invalidate local cache when moving dir

src/Cache.ts

@@ -0,0 +1,55 @@
+import { InMemoryCache } from "@apollo/client"
+import ObjID from "./types/ObjID"
+
+const cache = new InMemoryCache({
+	typePolicies:{
+		File:{
+			fields:{
+				id:{
+					merge(_,incomming){
+						// HACK: i use the merge function to change the id from a string to ObjID object.
+						// afaik apollo does not yet support custom scalar types.
+						if (!incomming){
+							return incomming
+						}else if (incomming instanceof ObjID){
+							return incomming
+						}else{
+							return ObjID.fromString(incomming as string)
+						}
+					}
+				}
+			}
+		},
+		Directory:{
+			fields:{
+				id:{
+					merge(_,incomming){
+						if (!incomming){
+							return incomming
+						}else if (incomming instanceof ObjID){
+							return incomming
+						}else{
+							return ObjID.fromString(incomming as string)
+						}
+					}
+				}
+			}
+		},
+		Query: {
+			fields: {
+				files: {
+					merge(existing, incoming){
+						return incoming
+					}
+				},
+				directorys:{
+					merge(existing, incoming){
+						return incoming
+					}
+				}
+			}
+		}
+	}
+})
+
+export default cache

src/components/FileBrowser.tsx

@@ -16,6 +16,7 @@ import { ReactComponent as Spinner } from "./../assets/spinner.svg"
 import FileBrowserList from "./FileBrowserList"
 import MoreMenu from "./MoreMenu"
 import ObjID from "../types/ObjID"
+import cache from "../Cache"
 
 const FileBrowser: React.FC<RouteComponentProps> = (props) => {
 	const path = ObjID.fromURI(props.location.pathname)
@@ -86,6 +87,11 @@ const FileBrowser: React.FC<RouteComponentProps> = (props) => {
 			if (pasteAction === Action.DirMove && srcID){
 				await moveDirMutation({variables:{src:srcID,dest:path}})
 				refetchDir()
+
+				cache.evict({
+					id: `Directory:${srcID.toString()}` // TODO: check for a better way to generate cache ids
+				})
+				
 				setSrcID(null)
 			}
 

src/index.tsx

@@ -2,62 +2,13 @@ import React from "react"
 import ReactDOM from "react-dom"
 import "./index.scss"
 import App from "./App"
-import { ApolloClient, ApolloProvider, InMemoryCache } from "@apollo/client"
+import { ApolloClient, ApolloProvider } from "@apollo/client"
 import "react-contexify/dist/ReactContexify.css"
-import ObjID from "./types/ObjID"
+import cache from "./Cache"
 
 const client = new ApolloClient({
 	uri: "/api/graphql",
-	cache: new InMemoryCache({
-		typePolicies:{
-			File:{
-				fields:{
-					id:{
-						merge(_,incomming){
-							// HACK: i use the merge function to change the id from a string to ObjID object.
-							// afaik apollo does not yet support custom scalar types.
-							if (!incomming){
-								return incomming
-							}else if (incomming instanceof ObjID){
-								return incomming
-							}else{
-								return ObjID.fromString(incomming as string)
-							}
-						}
-					}
-				}
-			},
-			Directory:{
-				fields:{
-					id:{
-						merge(_,incomming){
-							if (!incomming){
-								return incomming
-							}else if (incomming instanceof ObjID){
-								return incomming
-							}else{
-								return ObjID.fromString(incomming as string)
-							}
-						}
-					}
-				}
-			},
-			Query: {
-				fields: {
-					files: {
-						merge(existing, incoming){
-							return incoming
-						}
-					},
-					directorys:{
-						merge(existing, incoming){
-							return incoming
-						}
-					}
-				}
-			}
-		}
-	})
+	cache: cache,
 })
 
 // Disable drag and drop behaviour on document