IO-2208 Added pagination and subscription to chat

client/src/utils/GraphQLClient.js

@@ -3,7 +3,10 @@ import { setContext } from "@apollo/client/link/context";
 import { HttpLink } from "@apollo/client/link/http"; //"apollo-link-http";
 import { RetryLink } from "@apollo/client/link/retry";
 import { WebSocketLink } from "@apollo/client/link/ws";
-import { getMainDefinition } from "@apollo/client/utilities";
+import {
+  getMainDefinition,
+  offsetLimitPagination,
+} from "@apollo/client/utilities";
 //import { split } from "apollo-link";
 import apolloLogger from "apollo-link-logger";
 //import axios from "axios";
@@ -140,7 +143,15 @@ middlewares.push(
   )
 );
 
-const cache = new InMemoryCache({});
+const cache = new InMemoryCache({
+  typePolicies: {
+    Query: {
+      fields: {
+        conversations: offsetLimitPagination(),
+      },
+    },
+  },
+});
 
 const client = new ApolloClient({
   link: ApolloLink.from(middlewares),