery(..), putCategories)
 import Gargantext.Components.Category.Types (Category(..), decodeCategory, favCategory)
-import Gargantext.Components.Search
-  ( Contact(..), Document(..), HyperdataRowContact(..), HyperdataRowDocument(..)
-  , SearchQuery, SearchResult(..), SearchResultTypes(..) )
-
+import Gargantext.Components.Search (Contact(..), Document(..), HyperdataRowContact(..), HyperdataRowDocument(..), SearchQuery, SearchResult(..), SearchResultTypes(..))
 import Gargantext.Components.Table as T
 import Gargantext.Components.Table.Types as T
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (url, Frontends)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(Search, NodeAPI))
@@ -153,12 +151,6 @@ docViewCpt = here.component "docView" cpt
             ] 
     -}      ] 
         ]
-      where
-        buttonStyle = { backgroundColor: "peru"
-                      , border: "white"
-                      , color: "white"
-                      , float: "right"
-                      , padding: "9px" }
 
 performDeletions :: Session -> Int -> T.Box Deletions -> Deletions -> Effect Unit
 performDeletions session nodeId deletions deletions' = do
@@ -221,8 +213,8 @@ type PagePath = { nodeId :: Int
 initialPagePath :: {session :: Session, nodeId :: Int, listId :: Int, query :: SearchQuery} -> PagePath
 initialPagePath {session, nodeId, listId, query} = {session, nodeId, listId, query, params: T.initialParams}
 
-loadPage :: PagePath -> Aff Rows
-loadPage {session, nodeId, listId, query, params: {limit, offset, orderBy, searchType}} = do
+loadPage :: PagePath -> Aff (Either RESTError Rows)
+loadPage { session, nodeId, listId, query, params: {limit, offset, orderBy }} = do
   let
     convOrderBy (T.ASC  (T.ColumnName "Date")) = DateAsc
     convOrderBy (T.DESC (T.ColumnName "Date")) = DateDesc
@@ -235,9 +227,12 @@ loadPage {session, nodeId, listId, query, params: {limit, offset, orderBy, searc
     p = Search { listId, offset, limit, orderBy: convOrderBy <$> orderBy } (Just nodeId)
 
   --SearchResult {result} <- post session p $ SearchQuery {query: concat query, expected:searchType}
-  SearchResult {result} <- post session p query
+  eSearchResult <- post session p query
+  case eSearchResult of
+    Left err -> pure $ Left err
+    Right (SearchResult {result}) ->
       -- $ SearchQuery {query: concat query, expected: SearchDoc}
-  pure $ case result of
+      pure $ Right $ case result of
               SearchResultDoc     {docs}     -> Docs     {docs: doc2view     <$> Seq.fromFoldable docs}
               SearchResultContact {contacts} -> Contacts {contacts: contact2view <$> Seq.fromFoldable contacts}
               errMessage                     -> Docs     {docs: Seq.fromFoldable [err2view errMessage]} -- TODO better error view
@@ -417,7 +412,7 @@ derive instance Generic DeleteDocumentQuery _
 derive instance Newtype DeleteDocumentQuery _
 derive newtype instance JSON.WriteForeign DeleteDocumentQuery
 
-deleteDocuments :: Session -> Int -> DeleteDocumentQuery -> Aff (Array Int)
+deleteDocuments :: Session -> Int -> DeleteDocumentQuery -> Aff (Either RESTError (Array Int))
 deleteDocuments session nodeId =
   deleteWithBody session $ NodeAPI Node (Just nodeId) "documents"
 

src/Gargantext/Components/FolderView.purs

 module Gargantext.Components.FolderView where
 
-import DOM.Simple.Console (log, log2)
+import Control.Monad.Error.Class (throwError)
 import Data.Array as A
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..), fromMaybe)
 import Data.Nullable (null)
 import Data.Traversable (traverse_)
+import DOM.Simple.Console (log, log2)
 import Effect (Effect)
-import Effect.Aff (Aff)
+import Effect.Aff (Aff, error)
 import Effect.Class (liftEffect)
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Record as Record
+import Toestand as T
+
 import Gargantext.AsyncTasks as GAT
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Action.Add (AddNodeValue(..), addNode)
@@ -23,6 +30,7 @@ import Gargantext.Components.Forest.Tree.Node.Action.Upload (uploadArbitraryFile
 import Gargantext.Components.Forest.Tree.Node.Box (nodePopupView)
 import Gargantext.Components.Forest.Tree.Node.Tools.FTree (FTree, LNode(..), NTree(..), fTreeID)
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree.Types (SubTreeOut(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Prelude (Ordering, Unit, bind, compare, discard, pure, unit, void, ($), (<$>), (<>))
 import Gargantext.Routes (AppRoute(Home), SessionRoute(..), appPath, nodeTypeAppRoute)
@@ -32,10 +40,6 @@ import Gargantext.Types as GT
 import Gargantext.Utils.Popover as Popover
 import Gargantext.Utils.Reactix as R2
 import Gargantext.Utils.Toestand as T2
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Record as Record
-import Toestand as T
 
 foreign import back :: Effect Unit
 foreign import link :: String -> Effect Unit
@@ -246,7 +250,7 @@ type LoadProps =
     reload :: T2.Reload
   )
 
-loadFolders :: Record LoadProps -> Aff FTree
+loadFolders :: Record LoadProps -> Aff (Either RESTError FTree)
 loadFolders {nodeId, session} = get session $ TreeFirstLevel (Just nodeId) ""
 
 type PerformActionProps =
@@ -295,7 +299,7 @@ performAction = performAction' where
       _                        -> void $ deleteNode p.session nt id
     refreshFolders p
 
-  doSearch task p@{ tasks, nodeId: id } = liftEffect $ do
+  doSearch task { tasks, nodeId: id } = liftEffect $ do
     GAT.insert id task tasks
     log2 "[performAction] DoSearch task:" task
 
@@ -323,12 +327,15 @@ performAction = performAction' where
       log2 "[performAction] UploadFile, uploaded, task:" task
 
   uploadArbitraryFile' mName blob p@{ tasks, nodeId: id } = do
-    task <- uploadArbitraryFile p.session id { blob, mName }
+    eTask <- uploadArbitraryFile p.session id { blob, mName }
+    case eTask of
+      Left _err -> throwError $ error "[uploadArbitraryFile] RESTError"
+      Right task -> do
         liftEffect $ do
           GAT.insert id task tasks
           log2 "[performAction] UploadArbitraryFile, uploaded, task:" task
 
-  moveNode params p@{ session } = traverse_ f params where
+  moveNode params p = traverse_ f params where
     f (SubTreeOut { in: in', out }) = do
       void $ moveNodeReq p.session in' out
       refreshFolders p

src/Gargantext/Components/Forest/Tree.purs

@@ -2,12 +2,14 @@ module Gargantext.Components.Forest.Tree where
 
 import Gargantext.Prelude
 
+import Control.Monad.Error.Class (throwError)
 import Data.Array as A
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..))
 import Data.Traversable (traverse_, traverse)
 import DOM.Simple.Console (log, log2)
 import Effect (Effect)
-import Effect.Aff (Aff)
+import Effect.Aff (Aff, error)
 import Effect.Class (liftEffect)
 import Reactix as R
 import Reactix.DOM.HTML as H
@@ -30,6 +32,7 @@ import Gargantext.Components.Forest.Tree.Node.Action.Update (updateRequest)
 import Gargantext.Components.Forest.Tree.Node.Action.Upload (uploadFile, uploadArbitraryFile)
 import Gargantext.Components.Forest.Tree.Node.Tools.FTree (FTree, LNode(..), NTree(..), fTreeID)
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree.Types (SubTreeOut(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (Frontends)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (AppRoute)
@@ -83,10 +86,10 @@ treeLoaderCpt = here.component "treeLoader" cpt where
           common = RecordE.pick p :: Record Common
           extra = { tree: tree', reloadTree: p.reload, session }
 
-getNodeTree :: Session -> ID -> Aff FTree
+getNodeTree :: Session -> ID -> Aff (Either RESTError FTree)
 getNodeTree session nodeId = get session $ GR.NodeAPI GT.Tree (Just nodeId) ""
 
-getNodeTreeFirstLevel :: Session -> ID -> Aff FTree
+getNodeTreeFirstLevel :: Session -> ID -> Aff (Either RESTError FTree)
 getNodeTreeFirstLevel session nodeId = get session $ GR.TreeFirstLevel (Just nodeId) ""
 
 type NodeProps = ( reloadTree :: T2.ReloadS, session :: Session | Common )
@@ -244,7 +247,10 @@ uploadFile' nodeType fileType mName contents p@{ tasks, tree: (NTree (LNode { id
     log2 "[performAction] UploadFile, uploaded, task:" task
 
 uploadArbitraryFile' mName blob p@{ tasks, tree: (NTree (LNode { id }) _) } = do
-  task <- uploadArbitraryFile p.session id { blob, mName }
+  eTask <- uploadArbitraryFile p.session id { blob, mName }
+  case eTask of
+    Left err -> throwError $ error $ "[uploadArbitraryFile'] RESTError"
+    Right task -> do
       liftEffect $ do
         GAT.insert id task tasks
         log2 "[performAction] UploadArbitraryFile, uploaded, task:" task

src/Gargantext/Components/Forest/Tree/Node/Action/Add.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Add where
 
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
 import Data.Array (head, length)
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..), fromMaybe, isJust)
 import Data.Newtype (class Newtype)
 import Data.String (Pattern(..), indexOf)
 import Data.Tuple.Nested ((/\))
 import Effect (Effect)
-import Effect.Aff (Aff, launchAff_)
+import Effect.Aff (Aff, error, launchAff_)
+import Effect.Class (liftEffect)
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Simple.JSON as JSON
+import Toestand as T
+import Web.HTML (window)
+import Web.HTML.Navigator (userAgent)
+import Web.HTML.Window (navigator)
+
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Settings (SettingsBox(..), settingsBox)
 import Gargantext.Components.Forest.Tree.Node.Tools (formChoiceSafe, panel, submitButton)
 import Gargantext.Components.InputWithEnter (inputWithEnter)
 import Gargantext.Components.Lang (Lang(..), translate)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types (NodeType(..), charCodeIcon)
 import Gargantext.Types as GT
 import Gargantext.Utils (nbsp)
 import Gargantext.Utils.Reactix as R2
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Simple.JSON as JSON
-import Toestand as T
-import Web.HTML (window)
-import Web.HTML.Navigator (userAgent)
-import Web.HTML.Window (navigator)
-
-import Gargantext.Prelude
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Add"
 
-addNode :: Session -> GT.ID -> AddNodeValue -> Aff (Array GT.ID)
+addNode :: Session -> GT.ID -> AddNodeValue -> Aff (Either RESTError (Array GT.ID))
 addNode session parentId = post session $ GR.NodeAPI GT.Node (Just parentId) ""
 
 addNodeAsync :: Session
@@ -40,9 +45,12 @@ addNodeAsync :: Session
              -> AddNodeValue
              -> Aff GT.AsyncTaskWithType
 addNodeAsync session parentId q = do
-  task <- post session p q
-  pure $ GT.AsyncTaskWithType {task, typ: GT.AddNode}
-  where p = GR.NodeAPI GT.Node (Just parentId) (GT.asyncTaskTypePath GT.AddNode)
+  eTask :: Either RESTError GT.AsyncTask <- post session p q
+  case eTask of
+    Left _err -> liftEffect $ throwError $ error "[addNodeAsync] RESTError"
+    Right task -> pure $ GT.AsyncTaskWithType { task, typ: GT.AddNode }
+  where
+    p = GR.NodeAPI GT.Node (Just parentId) (GT.asyncTaskTypePath GT.AddNode)
 
 ----------------------------------------------------------------------
 -- TODO AddNodeParams

src/Gargantext/Components/Forest/Tree/Node/Action/Contact.purs

@@ -2,6 +2,7 @@ module Gargantext.Components.Forest.Tree.Node.Action.Contact where
 
 import Prelude
 
+import Data.Either (Either)
 import Data.Maybe (Maybe(..))
 import Effect.Aff (Aff, launchAff)
 import Formula as F
@@ -11,6 +12,7 @@ import Toestand as T
 
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Action.Contact.Types (AddContactParams(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types (ID)
@@ -20,7 +22,7 @@ import Gargantext.Utils.Reactix as R2
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Contact"
 
-contactReq :: Session -> ID -> AddContactParams -> Aff ID
+contactReq :: Session -> ID -> AddContactParams -> Aff (Either RESTError ID)
 contactReq session nodeId =
   post session $ GR.NodeAPI GT.Annuaire (Just nodeId) "contact"
 
@@ -56,7 +58,7 @@ textInputBox :: R2.Leaf TextInputBoxProps
 textInputBox props = R.createElement textInputBoxCpt props []
 textInputBoxCpt :: R.Component TextInputBoxProps
 textInputBoxCpt = here.component "textInputBox" cpt where
-  cpt p@{ boxName, boxAction, dispatch, isOpen
+  cpt { boxName, boxAction, dispatch, isOpen
       , params: { firstname, lastname } } _ =
     content <$> T.useLive T.unequal isOpen
             <*> T.useBox firstname <*> T.useBox lastname

src/Gargantext/Components/Forest/Tree/Node/Action/Delete.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Delete
   where
 
+import Gargantext.Prelude
+
+import Data.Either (Either)
 import Data.Maybe (Maybe(..))
 import Effect.Aff (Aff)
 import Reactix as R
 import Reactix.DOM.HTML as H
 
-import Gargantext.Prelude
-
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Tools (submitButton, panel)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, delete, put_)
-import Gargantext.Types  as GT
 import Gargantext.Types (NodeType(..))
+import Gargantext.Types as GT
 import Gargantext.Utils.Reactix as R2
 
 here :: R2.Here
@@ -21,7 +23,7 @@ here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Delete"
 
 -- TODO Delete with asyncTaskWithType
 
-deleteNode :: Session -> NodeType -> GT.ID -> Aff GT.ID
+deleteNode :: Session -> NodeType -> GT.ID -> Aff (Either RESTError GT.ID)
 deleteNode session nt nodeId = delete session $ NodeAPI GT.Node (Just nodeId) ""
 
 {-
@@ -32,7 +34,7 @@ deleteNode session nt nodeId = delete session $ NodeAPI GT.Node (Just nodeId) ""
     -}
 
 type ParentID = GT.ID
-unpublishNode :: Session -> Maybe ParentID -> GT.ID -> Aff GT.ID
+unpublishNode :: Session -> Maybe ParentID -> GT.ID -> Aff (Either RESTError GT.ID)
 unpublishNode s p n = put_ s $ NodeAPI GT.Node p ("unpublish/" <> show n)
 
 

src/Gargantext/Components/Forest/Tree/Node/Action/Link.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Link where
 
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
-import Data.Show.Generic (genericShow)
 import Data.Maybe (Maybe(..))
-import Data.Newtype (class Newtype)
-import Data.Tuple.Nested ((/\))
+import Data.Show.Generic (genericShow)
 import Effect.Aff (Aff)
+import Effect.Class (liftEffect)
+import Effect.Exception (error)
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
@@ -14,7 +18,7 @@ import Toestand as T
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Tools (submitButton, panel)
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree (subTreeView, SubTreeParamsIn)
-import Gargantext.Prelude
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types as GT
@@ -33,9 +37,11 @@ derive newtype instance JSON.WriteForeign LinkNodeReq
 
 linkNodeReq :: Session -> Maybe GT.NodeType -> GT.ID -> GT.ID -> Aff GT.AsyncTaskWithType
 linkNodeReq session nt fromId toId = do
-  task <- post session (NodeAPI GT.Node (Just fromId) "update")
+  eTask :: Either RESTError GT.AsyncTask <- post session (NodeAPI GT.Node (Just fromId) "update")
                         (LinkNodeReq { nodeType: linkNodeType nt, id: toId })
-  pure $ GT.AsyncTaskWithType {task, typ: GT.UpdateNode }
+  case eTask of
+    Left _err -> liftEffect $ throwError $ error "[linkNodeReq] RESTError"
+    Right task -> pure $ GT.AsyncTaskWithType { task, typ: GT.UpdateNode }
 
 linkNodeType :: Maybe GT.NodeType -> GT.NodeType
 linkNodeType (Just GT.Corpus)   = GT.Annuaire
@@ -48,7 +54,7 @@ linkNode = R.createElement linkNodeCpt
 linkNodeCpt :: R.Component SubTreeParamsIn
 linkNodeCpt = here.component "linkNode" cpt
   where
-    cpt p@{dispatch, subTreeParams, id, nodeType, session, handed} _ = do
+    cpt { dispatch, handed, id, nodeType, session, subTreeParams } _ = do
       action <- T.useBox (LinkNode { nodeType: Nothing, params: Nothing})
       action' <- T.useLive T.unequal action
 

src/Gargantext/Components/Forest/Tree/Node/Action/Merge.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Merge where
 
+import Gargantext.Prelude
+
+import Data.Either (Either)
 import Data.Maybe (Maybe(..))
 import Data.Set as Set
 import Effect.Aff (Aff)
@@ -10,7 +13,7 @@ import Toestand as T
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Tools (submitButton, panel, checkbox, checkboxesListGroup)
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree (subTreeView, SubTreeParamsIn)
-import Gargantext.Prelude
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, put_)
 import Gargantext.Types as GT
@@ -19,7 +22,7 @@ import Gargantext.Utils.Reactix as R2
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Merge"
 
-mergeNodeReq :: Session -> GT.ID -> GT.ID -> Aff (Array GT.ID)
+mergeNodeReq :: Session -> GT.ID -> GT.ID -> Aff (Either RESTError (Array GT.ID))
 mergeNodeReq session fromId toId =
   put_ session $ NodeAPI GT.Node (Just fromId) ("merge/" <> show toId)
 
@@ -28,7 +31,7 @@ mergeNode = R.createElement mergeNodeCpt
 mergeNodeCpt :: R.Component SubTreeParamsIn
 mergeNodeCpt = here.component "mergeNode" cpt
   where
-    cpt p@{dispatch, subTreeParams, id, nodeType, session, handed} _ = do
+    cpt {dispatch, subTreeParams, id, nodeType, session, handed} _ = do
       action <- T.useBox (MergeNode { params: Nothing })
       action' <- T.useLive T.unequal action
 

src/Gargantext/Components/Forest/Tree/Node/Action/Move.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Move where
 
+import Gargantext.Prelude
+
+import Data.Either (Either)
 import Data.Maybe (Maybe(..))
 import Effect.Aff (Aff)
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
 
-import Gargantext.Prelude
-
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
 import Gargantext.Components.Forest.Tree.Node.Tools (submitButton, panel)
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree (subTreeView, SubTreeParamsIn)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, put_)
 import Gargantext.Types as GT
@@ -19,7 +21,7 @@ import Gargantext.Utils.Reactix as R2
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Move"
 
-moveNodeReq :: Session -> GT.ID -> GT.ID -> Aff (Array GT.ID)
+moveNodeReq :: Session -> GT.ID -> GT.ID -> Aff (Either RESTError (Array GT.ID))
 moveNodeReq session fromId toId =
   put_ session $ NodeAPI GT.Node (Just fromId) ("move/" <> show toId)
 

src/Gargantext/Components/Forest/Tree/Node/Action/Rename.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Rename where
 
+
+import Data.Either (Either)
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
@@ -8,14 +10,15 @@ import Simple.JSON as JSON
 
 import Gargantext.Prelude
 
-import Gargantext.Components.Forest.Tree.Node.Action
-import Gargantext.Types as GT
-import Gargantext.Types (ID)
+import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, put)
+import Gargantext.Types (ID)
+import Gargantext.Types as GT
 
 ------------------------------------------------------------------------
-rename :: Session -> ID -> RenameValue -> Aff (Array ID)
+rename :: Session -> ID -> RenameValue -> Aff (Either RESTError (Array ID))
 rename session renameNodeId =
   put session $ GR.NodeAPI GT.Node (Just renameNodeId) "rename"
 

src/Gargantext/Components/Forest/Tree/Node/Action/Search/Types.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Search.Types where
 
+import Control.Monad.Error.Class (throwError)
 import Data.Array (concat)
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..), fromMaybe, maybe)
 import Data.Newtype (class Newtype)
@@ -9,15 +11,17 @@ import Data.Set as Set
 import Data.String as String
 import Data.Tuple (Tuple)
 import Data.Tuple.Nested ((/\))
-import Effect.Aff (Aff)
+import Effect.Aff (Aff, error)
+import Effect.Class (liftEffect)
 import Simple.JSON as JSON
-import Simple.JSON.Generics as JSONG
 import URI.Extra.QueryPairs as QP
 import URI.Query as Q
 
+
 import Gargantext.Prelude
 
-import Gargantext.Components.Lang
+import Gargantext.Components.Lang (Lang)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (class ToUrl, backendUrl)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session(..), post)
@@ -368,7 +372,9 @@ instance JSON.WriteForeign SearchQuery where
 
 performSearch :: Session -> Int -> SearchQuery -> Aff GT.AsyncTaskWithType
 performSearch session nodeId q = do
-  task <- post session p q
-  pure $ GT.AsyncTaskWithType {task, typ: GT.Query}
+  eTask :: Either RESTError GT.AsyncTask <- post session p q
+  case eTask of
+    Left _err -> liftEffect $ throwError $ error "[performSearch] RESTError"
+    Right task -> pure $ GT.AsyncTaskWithType { task, typ: GT.Query }
   where
     p = GR.NodeAPI GT.Corpus (Just nodeId) $ GT.asyncTaskTypePath GT.Query

src/Gargantext/Components/Forest/Tree/Node/Action/Share.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Share where
 
+import Data.Either (Either)
 import Data.Generic.Rep (class Generic)
-import Data.Show.Generic (genericShow)
 import Data.Maybe (Maybe(..))
+import Data.Show.Generic (genericShow)
 import Effect.Aff (Aff)
 import Reactix as R
 import Reactix.DOM.HTML as H
@@ -16,7 +17,7 @@ import Gargantext.Components.Forest.Tree.Node.Action (Action)
 import Gargantext.Components.Forest.Tree.Node.Action as Action
 import Gargantext.Components.Forest.Tree.Node.Tools as Tools
 import Gargantext.Components.Forest.Tree.Node.Tools.SubTree (subTreeView, SubTreeParamsIn)
-import Gargantext.Prelude (class Eq, class Show, bind, pure, Unit)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types (ID)
@@ -27,7 +28,7 @@ here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Share"
 
 ------------------------------------------------------------------------
-shareReq :: Session -> ID -> ShareNodeParams -> Aff ID
+shareReq :: Session -> ID -> ShareNodeParams -> Aff (Either RESTError ID)
 shareReq session nodeId =
   post session $ GR.NodeAPI GT.Node (Just nodeId) "share"
 
@@ -70,7 +71,7 @@ publishNode = R.createElement publishNodeCpt
 publishNodeCpt :: R.Component SubTreeParamsIn
 publishNodeCpt = here.component "publishNode" cpt
   where
-    cpt p@{dispatch, subTreeParams, id, nodeType, session, handed} _ = do
+    cpt { dispatch, handed, id, nodeType, session, subTreeParams } _ = do
       action <- T.useBox (Action.SharePublic { params: Nothing })
       action' <- T.useLive T.unequal action
 

src/Gargantext/Components/Forest/Tree/Node/Action/Update.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Update where
 
-import Gargantext.Components.Forest.Tree.Node.Action.Update.Types
-
+import Control.Monad.Error.Class (throwError)
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..))
 import Effect.Aff (Aff)
+import Effect.Class (liftEffect)
+import Effect.Exception (error)
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
@@ -11,7 +13,9 @@ import Toestand as T
 import Gargantext.Prelude
 
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..))
+import Gargantext.Components.Forest.Tree.Node.Action.Update.Types
 import Gargantext.Components.Forest.Tree.Node.Tools (formChoiceSafe, submitButton, panel)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types (NodeType(..), ID)
@@ -23,8 +27,10 @@ here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Update"
 
 updateRequest :: UpdateNodeParams -> Session -> ID -> Aff GT.AsyncTaskWithType
 updateRequest updateNodeParams session nodeId = do
-  task <- post session p updateNodeParams
-  pure $ GT.AsyncTaskWithType {task, typ: GT.UpdateNode }
+  eTask :: Either RESTError GT.AsyncTask <- post session p updateNodeParams
+  case eTask of
+    Left _err -> liftEffect $ throwError $ error "[updateRequest] RESTError"
+    Right task -> pure $ GT.AsyncTaskWithType { task, typ: GT.UpdateNode }
     where
       p = GR.NodeAPI GT.Node (Just nodeId) "update"
 
@@ -37,11 +43,11 @@ update ::  R2.Component UpdateProps
 update = R.createElement updateCpt
 updateCpt :: R.Component UpdateProps
 updateCpt = here.component "update" cpt where
-  cpt props@{ dispatch, nodeType: Dashboard } _ = pure $ updateDashboard props []
-  cpt props@{ dispatch, nodeType: Graph } _     = pure $ updateGraph props []
-  cpt props@{ dispatch, nodeType: NodeList } _  = pure $ updateNodeList props []
-  cpt props@{ dispatch, nodeType: Texts } _     = pure $ updateTexts props []
-  cpt props@{ dispatch, nodeType: _ } _         = pure $ updateOther props []
+  cpt props@{ nodeType: Dashboard } _ = pure $ updateDashboard props []
+  cpt props@{ nodeType: Graph } _     = pure $ updateGraph props []
+  cpt props@{ nodeType: NodeList } _  = pure $ updateNodeList props []
+  cpt props@{ nodeType: Texts } _     = pure $ updateTexts props []
+  cpt props@{ nodeType: _ } _         = pure $ updateOther props []
 
 updateDashboard :: R2.Component UpdateProps
 updateDashboard = R.createElement updateDashboardCpt
@@ -99,7 +105,7 @@ updateOther :: R2.Component UpdateProps
 updateOther = R.createElement updateOtherCpt
 updateOtherCpt :: R.Component UpdateProps
 updateOtherCpt = here.component "updateOther" cpt where
-  cpt { dispatch } _ = do
+  cpt _ _ = do
     pure $ H.div {} []
 
 -- fragmentPT $ "Update " <> show nodeType

src/Gargantext/Components/Forest/Tree/Node/Action/Upload.purs

 module Gargantext.Components.Forest.Tree.Node.Action.Upload where
 
-import Data.Either (fromRight')
-import Data.Generic.Rep (class Generic)
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
+import DOM.Simple.Console (log2)
+import Data.Either (Either(..), fromRight')
 import Data.Eq.Generic (genericEq)
+import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..), fromJust, fromMaybe)
 import Data.Newtype (class Newtype)
 import Data.String.Regex as DSR
 import Data.String.Regex.Flags as DSRF
 import Data.Tuple (Tuple(..))
 import Data.Tuple.Nested ((/\))
-import DOM.Simple.Console (log2)
 import Effect (Effect)
 import Effect.Aff (Aff, launchAff)
 import Effect.Class (liftEffect)
-import Partial.Unsafe (unsafePartial, unsafeCrashWith)
-import React.SyntheticEvent     as E
-import Reactix                  as R
-import Reactix.DOM.HTML         as H
-import Toestand as T
-import URI.Extra.QueryPairs     as QP
--- import Web.File.Blob (Blob)
-import Web.File.FileReader.Aff (readAsDataURL)
-
-import Gargantext.Prelude
-
+import Effect.Exception (error)
 import Gargantext.Components.Forest.Tree.Node.Action (Action(..), Props)
 import Gargantext.Components.Forest.Tree.Node.Action.Upload.Types (FileType(..), UploadFileBlob(..), readUFBAsText)
 import Gargantext.Components.Forest.Tree.Node.Tools (fragmentPT, formChoiceSafe, panel)
 import Gargantext.Components.Lang (Lang(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
-import Gargantext.Sessions (Session, postWwwUrlencoded, post)
+import Gargantext.Sessions (Session, postWwwUrlencoded)
 import Gargantext.Types (NodeType(..), ID)
 import Gargantext.Types as GT
 import Gargantext.Utils.Reactix as R2
+import Partial.Unsafe (unsafePartial, unsafeCrashWith)
+import React.SyntheticEvent as E
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Toestand as T
+import URI.Extra.QueryPairs as QP
+import Web.File.FileReader.Aff (readAsDataURL)
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Action.Upload"
@@ -52,7 +53,7 @@ actionUploadCpt :: R.Component ActionUpload
 actionUploadCpt = here.component "actionUpload" cpt where
   cpt { nodeType: Corpus, dispatch, id, session } _ = pure $ uploadFileView {dispatch, id, nodeType: GT.Corpus, session}
   cpt { nodeType: NodeList, dispatch, id, session } _ = pure $ uploadTermListView {dispatch, id, nodeType: GT.NodeList, session}
-  cpt props@{ nodeType: _, dispatch, id, session } _ = pure $ actionUploadOther props []
+  cpt props@{ nodeType: _ } _ = pure $ actionUploadOther props []
 
 {-
 actionUpload Annuaire id session dispatch =
@@ -139,12 +140,6 @@ uploadFileViewCpt = here.component "uploadFileView" cpt
                             ]
       pure $ panel bodies footer
 
-    renderOptionFT :: FileType -> R.Element
-    renderOptionFT opt = H.option {} [ H.text $ show opt ]
-
-    renderOptionLang :: Lang -> R.Element
-    renderOptionLang opt = H.option {} [ H.text $ show opt ]
-
     onChangeContents :: forall e. T.Box (Maybe UploadFile) -> E.SyntheticEvent_ e -> Effect Unit
     onChangeContents mFile e = do
       let mF = R2.inputFileNameWithBlob 0 e
@@ -329,8 +324,10 @@ uploadFile session NodeList id JSON { mName, contents } = do
   -}
 uploadFile session nodeType id fileType { mName, contents } = do
   -- contents <- readAsText blob
-  task <- postWwwUrlencoded session p bodyParams
-  pure $ GT.AsyncTaskWithType {task, typ: GT.Form}
+  eTask :: Either RESTError GT.AsyncTask <- postWwwUrlencoded session p bodyParams
+  case eTask of
+    Left _err -> liftEffect $ throwError $ error "[uploadFile] RESTError"
+    Right task -> pure $ GT.AsyncTaskWithType { task, typ: GT.Form }
     --postMultipartFormData session p fileContents
   where
     p = case nodeType of
@@ -351,7 +348,7 @@ uploadFile session nodeType id fileType { mName, contents } = do
 uploadArbitraryFile :: Session
                     -> ID
                     -> {blob :: UploadFileBlob, mName :: Maybe String}
-                    -> Aff GT.AsyncTaskWithType
+                    -> Aff (Either RESTError GT.AsyncTaskWithType)
 uploadArbitraryFile session id {mName, blob: UploadFileBlob blob} = do
     contents <- readAsDataURL blob
     uploadArbitraryDataURL session id mName contents
@@ -360,12 +357,12 @@ uploadArbitraryDataURL :: Session
                        -> ID
                        -> Maybe String
                        -> String
-                       -> Aff GT.AsyncTaskWithType
+                       -> Aff (Either RESTError GT.AsyncTaskWithType)
 uploadArbitraryDataURL session id mName contents' = do
     let re = fromRight' (\_ -> unsafeCrashWith "Unexpected Left") $ DSR.regex "data:.*;base64," DSRF.noFlags
         contents = DSR.replace re "" contents'
-    task <- postWwwUrlencoded session p (bodyParams contents)
-    pure $ GT.AsyncTaskWithType { task, typ: GT.Form }
+    eTask :: Either RESTError GT.AsyncTask <- postWwwUrlencoded session p (bodyParams contents)
+    pure $ (\task -> GT.AsyncTaskWithType { task, typ: GT.Form }) <$> eTask
   where
     p = GR.NodeAPI GT.Node (Just id) $ GT.asyncTaskTypePath GT.UploadFile
 
@@ -447,7 +444,6 @@ uploadTermButtonCpt :: R.Component UploadTermButtonProps
 uploadTermButtonCpt = here.component "uploadTermButton" cpt
   where
     cpt { dispatch
-        , id
         , mFile
         , nodeType
         , uploadType } _ = do

src/Gargantext/Components/Forest/Tree/Node/Tools/ProgressBar.purs

 module Gargantext.Components.Forest.Tree.Node.Tools.ProgressBar where
 
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
+import Data.Either (Either(..))
 import Data.Int (fromNumber)
 import Data.Maybe (Maybe(..))
 import Data.Tuple.Nested ((/\))
 import Effect (Effect)
-import Effect.Aff (Aff, launchAff_)
+import Effect.Aff (Aff, error, launchAff_)
 import Effect.Class (liftEffect)
 import Effect.Timer (clearInterval, setInterval)
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Toestand as T
-
-import Gargantext.Prelude
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, get)
 import Gargantext.Types as GT
 import Gargantext.Utils.Reactix as R2
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Toestand as T
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Tools.ProgressBar"
@@ -34,13 +37,11 @@ type Props = (
 
 asyncProgressBar :: R2.Component Props
 asyncProgressBar = R.createElement asyncProgressBarCpt
-
 asyncProgressBarCpt :: R.Component Props
 asyncProgressBarCpt = here.component "asyncProgressBar" cpt
   where
     cpt props@{ asyncTask: (GT.AsyncTaskWithType {task: GT.AsyncTask {id}})
               , barType
-              , nodeId
               , onFinish
               } _ = do
       progress <- T.useBox 0.0
@@ -49,7 +50,11 @@ asyncProgressBarCpt = here.component "asyncProgressBar" cpt
       R.useEffectOnce' $ do
         intervalId <- setInterval 1000 $ do
           launchAff_ $ do
-            asyncProgress@(GT.AsyncProgress {status}) <- queryProgress props
+            eAsyncProgress <- queryProgress props
+            case eAsyncProgress of
+              Left _err -> throwError $ error "[asyncProgressBar] RESTError"
+              Right asyncProgress -> do
+                let GT.AsyncProgress { status } = asyncProgress
                 liftEffect do
                   T.write_ (min 100.0 $ GT.progressPercent asyncProgress) progress
                   if (status == GT.IsFinished) || (status == GT.IsKilled) || (status == GT.IsFailure) then do
@@ -104,7 +109,7 @@ progressIndicatorCpt = here.component "progressIndicator" cpt
         Nothing -> 0
         Just x  -> x
 
-queryProgress :: Record Props -> Aff GT.AsyncProgress
+queryProgress :: Record Props -> Aff (Either RESTError GT.AsyncProgress)
 queryProgress { asyncTask: GT.AsyncTaskWithType { task: GT.AsyncTask {id}
                                                 , typ
                                                 }

src/Gargantext/Components/Forest/Tree/Node/Tools/SubTree.purs

 module Gargantext.Components.Forest.Tree.Node.Tools.SubTree where
 
+import Gargantext.Prelude
+
 import Data.Array as A
+import Data.Either (Either)
 import Data.Maybe (Maybe(..))
-import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff)
-import React.SyntheticEvent     as E
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Record as Record
-import Toestand as T
-
-import Gargantext.Prelude
-
 import Gargantext.Components.Forest.Tree.Node.Action (Props, Action, subTreeOut, setTreeOut)
-import Gargantext.Components.Forest.Tree.Node.Tools.SubTree.Types (SubTreeParams(..), SubTreeOut(..))
-import Gargantext.Components.Forest.Tree.Node.Tools.FTree (FTree, LNode(..), NTree(..))
 import Gargantext.Components.Forest.Tree.Node.Tools (nodeText)
+import Gargantext.Components.Forest.Tree.Node.Tools.FTree (FTree, LNode(..), NTree(..))
+import Gargantext.Components.Forest.Tree.Node.Tools.SubTree.Types (SubTreeParams(..), SubTreeOut(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session(..), get)
 import Gargantext.Types as GT
 import Gargantext.Utils.Reactix as R2
+import React.SyntheticEvent as E
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Record as Record
+import Toestand as T
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Forest.Tree.Node.Tools.SubTree"
@@ -42,7 +42,7 @@ subTreeView = R.createElement subTreeViewCpt
 subTreeViewCpt :: R.Component SubTreeParamsProps
 subTreeViewCpt = here.component "subTreeView" cpt
   where
-    cpt params@{ action
+    cpt { action
         , dispatch
         , handed
         , id
@@ -67,12 +67,12 @@ subTreeViewCpt = here.component "subTreeView" cpt
                             , tree
                             } []
 
-loadSubTree :: Array GT.NodeType -> Session -> Aff FTree
+loadSubTree :: Array GT.NodeType -> Session -> Aff (Either RESTError FTree)
 loadSubTree nodetypes session = getSubTree session treeId nodetypes
   where
     Session { treeId } = session
 
-getSubTree :: Session -> Int -> Array GT.NodeType -> Aff FTree
+getSubTree :: Session -> Int -> Array GT.NodeType -> Aff (Either RESTError FTree)
 getSubTree session treeId showtypes = get session $ GR.NodeAPI GT.Tree (Just treeId) nodeTypes
   where
     nodeTypes     = A.foldl (\a b -> a <> "type=" <> show b <> "&") "?" showtypes
@@ -88,7 +88,7 @@ subTreeViewLoaded = R.createElement subTreeViewLoadedCpt
 subTreeViewLoadedCpt :: R.Component CorpusTreeProps
 subTreeViewLoadedCpt = here.component "subTreeViewLoaded" cpt
   where
-    cpt p@{ dispatch, handed, id, nodeType, session, tree } _ = do
+    cpt p@{ handed } _ = do
       let pRender = Record.merge { render: subTreeTreeView } p
 
       pure $ H.div {className:"tree"}
@@ -108,7 +108,6 @@ subTreeTreeView = R2.ntCreateElement subTreeTreeViewCpt
 subTreeTreeViewCpt :: R2.NTComponent CorpusTreeRenderProps
 subTreeTreeViewCpt = here.ntComponent "subTreeTreeView" cpt where
   cpt (CorpusTreeRenderProps p@{ action
-                               , dispatch
                                , handed
                                , id
                                , render
@@ -142,7 +141,6 @@ subTreeTreeViewCpt = here.ntComponent "subTreeTreeView" cpt where
       sortedAry = A.sortWith (\(NTree (LNode {id:id'}) _) -> id')
         $ A.filter (\(NTree (LNode {id:id'}) _) -> id'/= id) ary
       validNodeType = (A.elem nodeType valitypes) && (id /= targetId)
-      clickable    = if validNodeType then "clickable" else ""
       isSelected n action' = case (subTreeOut action') of
         Nothing                   -> false
         (Just (SubTreeOut {out})) -> n == out

src/Gargantext/Components/GraphExplorer.purs

 module Gargantext.Components.GraphExplorer where
 
+import Gargantext.Prelude hiding (max, min)
+
 import Data.Array as A
+import Data.Either (Either)
 import Data.FoldableWithIndex (foldMapWithIndex)
 import Data.Int (toNumber)
 import Data.Map as Map
@@ -19,13 +22,12 @@ import Record as Record
 import Record.Extra as RX
 import Toestand as T
 
-import Gargantext.Prelude hiding (max,min)
-
 import Gargantext.Components.App.Data (Boxes)
 import Gargantext.Components.Graph as Graph
 import Gargantext.Components.GraphExplorer.Controls as Controls
 import Gargantext.Components.GraphExplorer.Sidebar.Types as GEST
 import Gargantext.Components.GraphExplorer.Types as GET
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Data.Louvain as Louvain
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Hooks.Sigmax.Types as SigmaxT
@@ -105,7 +107,7 @@ explorerCpt = here.component "explorer" cpt
         , session
         } _ = do
       { mMetaData } <- GEST.focusedSidePanel sidePanelGraph
-      graphVersion' <- T.useLive T.unequal graphVersion
+      _graphVersion' <- T.useLive T.unequal graphVersion
       handed' <- T.useLive T.unequal handed
       mMetaData' <- T.useLive T.unequal mMetaData
 
@@ -115,7 +117,7 @@ explorerCpt = here.component "explorer" cpt
                           then SigmaxT.InitialRunning
                           else SigmaxT.InitialStopped
 
-      dataRef <- R.useRef graph
+      _dataRef <- R.useRef graph
       graphRef <- R.useRef null
       controls <- Controls.useGraphControls { forceAtlasS
                                             , graph
@@ -285,7 +287,7 @@ modeGraphType Types.Sources = "star"
 modeGraphType Types.Terms = "def"
 
 
-getNodes :: Session -> T2.Reload -> GET.GraphId -> Aff GET.HyperdataGraph
+getNodes :: Session -> T2.Reload -> GET.GraphId -> Aff (Either RESTError GET.HyperdataGraph)
 getNodes session graphVersion graphId =
   get session $ NodeAPI Types.Graph
                         (Just graphId)
@@ -305,8 +307,7 @@ transformGraph graph { edgeConfluence'
                      , edgeWeight'
                      , nodeSize'
                      , removedNodeIds'
-                     , selectedNodeIds'
-                     , showEdges' } = SigmaxT.Graph {nodes: newNodes, edges: newEdges}
+                     , selectedNodeIds' } = SigmaxT.Graph {nodes: newNodes, edges: newEdges}
   where
     edges = SigmaxT.graphEdges graph
     nodes = SigmaxT.graphNodes graph
@@ -325,18 +326,10 @@ transformGraph graph { edgeConfluence'
     newNodes  = Seq.filter nodeFilter $ Seq.map (nodeMarked <<< nodeHideSize) nodes
     newEdges  = Seq.filter (edgeInGraph $ Set.fromFoldable $ Seq.map _.id newNodes) newEdges'
 
-    edgeFilter e = true
+    edgeFilter _e = true
     nodeFilter n = nodeRemovedFilter n
 
-    nodeSizeFilter :: Record SigmaxT.Node -> Boolean
-    nodeSizeFilter node@{ size } = Range.within nodeSize' size
-
-    nodeRemovedFilter node@{ id } = not $ Set.member id removedNodeIds'
-
-    edgeConfluenceFilter :: Record SigmaxT.Edge -> Boolean
-    edgeConfluenceFilter edge@{ confluence } = Range.within edgeConfluence' confluence
-    edgeWeightFilter :: Record SigmaxT.Edge -> Boolean
-    edgeWeightFilter edge@{ weightIdx } = Range.within edgeWeight' $ toNumber weightIdx
+    nodeRemovedFilter { id } = not $ Set.member id removedNodeIds'
 
     edgeHideConfluence :: Record SigmaxT.Edge -> Record SigmaxT.Edge
     edgeHideConfluence edge@{ confluence } =
@@ -352,13 +345,6 @@ transformGraph graph { edgeConfluence'
       else
         edge { hidden = true }
 
-    edgeShowFilter :: Record SigmaxT.Edge -> Record SigmaxT.Edge
-    edgeShowFilter edge =
-      if SigmaxT.edgeStateHidden showEdges' then
-        edge { hidden = true }
-      else
-        edge
-
     edgeInGraph :: SigmaxT.NodeIds -> Record SigmaxT.Edge -> Boolean
     edgeInGraph nodeIds e = (Set.member e.source nodeIds) && (Set.member e.target nodeIds)
 

src/Gargantext/Components/GraphExplorer/API.purs

 module Gargantext.Components.GraphExplorer.API where
 
+import Gargantext.Prelude
+
+import Data.Either (Either(..))
 import Data.Maybe (Maybe)
 import Effect.Aff (Aff)
-
 import Gargantext.Components.GraphExplorer.Types as GET
 import Gargantext.Components.NgramsTable.Core as NTC
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Sigmax.Types as SigmaxT
-import Gargantext.Prelude
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, get, post)
 import Gargantext.Types as GT
@@ -20,10 +22,10 @@ type GraphAsyncUpdateParams =
   , version :: NTC.Version
   )
 
-graphAsyncUpdate :: Record GraphAsyncUpdateParams -> Aff GT.AsyncTaskWithType
+graphAsyncUpdate :: Record GraphAsyncUpdateParams -> Aff (Either RESTError GT.AsyncTaskWithType)
 graphAsyncUpdate { graphId, listId, nodes, session, termList, version } = do
-  task <- post session p q
-  pure $ GT.AsyncTaskWithType { task, typ: GT.GraphRecompute }
+  eTask <- post session p q
+  pure $ (\task -> GT.AsyncTaskWithType { task, typ: GT.GraphRecompute }) <$> eTask
   where
     p = GR.GraphAPI graphId $ GT.asyncTaskTypePath GT.GraphRecompute
     q = { listId
@@ -37,10 +39,10 @@ type GraphAsyncRecomputeParams =
   , session :: Session
   )
 
-graphAsyncRecompute :: Record GraphAsyncRecomputeParams -> Aff GT.AsyncTaskWithType
+graphAsyncRecompute :: Record GraphAsyncRecomputeParams -> Aff (Either RESTError GT.AsyncTaskWithType)
 graphAsyncRecompute { graphId, session } = do
-  task <- post session p q
-  pure $ GT.AsyncTaskWithType { task, typ: GT.GraphRecompute }
+  eTask <- post session p q
+  pure $ (\task -> GT.AsyncTaskWithType { task, typ: GT.GraphRecompute }) <$> eTask
   where
     p = GR.GraphAPI graphId $ GT.asyncTaskTypePath GT.GraphRecompute
     q = {}
@@ -51,7 +53,7 @@ type QueryProgressParams =
   , taskId  :: String
   )
 
-queryProgress :: Record QueryProgressParams -> Aff GT.AsyncProgress
+queryProgress :: Record QueryProgressParams -> Aff (Either RESTError GT.AsyncProgress)
 queryProgress { graphId, session, taskId } = do
   get session $ GR.GraphAPI graphId $ "async/" <> taskId <> "/poll"
 
@@ -65,7 +67,7 @@ type GraphVersionsParams =
   , session :: Session
   )
 
-graphVersions :: Record GraphVersionsParams -> Aff (Record GraphVersions)
+graphVersions :: Record GraphVersionsParams -> Aff (Either RESTError (Record GraphVersions))
 graphVersions { graphId, session }  = get session $ GR.GraphAPI graphId $ "versions"
 
 type UpdateGraphVersionsParams =
@@ -73,7 +75,7 @@ type UpdateGraphVersionsParams =
   , session :: Session
   )
 
-updateGraphVersions :: Record UpdateGraphVersionsParams -> Aff GET.GraphData
+updateGraphVersions :: Record UpdateGraphVersionsParams -> Aff (Either RESTError GET.GraphData)
 updateGraphVersions { graphId, session } = post session (GR.GraphAPI graphId $ "versions") {}
 
 type CloneGraphParams =
@@ -82,5 +84,5 @@ type CloneGraphParams =
   , session :: Session
   )
 
-cloneGraph :: Record CloneGraphParams -> Aff Int
+cloneGraph :: Record CloneGraphParams -> Aff (Either RESTError Int)
 cloneGraph { hyperdataGraph, id, session } = post session (GR.GraphAPI id $ "clone") hyperdataGraph

src/Gargantext/Components/GraphExplorer/Button.purs

@@ -3,11 +3,13 @@ module Gargantext.Components.GraphExplorer.Button
 
 import Prelude
 
+import Data.Either (Either(..))
 import Data.Enum (fromEnum)
 import Data.Maybe (Maybe(..))
 import Data.DateTime as DDT
 import Data.DateTime.Instant as DDI
 import Data.String as DS
+import DOM.Simple.Console (log2)
 import Effect (Effect)
 import Effect.Aff (launchAff_)
 import Effect.Class (liftEffect)
@@ -19,6 +21,7 @@ import Gargantext.Components.Forest.Tree.Node.Action.Upload (uploadArbitraryData
 import Gargantext.Components.GraphExplorer.API (cloneGraph)
 import Gargantext.Components.GraphExplorer.Types as GET
 import Gargantext.Components.GraphExplorer.Utils as GEU
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Sigmax as Sigmax
 import Gargantext.Hooks.Sigmax.Sigma as Sigma
 import Gargantext.Sessions (Session)
@@ -93,9 +96,14 @@ cameraButton { id
               _   -> GET.Camera { ratio: 1.0, x: 0.0, y: 0.0 }
         let hyperdataGraph' = GET.HyperdataGraph { graph: graphData, mCamera: Just camera }
         launchAff_ $ do
-          clonedGraphId <- cloneGraph { id, hyperdataGraph: hyperdataGraph', session }
-          ret <- uploadArbitraryDataURL session clonedGraphId (Just $ nowStr <> "-" <> "screenshot.png") screen
+          eClonedGraphId <- cloneGraph { id, hyperdataGraph: hyperdataGraph', session }
+          case eClonedGraphId of
+            Left err -> liftEffect $ log2 "[cameraButton] RESTError" err
+            Right clonedGraphId -> do
+              eRet <- uploadArbitraryDataURL session clonedGraphId (Just $ nowStr <> "-" <> "screenshot.png") screen
+              case eRet of
+                Left err -> liftEffect $ log2 "[cameraButton] RESTError" err
+                Right _ret -> do
                   liftEffect $ T2.reload reloadForest
-          pure ret
   , text: "Screenshot"
   }

src/Gargantext/Components/GraphExplorer/Sidebar.purs

@@ -2,33 +2,28 @@ module Gargantext.Components.GraphExplorer.Sidebar
   -- (Props, sidebar)
   where
 
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
 import Control.Parallel (parTraverse)
 import Data.Array (head, last, concat)
+import Data.Either (Either(..))
 import Data.Int (fromString)
 import Data.Map as Map
 import Data.Maybe (Maybe(..), fromJust)
 import Data.Sequence as Seq
 import Data.Set as Set
 import Effect (Effect)
-import Effect.Aff (Aff, launchAff_)
+import Effect.Aff (Aff, error, launchAff_)
 import Effect.Class (liftEffect)
-import Partial.Unsafe (unsafePartial)
-import Reactix as R
-import Reactix.DOM.HTML as RH
-import Reactix.DOM.HTML as H
-import Record as Record
-import Record.Extra as RX
-import Toestand as T
-
-import Gargantext.Prelude
-
-import Gargantext.Components.Lang (Lang(..))
-import Gargantext.Components.GraphExplorer.Types as GET
 import Gargantext.Components.GraphExplorer.Legend as Legend
+import Gargantext.Components.GraphExplorer.Types as GET
+import Gargantext.Components.Lang (Lang(..))
 import Gargantext.Components.NgramsTable.Core as NTC
 import Gargantext.Components.Nodes.Corpus.Graph.Tabs (tabs) as CGT
 import Gargantext.Components.RandomText (words)
 import Gargantext.Components.Search (SearchType(..), SearchQuery(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Data.Array (mapMaybe)
 import Gargantext.Ends (Frontends)
 import Gargantext.Hooks.Sigmax.Types as SigmaxT
@@ -36,6 +31,13 @@ import Gargantext.Sessions (Session)
 import Gargantext.Types (CTabNgramType, NodeID, TabSubType(..), TabType(..), TermList(..), modeTabType)
 import Gargantext.Utils.Reactix as R2
 import Gargantext.Utils.Toestand as T2
+import Partial.Unsafe (unsafePartial)
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Reactix.DOM.HTML as RH
+import Record as Record
+import Record.Extra as RX
+import Toestand as T
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.GraphExplorer.Sidebar"
@@ -318,13 +320,14 @@ type SendPatches =
   )
 
 sendPatches :: Record SendPatches -> Effect Unit
-sendPatches { graphId, metaData, nodes, session, termList, reloadForest } = do
+sendPatches { metaData, nodes, session, termList, reloadForest } = do
   launchAff_ do
-    patches <- (parTraverse (sendPatch termList session metaData) nodes) :: Aff (Array NTC.VersionedNgramsPatches)
+    patches <- (parTraverse (sendPatch termList session metaData) nodes) -- :: Aff (Array NTC.VersionedNgramsPatches)
     let mPatch = last patches
     case mPatch of
       Nothing -> pure unit
-      Just (NTC.Versioned patch) -> do
+      Just (Left _err) -> throwError $ error $ "[sendPatches] RESTError"
+      Just (Right (NTC.Versioned _patch)) -> do
         liftEffect $ T2.reload reloadForest
 
 -- Why is this called delete node?
@@ -332,11 +335,14 @@ sendPatch :: TermList
           -> Session
           -> GET.MetaData
           -> Record SigmaxT.Node
-          -> Aff NTC.VersionedNgramsPatches
+          -> Aff (Either RESTError NTC.VersionedNgramsPatches)
 sendPatch termList session (GET.MetaData metaData) node = do
-    ret  <- NTC.putNgramsPatches coreParams versioned
+    eRet  <- NTC.putNgramsPatches coreParams versioned
+    case eRet of
+      Left err -> pure $ Left err
+      Right ret -> do
         task <- NTC.postNgramsChartsAsync coreParams  -- TODO add task
-    pure ret
+        pure $ Right ret
   where
     nodeId :: NodeID
     nodeId = unsafePartial $ fromJust $ fromString node.id

src/Gargantext/Components/NgramsTable.purs

@@ -4,7 +4,10 @@ module Gargantext.Components.NgramsTable
   , mainNgramsTable
   ) where
 
+import Gargantext.Prelude
+
 import Data.Array as A
+import Data.Either (Either(..))
 import Data.FunctorWithIndex (mapWithIndex)
 import Data.Lens (Lens', to, (%~), (.~), (^.), (^?), view)
 import Data.Lens.At (at)
@@ -28,20 +31,18 @@ import Effect.Aff (Aff)
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
-
 import Unsafe.Coerce (unsafeCoerce)
 
-import Gargantext.Prelude
-
 import Gargantext.AsyncTasks as GAT
 import Gargantext.Components.AutoUpdate (autoUpdateElt)
-import Gargantext.Hooks.Loader (useLoader)
-import Gargantext.Components.Table as TT
-import Gargantext.Components.Table.Types as TT
 import Gargantext.Components.NgramsTable.Components as NTC
 import Gargantext.Components.NgramsTable.Core (Action(..), CoreAction(..), CoreState, Dispatch, NgramsElement(..), NgramsPatch(..), NgramsTable, NgramsTerm, PageParams, PatchMap(..), Version, Versioned(..), VersionedNgramsTable, VersionedWithCountNgramsTable, _NgramsElement, _NgramsRepoElement, _NgramsTable, _children, _list, _ngrams, _ngrams_repo_elements, _ngrams_scores, _occurrences, _root, addNewNgramA, applyNgramsPatches, applyPatchSet, chartsAfterSync, commitPatch, convOrderBy, coreDispatch, filterTermSize, fromNgramsPatches, ngramsRepoElementToNgramsElement, ngramsTermText, normNgram, patchSetFromMap, replace, rootsOf, singletonNgramsTablePatch, syncResetButtons, toVersioned)
 import Gargantext.Components.NgramsTable.Loader (useLoaderWithCacheAPI)
 import Gargantext.Components.Nodes.Lists.Types as NT
+import Gargantext.Components.Table as TT
+import Gargantext.Components.Table.Types as TT
+import Gargantext.Config.REST (RESTError)
+import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(..)) as R
 import Gargantext.Sessions (Session, get)
 import Gargantext.Types (CTabNgramType, OrderBy(..), SearchQuery, TabType, TermList(..), TermSize, termLists, termSizes)
@@ -113,7 +114,6 @@ type TableContainerProps =
 
 tableContainer :: Record TableContainerProps -> Record TT.TableContainerProps -> R.Element
 tableContainer p q = R.createElement (tableContainerCpt p) q []
-
 tableContainerCpt :: Record TableContainerProps -> R.Component TT.TableContainerProps
 tableContainerCpt { dispatch
                   , ngramsChildren
@@ -277,7 +277,6 @@ type Props =
 
 loadedNgramsTable :: R2.Component Props
 loadedNgramsTable = R.createElement loadedNgramsTableCpt
-
 loadedNgramsTableCpt :: R.Component Props
 loadedNgramsTableCpt = here.component "loadedNgramsTable" cpt where
   cpt props@{ afterSync
@@ -534,7 +533,6 @@ type MainNgramsTableProps = (
 
 mainNgramsTable :: R2.Component MainNgramsTableProps
 mainNgramsTable = R.createElement mainNgramsTableCpt
-
 mainNgramsTableCpt :: R.Component MainNgramsTableProps
 mainNgramsTableCpt = here.component "mainNgramsTable" cpt
   where
@@ -588,7 +586,7 @@ mainNgramsTableCpt = here.component "mainNgramsTable" cpt
     versionEndpoint { defaultListId, path: { nodeId, tabType, session } } _ = get session $ R.GetNgramsTableVersion { listId: defaultListId, tabType } (Just nodeId)
 
     -- NOTE With cache off
-    loader :: PageParams -> Aff VersionedWithCountNgramsTable
+    loader :: PageParams -> Aff (Either RESTError VersionedWithCountNgramsTable)
     loader path@{ listIds
                 , nodeId
                 , params: { limit, offset, orderBy }

src/Gargantext/Components/NgramsTable/API.purs

 module Gargantext.Components.NgramsTable.API where
 
+import Data.Either (Either)
 import Effect.Aff (Aff)
+
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes as GR
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types as GT
@@ -13,5 +16,6 @@ type UpdateNodeListParams =
   , session :: Session
   )
 
-updateNodeList :: Record UpdateNodeListParams -> Aff Int
-updateNodeList { listId, nodeId, nodeType, session } = post session (GR.RecomputeNgrams nodeType nodeId listId) {}
+updateNodeList :: Record UpdateNodeListParams -> Aff (Either RESTError Int)
+updateNodeList { listId, nodeId, nodeType, session } =
+  post session (GR.RecomputeNgrams nodeType nodeId listId) {}

src/Gargantext/Components/NgramsTable/Core.purs

@@ -12,7 +12,7 @@ module Gargantext.Components.NgramsTable.Core
   , NgramsPatch(..)
   , NgramsPatches
   , _NgramsTable
-  , NgramsTerm
+  , NgramsTerm(..)
   , normNgram
   , ngramsTermText
   , findNgramRoot
@@ -23,7 +23,7 @@ module Gargantext.Components.NgramsTable.Core
   , VersionedWithCount(..)
   , toVersioned
   , VersionedNgramsPatches
-  , AsyncNgramsChartsUpdate
+  , AsyncNgramsChartsUpdate(..)
   , VersionedNgramsTable
   , VersionedWithCountNgramsTable
   , NgramsTablePatch
@@ -79,18 +79,18 @@ module Gargantext.Components.NgramsTable.Core
   )
   where
 
+import Gargantext.Prelude
+
+import Control.Monad.Error.Class (throwError)
 import Control.Monad.State (class MonadState, execState)
 import Data.Array (head)
 import Data.Array as A
 import Data.Bifunctor (lmap)
 import Data.Either (Either(..))
+import Data.Eq.Generic (genericEq)
 import Data.Foldable (class Foldable, foldMap, foldl, foldr)
 import Data.FoldableWithIndex (class FoldableWithIndex, foldMapWithIndex, foldlWithIndex, foldrWithIndex)
---import Data.FunctorWithIndex (class FunctorWithIndex, mapWithIndex)
 import Data.Generic.Rep (class Generic)
-import Data.Eq.Generic (genericEq)
-import Data.Ord.Generic (genericCompare)
-import Data.Show.Generic (genericShow)
 import Data.Lens (Iso', Lens', use, view, (%=), (%~), (.~), (?=), (^?))
 import Data.Lens.At (class At, at)
 import Data.Lens.Common (_Just)
@@ -103,11 +103,12 @@ import Data.List as L
 import Data.Map (Map)
 import Data.Map as Map
 import Data.Maybe (Maybe(..), fromMaybe, fromMaybe', isJust)
-import Data.Monoid (class Monoid)
 import Data.Monoid.Additive (Additive(..))
 import Data.Newtype (class Newtype)
+import Data.Ord.Generic (genericCompare)
 import Data.Set (Set)
 import Data.Set as Set
+import Data.Show.Generic (genericShow)
 import Data.String as S
 import Data.String.Common as DSC
 import Data.String.Regex (Regex, regex, replace) as R
@@ -117,35 +118,33 @@ import Data.Symbol (SProxy(..))
 import Data.These (These(..))
 import Data.Traversable (for, traverse_, traverse)
 import Data.TraversableWithIndex (traverseWithIndex)
-import Data.Tuple (Tuple(..), snd)
+import Data.Tuple (Tuple(..))
 import Data.Tuple.Nested ((/\))
-import DOM.Simple.Console (log, log2)
-import Effect.Aff (Aff, launchAff_)
+import DOM.Simple.Console (log2)
 import Effect (Effect)
+import Effect.Aff (Aff, error, launchAff_)
 import Effect.Class (liftEffect)
 import Effect.Exception.Unsafe (unsafeThrow)
+import FFI.Simple.Functions (delay)
 import Foreign as F
 import Foreign.Object as FO
-import FFI.Simple.Functions (delay)
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Record as Record
 import Partial (crashWith)
 import Partial.Unsafe (unsafePartial)
+import Reactix as R
+import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
 import Toestand as T
 
-import Gargantext.Prelude
-
 import Gargantext.AsyncTasks as GAT
 import Gargantext.Components.Table as T
 import Gargantext.Components.Table.Types as T
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, get, post, put)
-import Gargantext.Types (AsyncTaskType(..), AsyncTaskWithType(..), CTabNgramType(..), ListId, OrderBy(..), ScoreType(..), TabSubType(..), TabType(..), TermList(..), TermSize(..))
+import Gargantext.Types (AsyncTask, AsyncTaskType(..), AsyncTaskWithType(..), CTabNgramType(..), ListId, OrderBy(..), ScoreType(..), TabSubType(..), TabType(..), TermList(..), TermSize(..))
+import Gargantext.Utils.Either (eitherMap)
 import Gargantext.Utils.KarpRabin (indicesOfAny)
 import Gargantext.Utils.Reactix as R2
-import Gargantext.Utils.Toestand as T2
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.NgramsTable.Core"
@@ -905,7 +904,7 @@ setTermListP ngram patch_list = singletonNgramsTablePatch ngram pe
 setTermListA :: NgramsTerm -> Replace TermList -> CoreAction
 setTermListA ngram termList = CommitPatch $ setTermListP ngram termList
 
-putNgramsPatches :: forall s. CoreParams s -> VersionedNgramsPatches -> Aff VersionedNgramsPatches
+putNgramsPatches :: forall s. CoreParams s -> VersionedNgramsPatches -> Aff (Either RESTError VersionedNgramsPatches)
 putNgramsPatches { listIds, nodeId, session, tabType } = put session putNgrams
   where putNgrams = PutNgrams tabType (head listIds) Nothing (Just nodeId)
 
@@ -918,7 +917,10 @@ syncPatches props state callback = do
   when (isEmptyNgramsTablePatch ngramsStagePatch) $ do
     let pt = Versioned { data: ngramsPatches, version: ngramsVersion }
     launchAff_ $ do
-      Versioned { data: newPatch, version: newVersion } <- putNgramsPatches props pt
+      ePatches <- putNgramsPatches props pt
+      case ePatches of
+        Left err -> liftEffect $ log2 "[syncPatches] RESTError" err
+        Right (Versioned { data: newPatch, version: newVersion }) -> do
           callback unit
           liftEffect $ do
             log2 "[syncPatches] setting state, newVersion" newVersion
@@ -967,7 +969,7 @@ commitPatch tablePatch state = do
   T.modify_ (\s -> s { ngramsLocalPatch = tablePatch <> s.ngramsLocalPatch }) state
     -- First we apply the patches we have locally and then the new patch (tablePatch).
 
-loadNgramsTable :: PageParams -> Aff VersionedNgramsTable
+loadNgramsTable :: PageParams -> Aff (Either RESTError VersionedNgramsTable)
 loadNgramsTable
   { nodeId, listIds, termListFilter, termSizeFilter, session, scoreType
   , searchQuery, tabType, params: {offset, limit, orderBy}}
@@ -986,7 +988,7 @@ loadNgramsTable
 
 type NgramsListByTabType = Map TabType VersionedNgramsTable
 
-loadNgramsTableAll :: PageParams -> Aff NgramsListByTabType
+loadNgramsTableAll :: PageParams -> Aff (Either RESTError NgramsListByTabType)
 loadNgramsTableAll { nodeId, listIds, session, scoreType } = do
   let
     cTagNgramTypes =
@@ -997,11 +999,13 @@ loadNgramsTableAll { nodeId, listIds, session, scoreType } = do
       ]
     query tabType = GetNgramsTableAll { listIds, tabType } (Just nodeId)
 
-  Map.fromFoldable <$> for cTagNgramTypes \cTagNgramType -> do
+  ret <- Map.fromFoldable <$> for cTagNgramTypes \cTagNgramType -> do
     let tabType = TabCorpus $ TabNgramType cTagNgramType
-    result :: VersionedNgramsTable <- get session $ query tabType
+    result :: Either RESTError VersionedNgramsTable <- get session $ query tabType
     pure $ Tuple tabType result
 
+  pure $ eitherMap ret
+
 convOrderBy :: T.OrderByDirection T.ColumnName -> OrderBy
 convOrderBy (T.ASC  (T.ColumnName "Score")) = ScoreAsc
 convOrderBy (T.DESC (T.ColumnName "Score")) = ScoreDesc
@@ -1124,8 +1128,10 @@ chartsAfterSync path'@{ nodeId } tasks _ = do
 
 postNgramsChartsAsync :: forall s. CoreParams s -> Aff AsyncTaskWithType
 postNgramsChartsAsync { listIds, nodeId, session, tabType } = do
-    task <- post session putNgramsAsync acu
-    pure $ AsyncTaskWithType { task, typ: UpdateNgramsCharts }
+    eTask :: Either RESTError AsyncTask <- post session putNgramsAsync acu
+    case eTask of
+      Left _err -> liftEffect $ throwError $ error "[postNgramsChartsAsync] RESTError"
+      Right task -> pure $ AsyncTaskWithType { task, typ: UpdateNgramsCharts }
   where
     acu = AsyncNgramsChartsUpdate { listId: head listIds
                                   , tabType }

src/Gargantext/Components/NgramsTable/Loader.purs

 module Gargantext.Components.NgramsTable.Loader where
 
+import Gargantext.Prelude
+
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..), maybe, isJust)
-import Data.Tuple (fst)
-import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff, launchAff_, throwError)
 import Effect.Class (liftEffect)
 import Effect.Exception (error)
-import Reactix as R
-import Simple.JSON as JSON
-import Toestand as T
-
-import Gargantext.Prelude
-
 import Gargantext.Components.LoadingSpinner (loadingSpinner)
 import Gargantext.Components.NgramsTable.Core (Version, Versioned(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Utils.CacheAPI as GUC
+import Reactix as R
+import Simple.JSON as JSON
+import Toestand as T
 
 
 cacheName :: String
@@ -26,7 +25,7 @@ clearCache _ = GUC.delete $ GUC.CacheName cacheName
 
 
 type LoaderWithCacheAPIProps path res ret = (
-    cacheEndpoint :: path -> Aff Version
+    cacheEndpoint :: path -> Aff (Either RESTError Version)
   , handleResponse :: Versioned res -> ret
   , mkRequest :: path -> GUC.Request
   , path :: path
@@ -49,7 +48,7 @@ useLoaderWithCacheAPI { cacheEndpoint, handleResponse, mkRequest, path, renderer
   pure $ maybe (loadingSpinner {}) renderer state'
 
 type LoaderWithCacheAPIEffectProps path res ret = (
-    cacheEndpoint  :: path -> Aff Version
+    cacheEndpoint  :: path -> Aff (Either RESTError Version)
   , handleResponse :: Versioned res -> ret
   , mkRequest      :: path -> GUC.Request
   , path           :: path
@@ -79,7 +78,10 @@ useCachedAPILoaderEffect { cacheEndpoint
         cache <- GUC.openCache $ GUC.CacheName cacheName
         -- TODO Parallelize?
         vr@(Versioned { version, "data": d }) <- GUC.cachedJson cache req
-        cacheReal <- cacheEndpoint path
+        eCacheReal <- cacheEndpoint path
+        case eCacheReal of
+          Left err -> throwError $ error $ "[useCachedAPILoaderEffect] RESTError"
+          Right cacheReal -> do
             val <- if version == cacheReal then
               pure vr
             else do
@@ -92,6 +94,6 @@ useCachedAPILoaderEffect { cacheEndpoint
               if version' == cacheReal then
                pure vr'
               else
-            throwError $ error $ "[NgramsTable.Loader] Fetched clean cache but hashes don't match: " <> show version <> " != " <> show cacheReal
+                throwError $ error $ "[useCachedAPILoaderEffect] Fetched clean cache but hashes don't match: " <> show version <> " != " <> show cacheReal
             liftEffect $ do
               T.write_ (Just $ handleResponse val) state

src/Gargantext/Components/Nodes/Annuaire.purs

@@ -3,6 +3,7 @@ module Gargantext.Components.Nodes.Annuaire
  where
 
 import Data.Array as A
+import Data.Either (Either)
 import Data.Generic.Rep (class Generic)
 import Data.Eq.Generic (genericEq)
 import Data.Maybe (Maybe(..), maybe, fromMaybe)
@@ -23,12 +24,13 @@ import Gargantext.Components.Nodes.Annuaire.User.Contacts.Types as CT
 import Gargantext.Components.Nodes.Lists.Types as NT
 import Gargantext.Components.Table (defaultContainer, initialParams, makeRow, table, tableHeaderLayout) as TT
 import Gargantext.Components.Table.Types (ColumnName(..), Params) as TT
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (url, Frontends)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Routes as Routes
 import Gargantext.Sessions (Session, sessionId, get)
-import Gargantext.Types (NodeType(..), AffTableResult, TableResult)
+import Gargantext.Types (NodeType(..), AffETableResult, TableResult)
 import Gargantext.Utils.Reactix as R2
 
 here :: R2.Here
@@ -120,7 +122,6 @@ annuaireCpt = here.component "annuaire" cpt
           , pageLayout { info, session, pagePath, frontends} ]
       where
         date = "Last update: " <> date'
-        style = {width: "250px", display: "inline-block"}
         initialPagePath nodeId = {nodeId, params: TT.initialParams}
 
 type PagePath = { nodeId :: Int, params :: TT.Params }
@@ -138,7 +139,7 @@ pageLayout props = R.createElement pageLayoutCpt props []
 pageLayoutCpt :: R.Component PageLayoutProps
 pageLayoutCpt = here.component "pageLayout" cpt
   where
-    cpt { info, frontends, pagePath, session } _ = do
+    cpt { frontends, pagePath, session } _ = do
       pagePath' <- T.useLive T.unequal pagePath
 
       useLoader pagePath' (loadPage session) $
@@ -175,7 +176,7 @@ pageCpt = here.component "page" cpt
                       }
       where
         rows pagePath' = (row pagePath') <$> Seq.fromFoldable docs
-        row pagePath'@{ nodeId } contact = { row: contactCells { annuaireId: nodeId, frontends, contact, session }
+        row { nodeId } contact = { row: contactCells { annuaireId: nodeId, frontends, contact, session }
                                  , delete: false }
         container = TT.defaultContainer { title: "Annuaire" } -- TODO
         colNames = TT.ColumnName <$> [ "", "First Name", "Last Name", "Company", "Role"]
@@ -194,9 +195,8 @@ contactCells :: Record ContactCellsProps -> R.Element
 contactCells p = R.createElement contactCellsCpt p []
 contactCellsCpt :: R.Component ContactCellsProps
 contactCellsCpt = here.component "contactCells" cpt where
-  cpt { annuaireId, frontends, session
-      , contact: CT.NodeContact
-        { id, hyperdata: CT.HyperdataContact { who : Nothing }}} _ =
+  cpt { contact: CT.NodeContact
+        { hyperdata: CT.HyperdataContact { who : Nothing } } } _ =
     pure $ TT.makeRow
     [ H.text ""
     , H.span {} [ H.text "Name" ]
@@ -224,9 +224,6 @@ contactCellsCpt = here.component "contactCells" cpt where
         --     H.text $ maybe "No ContactWhereRole" contactWhereRole (A.head $ ou)
       ]
       where
-        --nodepath = NodePath (sessionId session) NodeContact (Just id)
-        nodepath = Routes.ContactPage (sessionId session) annuaireId id
-        href = url frontends nodepath
         contactUrl aId id' = url frontends $ Routes.ContactPage (sessionId session) aId id'
         contactWhereOrg (CT.ContactWhere { organization: [] }) = "No Organization"
         contactWhereOrg (CT.ContactWhere { organization: orga }) =
@@ -234,8 +231,6 @@ contactCellsCpt = here.component "contactCells" cpt where
         contactWhereDept (CT.ContactWhere { labTeamDepts : [] }) = "Empty Dept"
         contactWhereDept (CT.ContactWhere { labTeamDepts : dept }) =
           fromMaybe "No Dept (list)" (A.head dept)
-        contactWhereRole (CT.ContactWhere { role: Nothing }) = "Empty Role"
-        contactWhereRole (CT.ContactWhere { role: Just role }) = role
 
 newtype HyperdataAnnuaire = HyperdataAnnuaire
   { title :: Maybe String
@@ -278,8 +273,8 @@ instance JSON.ReadForeign AnnuaireInfo where
 
 ------------------------------------------------------------------------
 
-loadPage :: Session -> PagePath -> AffTableResult CT.NodeContact
-loadPage session {nodeId, params: { offset, limit, orderBy }} =
+loadPage :: Session -> PagePath -> AffETableResult CT.NodeContact
+loadPage session {nodeId, params: { offset, limit }} =
     get session children
  -- TODO orderBy
  -- where
@@ -291,6 +286,6 @@ loadPage session {nodeId, params: { offset, limit, orderBy }} =
   where
     children = Children NodeContact offset limit Nothing {-(convOrderBy <$> orderBy)-} (Just nodeId)
 
-getAnnuaireInfo :: Session -> Int -> Aff AnnuaireInfo
+getAnnuaireInfo :: Session -> Int -> Aff (Either RESTError AnnuaireInfo)
 getAnnuaireInfo session id = get session (NodeAPI Node (Just id) "")
 

src/Gargantext/Components/Nodes/Annuaire/User.purs

@@ -4,7 +4,7 @@ module Gargantext.Components.Nodes.Annuaire.User
   )
   where
 
-import Gargantext.Prelude (Unit, bind, discard, pure, show, ($), (<$>), (<<<), (<>))
+import Data.Either (Either(..))
 import Data.Lens as L
 import Data.Maybe (Maybe(..), fromMaybe)
 import Effect (Effect)
@@ -14,12 +14,15 @@ import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
 
+import Gargantext.Prelude
+
 import Gargantext.AsyncTasks as GAT
 import Gargantext.Components.InputWithEnter (inputWithEnter)
 import Gargantext.Components.Nodes.Annuaire.User.Contacts.Types (Contact(..), ContactData, ContactTouch(..), ContactWhere(..), ContactWho(..), HyperdataContact(..), HyperdataUser(..), _city, _country, _firstName, _labTeamDeptsJoinComma, _lastName, _mail, _office, _organizationJoinComma, _ouFirst, _phone, _role, _shared, _touch, _who, defaultContactTouch, defaultContactWhere, defaultContactWho, defaultHyperdataContact, defaultHyperdataUser)
 import Gargantext.Components.Nodes.Annuaire.Tabs as Tabs
 import Gargantext.Components.Nodes.Lists.Types as LT
 import Gargantext.Components.Nodes.Texts.Types as TT
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (Frontends)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes as Routes
@@ -91,7 +94,6 @@ type ContactInfoItemProps =
 
 contactInfoItem :: Record ContactInfoItemProps -> R.Element
 contactInfoItem props = R.createElement contactInfoItemCpt props []
-
 contactInfoItemCpt :: R.Component ContactInfoItemProps
 contactInfoItemCpt = here.component "contactInfoItem" cpt
   where
@@ -172,7 +174,6 @@ type KeyLayoutProps = (
 
 userLayout :: R2.Component LayoutProps
 userLayout = R.createElement userLayoutCpt
-
 userLayoutCpt :: R.Component LayoutProps
 userLayoutCpt = here.component "userLayout" cpt
   where
@@ -200,7 +201,6 @@ userLayoutCpt = here.component "userLayout" cpt
 
 userLayoutWithKey :: Record KeyLayoutProps -> R.Element
 userLayoutWithKey props = R.createElement userLayoutWithKeyCpt props []
-
 userLayoutWithKeyCpt :: R.Component KeyLayoutProps
 userLayoutWithKeyCpt = here.component "userLayoutWithKey" cpt
   where
@@ -243,9 +243,9 @@ userLayoutWithKeyCpt = here.component "userLayoutWithKey" cpt
             liftEffect $ T2.reload reload
 
 -- | toUrl to get data XXX
-getContact :: Session -> Int -> Aff ContactData
+getContact :: Session -> Int -> Aff (Either RESTError ContactData)
 getContact session id = do
-  contactNode :: Contact <- get session $ Routes.NodeAPI Node (Just id) ""
+  eContactNode <- get session $ Routes.NodeAPI Node (Just id) ""
   -- TODO: we need a default list for the pairings
   --defaultListIds <- get $ toUrl endConfigStateful Back (Children NodeList 0 1 Nothing) $ Just id
   --case (head defaultListIds :: Maybe (NodePoly HyperdataList)) of
@@ -253,14 +253,14 @@ getContact session id = do
   --    pure {contactNode, defaultListId}
   --  Nothing ->
   --    throwError $ error "Missing default list"
-  pure {contactNode, defaultListId: 424242}
+  pure $ (\contactNode -> { contactNode, defaultListId: 424242 }) <$> eContactNode
 
 getUserWithReload :: { nodeId :: Int
                      , reload :: T2.Reload
-                     , session :: Session} -> Aff ContactData
+                     , session :: Session} -> Aff (Either RESTError ContactData)
 getUserWithReload {nodeId, session} = getContact session nodeId
 
-saveContactHyperdata :: Session -> Int -> HyperdataUser -> Aff Int
+saveContactHyperdata :: Session -> Int -> HyperdataUser -> Aff (Either RESTError Int)
 saveContactHyperdata session id h = do
   put session (Routes.NodeAPI Node (Just id) "") h
 

src/Gargantext/Components/Nodes/Annuaire/User/Contact.purs

@@ -3,11 +3,9 @@ module Gargantext.Components.Nodes.Annuaire.User.Contact
   , contactLayout
   ) where
 
-import Gargantext.Prelude
-  ( Unit, bind, const, discard, pure, show, ($), (<$>), (*>), (<<<), (<>) )
+import Data.Either (Either)
 import Data.Lens as L
 import Data.Maybe (Maybe(..), fromMaybe)
-import Data.Tuple.Nested ((/\))
 import Effect (Effect)
 import Effect.Aff (Aff, launchAff_)
 import Effect.Class (liftEffect)
@@ -15,6 +13,8 @@ import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
 
+import Gargantext.Prelude
+
 import Gargantext.AsyncTasks as GAT
 import Gargantext.Components.InputWithEnter (inputWithEnter)
 import Gargantext.Components.Nodes.Annuaire.User.Contacts.Tabs as Tabs
@@ -27,6 +27,7 @@ import Gargantext.Components.Nodes.Annuaire.User.Contacts.Types
   , defaultContactWho, defaultHyperdataContact, defaultHyperdataUser )
 import Gargantext.Components.Nodes.Lists.Types as LT
 import Gargantext.Components.Nodes.Texts.Types as TT
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (Frontends)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes as Routes
@@ -138,9 +139,6 @@ contactInfoItemCpt = here.component "contactInfoItem" cpt
               let newHyperdata = (L.over cLens (\_ -> R.readRef valueRef) hyperdata) :: HyperdataContact
               onUpdateHyperdata newHyperdata
 
-listElement :: Array R.Element -> R.Element
-listElement = H.li { className: "list-group-item justify-content-between" }
-
 type BasicProps =
   ( frontends      :: Frontends
   , nodeId         :: Int
@@ -159,7 +157,7 @@ type LayoutProps = ( session :: Session | ReloadProps )
 
 type KeyLayoutProps = ( key :: String, session :: Session | ReloadProps )
 
-saveContactHyperdata :: Session -> Int -> HyperdataContact -> Aff Int
+saveContactHyperdata :: Session -> Int -> HyperdataContact -> Aff (Either RESTError Int)
 saveContactHyperdata session id = put session (Routes.NodeAPI Node (Just id) "")
 
 type AnnuaireLayoutProps = ( annuaireId :: Int, session :: Session | ReloadProps )
@@ -234,9 +232,9 @@ contactLayoutWithKeyCpt = here.component "contactLayoutWithKey" cpt where
           launchAff_ $
             saveContactHyperdata session nodeId hd *> liftEffect (T2.reload reload)
 
-getAnnuaireContact :: Session -> Int -> Int -> Aff ContactData'
+getAnnuaireContact :: Session -> Int -> Int -> Aff (Either RESTError ContactData')
 getAnnuaireContact session annuaireId id = do
-  contactNode :: Contact' <- get session $ Routes.NodeAPI Annuaire (Just annuaireId) $ show id
+  eContactNode <- get session $ Routes.NodeAPI Annuaire (Just annuaireId) $ show id
   -- TODO: we need a default list for the pairings
   --defaultListIds <- get $ toUrl endConfigStateful Back (Children NodeList 0 1 Nothing) $ Just id
   --case (head defaultListIds :: Maybe (NodePoly HyperdataList)) of
@@ -244,4 +242,4 @@ getAnnuaireContact session annuaireId id = do
   --    pure {contactNode, defaultListId}
   --  Nothing ->
   --    throwError $ error "Missing default list"
-  pure {contactNode, defaultListId: 424242}
+  pure $ (\contactNode -> { contactNode, defaultListId: 424242 }) <$> eContactNode

src/Gargantext/Components/Nodes/Corpus.purs

@@ -2,12 +2,11 @@ module Gargantext.Components.Nodes.Corpus where
 
 import Data.Array as A
 import Data.Either (Either(..))
-import Data.Generic.Rep (class Generic)
 import Data.Eq.Generic (genericEq)
-import Data.Show.Generic (genericShow)
+import Data.Generic.Rep (class Generic)
 import Data.List as List
 import Data.Maybe (Maybe(..), fromMaybe)
-import Data.Tuple (Tuple(..))
+import Data.Show.Generic (genericShow)
 import DOM.Simple.Console (log2)
 import Effect (Effect)
 import Effect.Aff (Aff, launchAff_, throwError)
@@ -25,12 +24,13 @@ import Gargantext.Components.InputWithEnter (inputWithEnter)
 import Gargantext.Components.Node (NodePoly(..), HyperdataList)
 import Gargantext.Components.Nodes.Corpus.Types (CorpusData, Hyperdata(..))
 import Gargantext.Components.Nodes.Types (FTField, FTFieldList(..), FTFieldWithIndex, FTFieldsWithIndex(..), Field(..), FieldType(..), Hash, Index, defaultField, defaultHaskell', defaultJSON', defaultMarkdown', defaultPython')
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Data.Array as GDA
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Prelude (class Eq, class Show, Unit, bind, discard, pure, show, unit, ($), (+), (-), (<), (<$>), (<<<), (<>), (==), (>))
 import Gargantext.Routes (SessionRoute(Children, NodeAPI))
 import Gargantext.Sessions (Session, get, put, sessionId)
-import Gargantext.Types (AffTableResult, NodeType(..))
+import Gargantext.Types (AffETableResult, NodeType(..))
 import Gargantext.Utils.Crypto as Crypto
 import Gargantext.Utils.Reactix as R2
 import Gargantext.Utils.Toestand as T2
@@ -172,10 +172,14 @@ corpusLayoutViewCpt = here.component "corpusLayoutView" cpt
                              , session :: Session } -> e -> Effect Unit
     onClickSave {fields: FTFieldsWithIndex fields, nodeId, reload, session} _ = do
       launchAff_ do
-        saveCorpus $ { hyperdata: Hyperdata {fields: FTFieldList $ (_.ftField) <$> fields}
+        res <- saveCorpus $ { hyperdata: Hyperdata {fields: FTFieldList $ (_.ftField) <$> fields}
                             , nodeId
                             , session }
-        liftEffect $ T2.reload reload
+        liftEffect $ do
+          _ <- case res of
+                Left err -> log2 "[corpusLayoutView] onClickSave RESTError" err
+                _ -> pure unit
+          T2.reload reload
 
     onClickAdd :: forall e. T.Box FTFieldsWithIndex -> e -> Effect Unit
     onClickAdd fieldsS _ = do
@@ -453,11 +457,11 @@ type LoadProps =
   , session :: Session
   )
 
-loadCorpus' :: Record LoadProps -> Aff (NodePoly Hyperdata)
+loadCorpus' :: Record LoadProps -> Aff (Either RESTError (NodePoly Hyperdata))
 loadCorpus' {nodeId, session} = get session $ NodeAPI Corpus (Just nodeId) ""
 
 -- Just to make reloading effective
-loadCorpusWithReload :: { reload :: T2.Reload  | LoadProps } -> Aff (NodePoly Hyperdata)
+loadCorpusWithReload :: { reload :: T2.Reload  | LoadProps } -> Aff (Either RESTError (NodePoly Hyperdata))
 loadCorpusWithReload {nodeId, session} = loadCorpus' {nodeId, session}
 
 type SaveProps = (
@@ -465,39 +469,67 @@ type SaveProps = (
   | LoadProps
   )
 
-saveCorpus :: Record SaveProps -> Aff Unit
+saveCorpus :: Record SaveProps -> Aff (Either RESTError Int)
 saveCorpus {hyperdata, nodeId, session} = do
-  _id <- (put session (NodeAPI Corpus (Just nodeId) "") hyperdata) :: Aff Int
-  pure unit
+  put session (NodeAPI Corpus (Just nodeId) "") hyperdata
 
-loadCorpus :: Record LoadProps -> Aff CorpusData
+loadCorpus :: Record LoadProps -> Aff (Either RESTError CorpusData)
 loadCorpus {nodeId, session} = do
   -- fetch corpus via lists parentId
-  (NodePoly {parentId: corpusId} :: NodePoly {}) <- get session nodePolyRoute
-  corpusNode     <-  get session $ corpusNodeRoute     corpusId ""
-  defaultListIds <- (get session $ defaultListIdsRoute corpusId)
-                    :: forall a. JSON.ReadForeign a => AffTableResult (NodePoly a)
+  res <- get session nodePolyRoute
+  case res of
+    Left err -> pure $ Left err
+    Right (NodePoly {parentId: corpusId} :: NodePoly {}) -> do
+      eCorpusNode     <-  get session $ corpusNodeRoute     corpusId ""
+      eDefaultListIds <- (get session $ defaultListIdsRoute corpusId)
+                      :: forall a. JSON.ReadForeign a => AffETableResult (NodePoly a)
+      case eCorpusNode of
+        Left err -> pure $ Left err
+        Right corpusNode -> do
+          case eDefaultListIds of
+            Left err -> pure $ Left err
+            Right defaultListIds -> do
               case (A.head defaultListIds.docs :: Maybe (NodePoly HyperdataList)) of
                 Just (NodePoly { id: defaultListId }) ->
-      pure {corpusId, corpusNode, defaultListId}
+                  pure $ Right { corpusId, corpusNode, defaultListId }
                 Nothing ->
                   throwError $ error "Missing default list"
+
+--  (NodePoly {parentId: corpusId} :: NodePoly {}) <- get session nodePolyRoute
+--  corpusNode     <-  get session $ corpusNodeRoute     corpusId ""
+--  defaultListIds <- (get session $ defaultListIdsRoute corpusId)
+--                    :: forall a. JSON.ReadForeign a => AffTableResult (NodePoly a)
+--  case (A.head defaultListIds.docs :: Maybe (NodePoly HyperdataList)) of
+--    Just (NodePoly { id: defaultListId }) ->
+--      pure {corpusId, corpusNode, defaultListId}
+--    Nothing ->
+--      throwError $ error "Missing default list"
   where
     nodePolyRoute       = NodeAPI Corpus (Just nodeId) ""
     corpusNodeRoute     = NodeAPI Corpus <<< Just
     defaultListIdsRoute = Children NodeList 0 1 Nothing <<< Just
 
 
-loadCorpusWithChild :: Record LoadProps -> Aff CorpusData
+loadCorpusWithChild :: Record LoadProps -> Aff (Either RESTError CorpusData)
 loadCorpusWithChild { nodeId: childId, session } = do
   -- fetch corpus via lists parentId
-  (NodePoly {parentId: corpusId} :: NodePoly {}) <- get session $ listNodeRoute childId ""
-  corpusNode     <-  get session $ corpusNodeRoute     corpusId ""
-  defaultListIds <- (get session $ defaultListIdsRoute corpusId)
-                    :: forall a. JSON.ReadForeign a => AffTableResult (NodePoly a)
+  eListNode <- get session $ listNodeRoute childId ""
+  case eListNode of
+    Left err -> pure $ Left err
+    Right listNode -> do
+      let (NodePoly {parentId: corpusId} :: NodePoly {}) = listNode
+      eCorpusNode     <-  get session $ corpusNodeRoute     corpusId ""
+      case eCorpusNode of
+        Left err -> pure $ Left err
+        Right corpusNode -> do
+          eDefaultListIds <- (get session $ defaultListIdsRoute corpusId)
+                             :: forall a. JSON.ReadForeign a => AffETableResult (NodePoly a)
+          case eDefaultListIds of
+            Left err -> pure $ Left err
+            Right defaultListIds -> do
               case (A.head defaultListIds.docs :: Maybe (NodePoly HyperdataList)) of
                 Just (NodePoly { id: defaultListId }) ->
-      pure { corpusId, corpusNode, defaultListId }
+                  pure $ Right { corpusId, corpusNode, defaultListId }
                 Nothing ->
                   throwError $ error "Missing default list"
   where
@@ -514,7 +546,7 @@ type LoadWithReloadProps =
 
 
 -- Just to make reloading effective
-loadCorpusWithChildAndReload :: Record LoadWithReloadProps -> Aff CorpusData
+loadCorpusWithChildAndReload :: Record LoadWithReloadProps -> Aff (Either RESTError CorpusData)
 loadCorpusWithChildAndReload {nodeId, reload, session} = loadCorpusWithChild {nodeId, session}
 
 data ViewType = Code | Folders

src/Gargantext/Components/Nodes/Corpus/Chart/API.purs

 module Gargantext.Components.Nodes.Corpus.Chart.API where
 
+import Data.Either (Either)
 import Effect.Aff (Aff)
 
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, post)
 import Gargantext.Types as T
 
-
-recomputeChart :: Session -> T.ChartType -> T.CTabNgramType -> Int -> Int -> Aff (Array Int)
+recomputeChart :: Session -> T.ChartType -> T.CTabNgramType -> Int -> Int -> Aff (Either RESTError (Array Int))
 recomputeChart session chartType ngramType corpusId listId =
   post session (RecomputeListChart chartType ngramType corpusId listId) {}

src/Gargantext/Components/Nodes/Corpus/Chart/Common.purs

 module Gargantext.Components.Nodes.Corpus.Chart.Common where
 
-import Data.Tuple (fst)
+import Data.Either (Either)
 import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff)
 import Reactix as R
@@ -10,6 +10,7 @@ import Toestand as T
 import Gargantext.Prelude
 
 import Gargantext.Components.Nodes.Corpus.Chart.Types (MetricsProps, ReloadPath)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (HashedResponse, useLoader, useLoaderWithCacheAPI)
 import Gargantext.Utils.Crypto (Hash)
 import Gargantext.Sessions (Session)
@@ -20,7 +21,7 @@ here :: R2.Here
 here = R2.here "Gargantext.Components.Nodes.Corpus.Chart.Common"
 
 type MetricsLoadViewProps a = (
-    getMetrics :: Session -> ReloadPath -> Aff a
+    getMetrics :: Session -> ReloadPath -> Aff (Either RESTError a)
   , loaded :: Record MetricsProps -> a -> R.Element
   | MetricsProps
   )
@@ -30,7 +31,6 @@ cacheName = "metrics"
 
 metricsLoadView :: forall a. Eq a => Record (MetricsLoadViewProps a) -> R.Element
 metricsLoadView p = R.createElement metricsLoadViewCpt p []
-
 metricsLoadViewCpt :: forall a. Eq a => R.Component (MetricsLoadViewProps a)
 metricsLoadViewCpt = here.component "metricsLoadView" cpt
   where
@@ -41,7 +41,7 @@ metricsLoadViewCpt = here.component "metricsLoadView" cpt
         loaded { path, reload, session, onClick, onInit } l
 
 type MetricsWithCacheLoadViewProps res ret = (
-    getMetricsHash :: Session -> ReloadPath -> Aff Hash
+    getMetricsHash :: Session -> ReloadPath -> Aff (Either RESTError Hash)
   , handleResponse :: HashedResponse res -> ret
   , loaded :: Record MetricsProps -> ret -> R.Element
   , mkRequest :: ReloadPath -> GUC.Request
@@ -52,7 +52,6 @@ metricsWithCacheLoadView :: forall res ret.
                             Eq ret => JSON.ReadForeign res =>
                             Record (MetricsWithCacheLoadViewProps res ret) -> R.Element
 metricsWithCacheLoadView p = R.createElement metricsWithCacheLoadViewCpt p []
-
 metricsWithCacheLoadViewCpt :: forall res ret.
                                Eq ret => JSON.ReadForeign res =>
                                R.Component (MetricsWithCacheLoadViewProps res ret)

src/Gargantext/Components/Nodes/Corpus/Chart/Histo.purs

 module Gargantext.Components.Nodes.Corpus.Chart.Histo where
 
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
 import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff)
-import Gargantext.Components.Charts.Options.Color (grey)
-import Gargantext.Components.Charts.Options.Color (grey, blue, green)
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Simple.JSON as JSON
+import Toestand as T
+
+import Gargantext.Components.Charts.Options.Color (grey, blue)
 import Gargantext.Components.Charts.Options.Data (dataSerie)
 import Gargantext.Components.Charts.Options.ECharts (Options(..), chart, xAxis', yAxis')
 import Gargantext.Components.Charts.Options.Font (itemStyle, mkTooltip, templateFormatter)
-import Gargantext.Components.Charts.Options.Legend (LegendMode(..), selectedMode)
 import Gargantext.Components.Charts.Options.Series (seriesBarD1)
 import Gargantext.Components.Nodes.Corpus.Chart.Common (metricsWithCacheLoadView)
 import Gargantext.Components.Nodes.Corpus.Chart.Types (MetricsProps, Path, Props, ReloadPath)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (HashedResponse(..))
 import Gargantext.Prelude (class Eq, bind, map, pure, ($), (==))
 import Gargantext.Routes (SessionRoute(..))
@@ -23,10 +28,6 @@ import Gargantext.Types (ChartType(..))
 import Gargantext.Utils.CacheAPI as GUC
 import Gargantext.Utils.Reactix as R2
 import Gargantext.Utils.Toestand as T2
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Simple.JSON as JSON
-import Toestand as T
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Nodes.Corpus.Chart.Histo"
@@ -75,8 +76,8 @@ chartOptions { onClick, onInit } (HistoMetrics { dates: dates', count: count'})
           map mapSeriesBar count'
         ]
 
-getMetricsHash :: Session -> ReloadPath -> Aff String
-getMetricsHash session (_ /\ { corpusId, limit, listId, tabType }) = do
+getMetricsHash :: Session -> ReloadPath -> Aff (Either RESTError String)
+getMetricsHash session (_ /\ { corpusId, listId, tabType }) = do
   get session $ ChartHash { chartType: Histo, listId: mListId, tabType } (Just corpusId)
   where
     mListId = if listId == 0 then Nothing else (Just listId)
@@ -90,7 +91,7 @@ handleResponse :: HashedResponse ChartMetrics -> HistoMetrics
 handleResponse (HashedResponse { value: ChartMetrics ms }) = ms."data"
 
 mkRequest :: Session -> ReloadPath -> GUC.Request
-mkRequest session (_ /\ path@{ corpusId, limit, listId, tabType }) = GUC.makeGetRequest session $ chartUrl path
+mkRequest session (_ /\ path) = GUC.makeGetRequest session $ chartUrl path
 
 histo :: Record Props -> R.Element
 histo props = R.createElement histoCpt props []
@@ -114,7 +115,7 @@ histoCpt = here.component "histo" cpt
         }
 
 loaded :: Record MetricsProps -> HistoMetrics -> R.Element
-loaded p@{ path, reload, session } l =
+loaded p l =
   H.div {} [
   {-  U.reloadButton reload
   , U.chartUpdateButton { chartType: Histo, path, reload, session }

src/Gargantext/Components/Nodes/Corpus/Chart/Metrics.purs

 module Gargantext.Components.Nodes.Corpus.Chart.Metrics where
 
 import Data.Generic.Rep (class Generic)
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Map as Map
 import Data.Map (Map)
@@ -25,6 +26,7 @@ import Gargantext.Components.Charts.Options.Data (dataSerie)
 import Gargantext.Components.Nodes.Corpus.Chart.Common (metricsWithCacheLoadView)
 import Gargantext.Components.Nodes.Corpus.Chart.Types
   (MetricsProps, Path, Props, ReloadPath)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (HashedResponse(..))
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, get)
@@ -93,7 +95,7 @@ scatterOptions { onClick, onInit } metrics' = Options
                         }
     --}
 
-getMetricsHash :: Session -> ReloadPath -> Aff String
+getMetricsHash :: Session -> ReloadPath -> Aff (Either RESTError String)
 getMetricsHash session (_ /\ { corpusId, listId, tabType }) =
   get session $ CorpusMetricsHash { listId, tabType } (Just corpusId)
 
@@ -104,7 +106,7 @@ handleResponse :: HashedResponse Metrics -> Loaded
 handleResponse (HashedResponse { value: Metrics ms }) = ms."data"
 
 mkRequest :: Session -> ReloadPath -> GUC.Request
-mkRequest session (_ /\ path@{ corpusId, limit, listId, tabType }) = GUC.makeGetRequest session $ chartUrl path
+mkRequest session (_ /\ path) = GUC.makeGetRequest session $ chartUrl path
 
 metrics :: Record Props -> R.Element
 metrics props = R.createElement metricsCpt props []
@@ -129,7 +131,7 @@ metricsCpt = here.component "etrics" cpt
 
 
 loaded :: Record MetricsProps -> Loaded -> R.Element
-loaded p@{ path, reload, session } loaded' =
+loaded p loaded' =
   H.div {} [
   {-  U.reloadButton reload
   , U.chartUpdateButton { chartType: Scatter, path, reload, session }

src/Gargantext/Components/Nodes/Corpus/Chart/Pie.purs

@@ -3,6 +3,7 @@ module Gargantext.Components.Nodes.Corpus.Chart.Pie where
 import Data.Array (zip, filter)
 import Data.Array as A
 import Data.Generic.Rep (class Generic)
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
@@ -22,6 +23,7 @@ import Gargantext.Components.Charts.Options.Data (dataSerie)
 import Gargantext.Components.Charts.Options.ECharts (Options(..), chart, xAxis', yAxis')
 import Gargantext.Components.Charts.Options.Font (itemStyle, mkTooltip, templateFormatter)
 import Gargantext.Components.Charts.Options.Series (seriesBarD1, seriesPieD1)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Components.Nodes.Corpus.Chart.Common (metricsWithCacheLoadView)
 import Gargantext.Components.Nodes.Corpus.Chart.Types
   (MetricsProps, Path, Props, ReloadPath)
@@ -82,7 +84,7 @@ chartOptionsPie { onClick, onInit } (HistoMetrics { dates: dates', count: count'
   , onInit
   }
 
-getMetricsHash :: Session -> ReloadPath -> Aff String
+getMetricsHash :: Session -> ReloadPath -> Aff (Either RESTError String)
 getMetricsHash session (_ /\ { corpusId, limit, listId, tabType }) = do
   get session $ ChartHash { chartType: ChartPie, listId: mListId, tabType } (Just corpusId)
   where

src/Gargantext/Components/Nodes/Corpus/Chart/Tree.purs

 module Gargantext.Components.Nodes.Corpus.Chart.Tree where
 
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
@@ -17,6 +18,7 @@ import Gargantext.Components.Charts.Options.Series (TreeNode, Trees(..), mkTree)
 import Gargantext.Components.Charts.Options.Font (mkTooltip, templateFormatter)
 import Gargantext.Components.Nodes.Corpus.Chart.Common (metricsWithCacheLoadView)
 import Gargantext.Components.Nodes.Corpus.Chart.Types (MetricsProps, Path, Props, ReloadPath)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (HashedResponse(..))
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, get)
@@ -54,7 +56,7 @@ scatterOptions { onClick, onInit } nodes = Options
 
   }
 
-getMetricsHash :: Session -> ReloadPath -> Aff String
+getMetricsHash :: Session -> ReloadPath -> Aff (Either RESTError String)
 getMetricsHash session (_ /\ { corpusId, limit, listId, tabType }) = do
   get session $ ChartHash { chartType: ChartTree, listId: mListId, tabType } (Just corpusId)
   where

src/Gargantext/Components/Nodes/Corpus/Dashboard.purs

 module Gargantext.Components.Nodes.Corpus.Dashboard where
 
-import Gargantext.Prelude (Unit, bind, discard, pure, read, show, unit, ($), (<$>), (<>), (==))
-
 import Data.Array as A
+import Data.Either (Either(..))
 import Data.List as List
 import Data.Maybe (Maybe(..), fromMaybe)
+import DOM.Simple.Console (log, log2)
 import Effect (Effect)
 import Effect.Aff (launchAff_)
 import Effect.Class (liftEffect)
@@ -12,11 +12,13 @@ import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
 
+import Gargantext.Components.Forest.Tree (doSearch)
 import Gargantext.Components.Nodes.Corpus (fieldsCodeEditor)
 import Gargantext.Components.Nodes.Corpus.Chart.Predefined as P
 import Gargantext.Components.Nodes.Dashboard.Types as DT
 import Gargantext.Components.Nodes.Types (FTFieldList(..), FTFieldsWithIndex(..), defaultField)
 import Gargantext.Hooks.Loader (useLoader)
+import Gargantext.Prelude (Unit, bind, discard, pure, read, show, unit, ($), (<$>), (<>), (==))
 import Gargantext.Sessions (Session, sessionId)
 import Gargantext.Types (NodeID)
 import Gargantext.Utils.Reactix as R2
@@ -65,10 +67,14 @@ dashboardLayoutWithKeyCpt = here.component "dashboardLayoutWithKey" cpt
                                                             , fields :: FTFieldList } -> Effect Unit
         onChange nodeId' reload (DT.Hyperdata h) { charts, fields } = do
           launchAff_ do
-            DT.saveDashboard { hyperdata: DT.Hyperdata $ h { charts = charts, fields = fields }
+            res <- DT.saveDashboard { hyperdata: DT.Hyperdata $ h { charts = charts, fields = fields }
                                     , nodeId:nodeId'
                                     , session }
-            liftEffect $ T2.reload reload
+            liftEffect $ do
+              _ <- case res of
+                Left err -> log2 "[dashboardLayoutWithKey] onChange RESTError" err
+                _ -> pure unit
+              T2.reload reload
 
 type LoadedProps =
   ( charts        :: Array P.PredefinedChart

src/Gargantext/Components/Nodes/Corpus/Document.purs

@@ -2,6 +2,7 @@ module Gargantext.Components.Nodes.Corpus.Document where
 
 --import Data.Argonaut (encodeJson) -- DEBUG
 --import Data.Argonaut.Core (stringifyWithIndent) -- DEBUG
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..), fromMaybe)
 import Data.Tuple (fst)
 import Data.Tuple.Nested ((/\))
@@ -21,6 +22,7 @@ import Gargantext.Components.NgramsTable.Core
   ( CoreAction(..), Versioned(..), addNewNgramA, applyNgramsPatches, coreDispatch, loadNgramsTable
   , replace, setTermListA, syncResetButtons, findNgramRoot )
 import Gargantext.Components.Annotation.AnnotatedField as AnnotatedField
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(..))
 import Gargantext.Sessions (Session, get, sessionId)
@@ -156,13 +158,16 @@ documentLayoutWithKeyCpt = here.component "documentLayoutWithKey" cpt
 
 ------------------------------------------------------------------------
 
-loadDocument :: Session -> Int -> Aff NodeDocument
+loadDocument :: Session -> Int -> Aff (Either RESTError NodeDocument)
 loadDocument session nodeId = get session $ NodeAPI Node (Just nodeId) ""
 
-loadData :: DocPath -> Aff LoadedData
+loadData :: DocPath -> Aff (Either RESTError LoadedData)
 loadData { listIds, nodeId, session, tabType } = do
-  document <- loadDocument session nodeId
-  ngramsTable <- loadNgramsTable
+  eDocument <- loadDocument session nodeId
+  case eDocument of
+    Left err -> pure $ Left err
+    Right document -> do
+      eNgramsTable <- loadNgramsTable
         { listIds
         , nodeId
         , params: { offset : 0, limit : 100, orderBy: Nothing, searchType: SearchDoc}
@@ -173,4 +178,4 @@ loadData { listIds, nodeId, session, tabType } = do
         , termListFilter: Nothing
         , termSizeFilter: Nothing
         }
-  pure { document, ngramsTable }
+      pure $ (\ngramsTable -> { document, ngramsTable }) <$> eNgramsTable

src/Gargantext/Components/Nodes/Dashboard/Types.purs

@@ -2,19 +2,19 @@ module Gargantext.Components.Nodes.Dashboard.Types where
 
 import Gargantext.Prelude
 
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
 import Effect.Aff (Aff)
-import Simple.JSON as JSON
-
 import Gargantext.Components.Nodes.Corpus.Chart.Predefined as P
-
 import Gargantext.Components.Nodes.Types (FTFieldList)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Routes (SessionRoute(NodeAPI))
 import Gargantext.Sessions (Session, get, put)
 import Gargantext.Types (NodeType(..))
+import Simple.JSON as JSON
 
 type Preferences = Maybe String
 
@@ -40,19 +40,18 @@ instance Eq Hyperdata where
 
 type LoadProps = ( nodeId  :: Int, session :: Session )
 
-loadDashboard' :: Record LoadProps -> Aff DashboardData
+loadDashboard' :: Record LoadProps -> Aff (Either RESTError DashboardData)
 loadDashboard' {nodeId, session} = get session $ NodeAPI Node (Just nodeId) ""
 
 -- Just to make reloading effective
-loadDashboardWithReload :: {reload :: Int  | LoadProps} -> Aff DashboardData
+loadDashboardWithReload :: {reload :: Int  | LoadProps} -> Aff (Either RESTError DashboardData)
 loadDashboardWithReload {nodeId, session} = loadDashboard' {nodeId, session}
 
 type SaveProps = ( hyperdata :: Hyperdata | LoadProps )
 
-saveDashboard :: Record SaveProps -> Aff Unit
+saveDashboard :: Record SaveProps -> Aff (Either RESTError Int)
 saveDashboard {hyperdata, nodeId, session} = do
-  _id <- (put session (NodeAPI Node (Just nodeId) "") hyperdata) :: Aff Int
-  pure unit
+  put session (NodeAPI Node (Just nodeId) "") hyperdata
 
 newtype DashboardData =
   DashboardData

src/Gargantext/Components/Nodes/File.purs

 module Gargantext.Components.Nodes.File where
 
 import Data.Generic.Rep (class Generic)
+import Data.Either (Either(..))
 import Data.Eq.Generic (genericEq)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
@@ -10,10 +11,12 @@ import Reactix.DOM.HTML as H
 import Simple.JSON as JSON
 
 import Gargantext.Prelude
+
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Ends (toUrl)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(..))
-import Gargantext.Sessions (Session, get, sessionId)
+import Gargantext.Sessions (Session, get)
 import Gargantext.Types (NodeType(..), NodeID)
 import Gargantext.Utils.Reactix as R2
 
@@ -49,16 +52,14 @@ type FileLayoutProps = ( nodeId :: NodeID, session :: Session )
 
 fileLayout :: R2.Leaf FileLayoutProps
 fileLayout props = R.createElement fileLayoutCpt props []
-
 fileLayoutCpt :: R.Component FileLayoutProps
 fileLayoutCpt = here.component "fileLayout" cpt where
   cpt { nodeId, session } _ = do
     useLoader nodeId (loadFile session) onLoad
       where
         onLoad loaded = fileLayoutLoaded { loaded, nodeId, session }
-        key = show (sessionId session) <> "-" <> show nodeId
 
-loadFile :: Session -> NodeID -> Aff File
+loadFile :: Session -> NodeID -> Aff (Either RESTError File)
 loadFile session nodeId = get session $ NodeAPI Node (Just nodeId) ""
 
 type FileLayoutLoadedProps =
@@ -68,7 +69,6 @@ type FileLayoutLoadedProps =
 
 fileLayoutLoaded :: Record FileLayoutLoadedProps -> R.Element
 fileLayoutLoaded props = R.createElement fileLayoutLoadedCpt props []
-
 fileLayoutLoadedCpt :: R.Component FileLayoutLoadedProps
 fileLayoutLoadedCpt = here.component "fileLayoutLoaded" cpt where
   cpt { loaded: File { hyperdata: HyperdataFile hyperdata }, nodeId, session } _ = do

src/Gargantext/Components/Nodes/Frame.purs

@@ -2,15 +2,14 @@ module Gargantext.Components.Nodes.Frame where
 
 import Gargantext.Prelude
 
-import Data.Argonaut (decodeJson, (.:))
-import Data.Argonaut as Argonaut
+import DOM.Simple as DOM
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
 import Data.Nullable (Nullable, null, toMaybe)
 import Data.Show.Generic (genericShow)
-import DOM.Simple as DOM
 import Effect.Aff (Aff)
 import Reactix as R
 import Reactix.DOM.HTML as H
@@ -20,6 +19,7 @@ import Web.URL as WURL
 
 import Gargantext.Components.FolderView as FV
 import Gargantext.Components.Node (NodePoly(..))
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Routes (SessionRoute(NodeAPI))
 import Gargantext.Sessions (Session, get, sessionId)
@@ -93,10 +93,8 @@ frameLayoutViewCpt :: R.Component ViewProps
 frameLayoutViewCpt = here.component "frameLayoutView" cpt
   where
     cpt { frame: NodePoly { hyperdata: Hyperdata { base, frame_id }}
-        , nodeId
         , nodeType
-        , reload
-        , session } _ = do
+        , reload } _ = do
       case nodeType of
         NodeFrameVisio ->
           case WURL.fromAbsolute base of
@@ -128,10 +126,7 @@ nodeFrameVisioCpt :: R.Component NodeFrameVisioProps
 nodeFrameVisioCpt = here.component "nodeFrameVisio" cpt
   where
     cpt { frame_id
-        , reload
         , url } _  = do
-      -- api = new JitsiMeetExternalAPI("visio.gargantext.org", {roomName: frame_id})
-      api <- T.useBox (Nothing :: Maybe JM.JitsiMeet)
       ref <- R.useRef (null :: Nullable DOM.Element)
 
       R.useEffect' $ do
@@ -152,9 +147,9 @@ type ReloadProps = ( nodeId  :: Int
                    , reload :: T2.Reload
                    , session :: Session )
 
-loadframe' :: Record LoadProps -> Aff (NodePoly Hyperdata)
+loadframe' :: Record LoadProps -> Aff (Either RESTError (NodePoly Hyperdata))
 loadframe' { nodeId, session } = get session $ NodeAPI Node (Just nodeId) ""
 
 -- Just to make reloading effective
-loadframeWithReload :: Record ReloadProps -> Aff (NodePoly Hyperdata)
+loadframeWithReload :: Record ReloadProps -> Aff (Either RESTError (NodePoly Hyperdata))
 loadframeWithReload { nodeId, session } = loadframe' { nodeId, session }

src/Gargantext/Components/Nodes/Home/Public.purs

 module Gargantext.Components.Nodes.Home.Public where
 
+import Data.Either (Either)
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..))
 import Data.Show.Generic (genericShow)
 import Data.String (take)
 import Effect.Aff (Aff)
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Simple.JSON as JSON
+import Simple.JSON.Generics as JSONG
+
 import Gargantext.Config (publicBackend)
-import Gargantext.Config.REST (get)
+import Gargantext.Config.REST (get, RESTError)
 import Gargantext.Ends (backendUrl)
 import Gargantext.Hooks.Loader (useLoader)
 import Gargantext.Prelude
 import Gargantext.Utils.Reactix as R2
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Simple.JSON as JSON
-import Simple.JSON.Generics as JSONG
 
 here :: R2.Here
 here = R2.here "Gargantext.Components.Nodes.Home.Public"
@@ -44,7 +46,7 @@ type LoadData  = ()
 type LoadProps = (reload :: Int)
 
 -- | WIP still finding the right way to chose the default public backend
-loadPublicData :: Record LoadProps -> Aff (Array PublicData)
+loadPublicData :: Record LoadProps -> Aff (Either RESTError (Array PublicData))
 loadPublicData _l = do
   -- This solution is error prone (url needs to be cleaned)
   --backend <- liftEffect public
@@ -76,7 +78,6 @@ renderPublicCpt = here.component "renderPublic" cpt where
 
 publicLayout :: Record PublicDataProps -> R.Element
 publicLayout props = R.createElement publicLayoutCpt props []
-
 publicLayoutCpt :: R.Component PublicDataProps
 publicLayoutCpt = here.component "publicLayout" cpt
   where

src/Gargantext/Components/Router.purs

@@ -5,6 +5,12 @@ import Gargantext.Prelude
 import Data.Array as A
 import Data.Maybe (Maybe(..))
 import Data.Tuple.Nested ((/\))
+import Reactix as R
+import Reactix.DOM.HTML as H
+import Record as Record
+import Record.Extra as RE
+import Toestand as T
+
 import Gargantext.Components.App.Data (Boxes)
 import Gargantext.Components.Footer (footer)
 import Gargantext.Components.Forest as Forest
@@ -36,11 +42,6 @@ import Gargantext.Sessions (Session, WithSession)
 import Gargantext.Sessions as Sessions
 import Gargantext.Types (CorpusId, Handed(..), ListId, NodeID, NodeType(..), SessionId, SidePanelState(..), reverseHanded)
 import Gargantext.Utils.Reactix as R2
-import Reactix as R
-import Reactix.DOM.HTML as H
-import Record as Record
-import Record.Extra as RE
-import Toestand as T
 
 
 here :: R2.Here

src/Gargantext/Config/REST.purs

 module Gargantext.Config.REST where
 
-import Affjax (defaultRequest, printError, request)
-import Affjax.RequestBody (RequestBody(..), formData, formURLEncoded, string)
+import Gargantext.Prelude
+
+import Affjax (defaultRequest, request)
+import Affjax as Affjax
+import Affjax.RequestBody (formData, formURLEncoded, string)
 import Affjax.RequestHeader as ARH
 import Affjax.ResponseFormat as ResponseFormat
-import DOM.Simple.Console (log, log2)
+import DOM.Simple.Console (log2)
 import Data.Argonaut.Core as AC
 import Data.Either (Either(..))
 import Data.Foldable (foldMap)
 import Data.FormURLEncoded as FormURLEncoded
+import Data.Generic.Rep (class Generic)
 import Data.HTTP.Method (Method(..))
 import Data.Maybe (Maybe(..))
 import Data.MediaType.Common (applicationFormURLEncoded, applicationJSON, multipartFormData)
-import Data.Tuple (Tuple(..))
-import DOM.Simple.Console (log2)
-import Effect.Aff (Aff, throwError)
+import Data.Tuple (Tuple)
+import Effect.Aff (Aff)
 import Effect.Class (liftEffect)
-import Effect.Exception (error)
-import Milkis as Milkis
-import Unsafe.Coerce (unsafeCoerce)
+import Foreign as Foreign
 import Simple.JSON as JSON
 import Web.XHR.FormData as XHRFormData
 
-import Gargantext.Prelude
 import Gargantext.Utils.Reactix as R2
 
 type Token = String
 
-readJSONOrFail affResp =
+data RESTError =
+    SendResponseError Affjax.Error
+  | ReadJSONError     Foreign.MultipleErrors
+
+derive instance Generic RESTError _
+instance Eq RESTError where
+  -- this is crude but we need it only because of useLoader
+  eq _ _ = false
+
+readJSON :: forall a b. JSON.ReadForeign a =>
+            Either Affjax.Error
+            { body :: AC.Json
+            | b
+            } -> Either RESTError a
+readJSON affResp =
   case affResp of
     Left err -> do
-      _ <-  liftEffect $ log $ printError err
-      throwError $ error $ printError err
+      -- _ <- liftEffect $ log $ printError err
+      --throwError $ error $ printError err
+      Left $ SendResponseError err
     Right resp -> do
       --_ <-  liftEffect $ log json.status
       --_ <-  liftEffect $ log json.headers
       --_ <-  liftEffect $ log json.body
-      case JSON.readJSON (AC.stringify resp.body) of
-        Left err -> throwError $ error $ "decodeJson affResp.body: " <> show err
-        Right b -> pure b
+      case (JSON.readJSON $ AC.stringify resp.body) of
+        Left err -> Left $ ReadJSONError err
+        Right r -> Right r
+
+-- readJSONOrFail affResp = do
+--   case readJSON affResp of
+--     Left err -> throwError $ error $ "decodeJson affResp.body: " <> show err
+--     Right b -> pure b
 
 -- TODO too much duplicate code in `postWwwUrlencoded`
 send :: forall body res. JSON.WriteForeign body => JSON.ReadForeign res =>
-        Method -> Maybe Token -> String -> Maybe body -> Aff res
+        Method -> Maybe Token -> String -> Maybe body -> Aff (Either RESTError res)
 send m mtoken url reqbody = do
   let req = defaultRequest
          { url = url
@@ -62,36 +82,37 @@ send m mtoken url reqbody = do
       let cookie = "JWT-Cookie=" <> token <> "; Path=/;" --" HttpOnly; Secure; SameSite=Lax"
       R2.setCookie cookie
   affResp <- request req
-  readJSONOrFail affResp
+  liftEffect $ log2 "affResp" affResp
+  pure $ readJSON affResp
 
 noReqBody :: Maybe String
 noReqBody = Just ""
 --noReqBody = Nothing
 
-get :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff a
+get :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff (Either RESTError a)
 get mtoken url = send GET mtoken url noReqBody
 
-put :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff b
+put :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff (Either RESTError b)
 put mtoken url = send PUT mtoken url <<< Just
 
-put_ :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff a
+put_ :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff (Either RESTError a)
 put_ mtoken url = send PUT mtoken url noReqBody
 
-delete :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff a
+delete :: forall a. JSON.ReadForeign a => Maybe Token -> String -> Aff (Either RESTError a)
 delete mtoken url = send DELETE mtoken url noReqBody
 
 -- This might not be a good idea:
 -- https://stackoverflow.com/questions/14323716/restful-alternatives-to-delete-request-body
-deleteWithBody :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff b
+deleteWithBody :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff (Either RESTError b)
 deleteWithBody mtoken url = send DELETE mtoken url <<< Just
 
-post :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff b
+post :: forall a b. JSON.WriteForeign a => JSON.ReadForeign b => Maybe Token -> String -> a -> Aff (Either RESTError b)
 post mtoken url = send POST mtoken url <<< Just
 
 type FormDataParams = Array (Tuple String (Maybe String))
 
 -- TODO too much duplicate code with `send`
-postWwwUrlencoded :: forall b. JSON.ReadForeign b => Maybe Token -> String -> FormDataParams -> Aff b
+postWwwUrlencoded :: forall b. JSON.ReadForeign b => Maybe Token -> String -> FormDataParams -> Aff (Either RESTError b)
 postWwwUrlencoded mtoken url bodyParams = do
   affResp <- request $ defaultRequest
              { url = url
@@ -105,11 +126,11 @@ postWwwUrlencoded mtoken url bodyParams = do
                           ) mtoken
              , content  = Just $ formURLEncoded urlEncodedBody
              }
-  readJSONOrFail affResp
+  pure $ readJSON affResp
   where
     urlEncodedBody = FormURLEncoded.fromArray bodyParams
 
-postMultipartFormData :: forall b. JSON.ReadForeign b => Maybe Token -> String -> String -> Aff b
+postMultipartFormData :: forall b. JSON.ReadForeign b => Maybe Token -> String -> String -> Aff (Either RESTError b)
 postMultipartFormData mtoken url body = do
   fd <- liftEffect $ XHRFormData.new
   _ <- liftEffect $ XHRFormData.append (XHRFormData.EntryName "body") body fd
@@ -125,4 +146,4 @@ postMultipartFormData mtoken url body = do
                          ) mtoken
              , content = Just $ formData fd
              }
-  readJSONOrFail affResp
+  pure $ readJSON affResp

src/Gargantext/Hooks/Loader.purs

 module Gargantext.Hooks.Loader where
 
+import Data.Either (Either(..))
 import Data.Generic.Rep (class Generic)
 import Data.Maybe (Maybe(..), isJust, maybe)
 import Data.Newtype (class Newtype)
-import Data.Tuple (fst)
-import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff, launchAff_, throwError)
 import Effect.Class (liftEffect)
 import Effect.Exception (error)
@@ -13,6 +12,7 @@ import Simple.JSON as JSON
 import Toestand as T
 
 import Gargantext.Components.LoadingSpinner (loadingSpinner)
+import Gargantext.Config.REST (RESTError)
 import Gargantext.Prelude
 import Gargantext.Utils.Crypto (Hash)
 import Gargantext.Utils.CacheAPI as GUC
@@ -30,7 +30,7 @@ clearCache _ = GUC.delete $ GUC.CacheName cacheName
 
 useLoader :: forall path st. Eq path => Eq st
           => path
-          -> (path -> Aff st)
+          -> (path -> Aff (Either RESTError st))
           -> (st -> R.Element)
           -> R.Hooks R.Element
 useLoader path loader' render = do
@@ -61,7 +61,7 @@ loaderCpt = here.component "loader" cpt
 useLoaderEffect :: forall st path. Eq path => Eq st =>
                       path
                    -> T.Box (Maybe st)
-                   -> (path -> Aff st)
+                   -> (path -> Aff (Either RESTError st))
                    -> R.Hooks Unit
 useLoaderEffect path state loader = do
   state' <- T.useLive T.unequal state
@@ -75,7 +75,9 @@ useLoaderEffect path state loader = do
       R.setRef oPath path
       R2.affEffect "G.H.Loader.useLoaderEffect" $ do
         l <- loader path
-        liftEffect $ T.write_ (Just l) state
+        case l of
+          Left _err -> throwError $ error "[useLoaderEffect] RESTError"
+          Right l' -> liftEffect $ T.write_ (Just l') state
 
 
 newtype HashedResponse a = HashedResponse { hash  :: Hash, value :: a }
@@ -85,7 +87,7 @@ derive newtype instance JSON.ReadForeign a => JSON.ReadForeign (HashedResponse a
 derive newtype instance JSON.WriteForeign a => JSON.WriteForeign (HashedResponse a)
 
 type LoaderWithCacheAPIProps path res ret = (
-    cacheEndpoint :: path -> Aff Hash
+    cacheEndpoint :: path -> Aff (Either RESTError Hash)
   , handleResponse :: HashedResponse res -> ret
   , mkRequest :: path -> GUC.Request
   , path :: path
@@ -109,7 +111,7 @@ useLoaderWithCacheAPI { cacheEndpoint, handleResponse, mkRequest, path, renderer
   pure $ maybe (loadingSpinner {}) renderer state'
 
 type LoaderWithCacheAPIEffectProps path res ret = (
-    cacheEndpoint  :: path -> Aff Hash
+    cacheEndpoint  :: path -> Aff (Either RESTError Hash)
   , handleResponse :: HashedResponse res -> ret
   , mkRequest      :: path -> GUC.Request
   , path           :: path
@@ -141,14 +143,17 @@ useCachedAPILoaderEffect { cacheEndpoint
         -- TODO Parallelize?
         hr@(HashedResponse { hash, value }) <- GUC.cachedJson cache req
         cacheReal <- cacheEndpoint path
-        val <- if hash == cacheReal then
+        case cacheReal of
+          Left _err -> throwError $ error $ "[useCachedAPILoaderEffect] RESTError"
+          Right cacheReal' -> do
+            val <- if hash == cacheReal' then
               pure hr
             else do
               _ <- GUC.deleteReq cache req
               hr'@(HashedResponse { hash: h }) <- GUC.cachedJson cache req
-          if h == cacheReal then
+              if h == cacheReal' then
                 pure hr'
               else
-            throwError $ error $ "[Hooks.Loader] Fetched clean cache but hashes don't match: " <> h <> " != " <> cacheReal
+                throwError $ error $ "[Hooks.Loader] Fetched clean cache but hashes don't match: " <> h <> " != " <> cacheReal'
             liftEffect $ do
               T.write_ (Just $ handleResponse val) state

src/Gargantext/Sessions.purs

@@ -28,9 +28,6 @@ import Gargantext.Ends (class ToUrl, Backend, toUrl)
 import Gargantext.Sessions.Types (Session(..), Sessions(..), OpenNodes, NodeId, mkNodeId, sessionUrl, sessionId, empty, null, unSessions, lookup, cons, tryCons, update, remove, tryRemove)
 import Gargantext.Utils.Reactix as R2
 
-here :: R2.Here
-here = R2.here "Gargantext.Sessions"
-
 type WithSession c =
   ( session :: Session
   | c )
@@ -113,44 +110,42 @@ saveSessions sessions = effect *> pure sessions where
     | null sessions = rem
     | otherwise = set (JSON.writeJSON sessions)
 
-updateSession :: Session -> Effect Unit
-updateSession s = do
-  ss <- loadSessions
-  _ <- saveSessions $ update s ss
-  pure unit
-
 postAuthRequest :: Backend -> AuthRequest -> Aff (Either String Session)
 postAuthRequest backend ar@(AuthRequest {username}) =
   decode <$> REST.post Nothing (toUrl backend "auth") ar
   where
-    decode (AuthResponse ar2)
+    decode (Left _err) = Left "Error when sending REST.post"
+    decode (Right (AuthResponse ar2))
       | {inval: Just (AuthInvalid {message})}     <- ar2 = Left message
       | {valid: Just (AuthData {token, tree_id})} <- ar2 =
           Right $ Session { backend, caches: Map.empty, token, treeId: tree_id, username }
       | otherwise = Left "Invalid response from server"
 
-get :: forall a p. JSON.ReadForeign a => ToUrl Session p => Session -> p -> Aff a
+get :: forall a p. JSON.ReadForeign a => ToUrl Session p =>
+       Session -> p -> Aff (Either REST.RESTError a)
 get session@(Session {token}) p = REST.get (Just token) (toUrl session p)
 
-put :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p => Session -> p -> a -> Aff b
+put :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p =>
+       Session -> p -> a -> Aff (Either REST.RESTError b)
 put session@(Session {token}) p = REST.put (Just token) (toUrl session p)
 
-put_ :: forall b p. JSON.ReadForeign b => ToUrl Session p => Session -> p -> Aff b
+put_ :: forall b p. JSON.ReadForeign b => ToUrl Session p => Session -> p -> Aff (Either REST.RESTError b)
 put_ session@(Session {token}) p = REST.put_ (Just token) (toUrl session p)
 
-delete :: forall a p. JSON.ReadForeign a => ToUrl Session p => Session -> p -> Aff a
+delete :: forall a p. JSON.ReadForeign a => ToUrl Session p =>
+          Session -> p -> Aff (Either REST.RESTError a)
 delete session@(Session {token}) p = REST.delete (Just token) (toUrl session p)
 
 -- This might not be a good idea:
 -- https://stackoverflow.com/questions/14323716/restful-alternatives-to-delete-request-body
-deleteWithBody :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p => Session -> p -> a -> Aff b
+deleteWithBody :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p =>
+                  Session -> p -> a -> Aff (Either REST.RESTError b)
 deleteWithBody session@(Session {token}) p = REST.deleteWithBody (Just token) (toUrl session p)
 
-post :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p => Session -> p -> a -> Aff b
+post :: forall a b p. JSON.WriteForeign a => JSON.ReadForeign b => ToUrl Session p =>
+        Session -> p -> a -> Aff (Either REST.RESTError b)
 post session@(Session {token}) p = REST.post (Just token) (toUrl session p)
 
-postWwwUrlencoded :: forall b p. JSON.ReadForeign b => ToUrl Session p => Session -> p -> REST.FormDataParams -> Aff b
+postWwwUrlencoded :: forall b p. JSON.ReadForeign b => ToUrl Session p =>
+                     Session -> p -> REST.FormDataParams -> Aff (Either REST.RESTError b)
 postWwwUrlencoded session@(Session {token}) p = REST.postWwwUrlencoded (Just token) (toUrl session p)
-
-postMultipartFormData :: forall b p. JSON.ReadForeign b => ToUrl Session p => Session -> p -> String -> Aff b
-postMultipartFormData session@(Session {token}) p = REST.postMultipartFormData (Just token) (toUrl session p)

src/Gargantext/Types.purs

 module Gargantext.Types where
 
+import Gargantext.Prelude
+
+import CSS.Cursor (Cursor(..))
 import Data.Array as A
+import Data.Either (Either)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
 import Data.Int (toNumber)
@@ -11,15 +15,16 @@ import Data.Show.Generic (genericShow)
 import Data.String as S
 import Effect.Aff (Aff)
 import Foreign as F
-import Gargantext.Components.Lang (class Translate, Lang(..))
-import Gargantext.Prelude
-import Gargantext.Utils.Glyphicon (classNamePrefix, glyphiconToCharCode)
 import Prim.Row (class Union)
 import Reactix as R
 import Simple.JSON as JSON
 import Simple.JSON.Generics as JSONG
 import URI.Query (Query)
 
+import Gargantext.Components.Lang (class Translate, Lang(..))
+import Gargantext.Config.REST (RESTError)
+import Gargantext.Utils.Glyphicon (classNamePrefix, glyphiconToCharCode)
+
 data Handed = LeftHanded | RightHanded
 
 switchHanded :: forall a. a -> a -> Handed -> a
@@ -621,6 +626,7 @@ instance DecodeJson TabType where
 
 type TableResult a = {count :: Int, docs :: Array a}
 type AffTableResult a = Aff (TableResult a)
+type AffETableResult a = Aff (Either RESTError (TableResult a))
 
 data Mode = Authors
           | Sources
@@ -771,3 +777,9 @@ toggleSidePanelState :: SidePanelState -> SidePanelState
 toggleSidePanelState InitialClosed = Opened
 toggleSidePanelState Closed        = Opened
 toggleSidePanelState Opened        = Closed
+
+---------------------------------------------------------------------------
+
+newtype FrontendError = FrontendError
+  { error :: String
+  }

src/Gargantext/Version.purs

 module Gargantext.Version where
 
+import Prelude
+
+import DOM.Simple.Console (log2)
+import Data.Either (Either(..))
 import Data.Maybe (Maybe(..))
-import Data.Tuple.Nested ((/\))
 import Effect.Aff (Aff, launchAff_)
 import Effect.Class (liftEffect)
-import Prelude
 import Reactix as R
 import Reactix.DOM.HTML as H
 import Toestand as T
@@ -22,7 +24,7 @@ type Version = String
 
 foreign import version :: Version
 
-getBackendVersion :: Session -> Aff Version
+getBackendVersion :: Session -> Aff (Either REST.RESTError Version)
 getBackendVersion (Session { backend }) = REST.get Nothing (toUrl backend "version")
 
 
@@ -33,7 +35,6 @@ type VersionProps =
 
 versionView :: R2.Component VersionProps
 versionView = R.createElement versionCpt
-
 versionCpt :: R.Component VersionProps
 versionCpt = here.component "version" cpt
   where
@@ -44,7 +45,9 @@ versionCpt = here.component "version" cpt
       R.useEffect' $ do
         launchAff_ $ do
           v <- getBackendVersion session
-          liftEffect $ T.write_ v versionBack
+          case v of
+            Right v' -> liftEffect $ T.write_ v' versionBack
+            Left err -> liftEffect $ log2 "[version] error" err
 
       pure $ case version == versionBack' of
         true  -> H.a { className: "fa fa-check-circle-o"