Rewrote app to use hooks and fixed multiple re-renders.

client/src/App/App.js

@@ -1,4 +1,5 @@
-import React from "react";
+import React, { useEffect } from "react";
+import { useApolloClient, useQuery } from "@apollo/react-hooks";
 import { Switch, Route, Redirect } from "react-router-dom";
 import firebase from "../firebase/firebase.utils";
 
@@ -6,32 +7,33 @@ import "./App.css";
 
 //Component Imports
 import LandingPage from "../pages/landing/landing.page";
-import Manage from "../pages/manage/manage.page";
+import ManagePage from "../pages/manage/manage.page";
 import PrivateRoute from "../utils/private-route";
 import SignInPage from "../pages/sign-in/sign-in.page";
 import Unauthorized from "../pages/unauthorized/unauthorized.component";
 
 import { auth } from "../firebase/firebase.utils";
 
-class App extends React.Component {
-  unsubscribeFromAuth = null;
+import { GET_CURRENT_USER } from "../graphql/local.queries";
+import LoadingSpinner from "../components/loading-spinner/loading-spinner.component";
+import AlertComponent from "../components/alert/alert.component";
+import SignOut from "../components/sign-out/sign-out.component";
 
-  componentDidMount() {
-    const { setCurrentUser } = this.props;
-    console.log("DIDMOUNT");
-    this.unsubscribeFromAuth = auth.onAuthStateChanged(async user => {
-      console.log("Current User:", user);
+import { UPSERT_USER } from "../graphql/user.queries";
+
+export default () => {
+  const apolloClient = useApolloClient();
+
+  useEffect(() => {
+    //Run the auth code only on the first render.
+    const unsubscribeFromAuth = auth.onAuthStateChanged(async user => {
       if (user) {
-        const token = await user.getIdToken();
+        let token;
+        token = await user.getIdToken();
         const idTokenResult = await user.getIdTokenResult();
         const hasuraClaim =
           idTokenResult.claims["https://hasura.io/jwt/claims"];
         if (hasuraClaim) {
-          setCurrentUser({
-            email: user.email,
-            displayName: user.displayName,
-            token
-          });
         } else {
           // Check if refresh is required.
           const metadataRef = firebase
@@ -39,62 +41,71 @@ class App extends React.Component {
             .ref("metadata/" + user.uid + "/refreshTime");
           metadataRef.on("value", async () => {
             // Force refresh to pick up the latest custom claims changes.
-            const token = await user.getIdToken(true);
-            setCurrentUser({
-              email: user.email,
-              displayName: user.displayName,
-              token
-            });
+            token = await user.getIdToken(true);
           });
         }
-        // console.log('###Debug (app.js)| Token', token)
+        apolloClient.writeData({
+          data: {
+            currentUser: {
+              email: user.email,
+              displayName: user.displayName,
+              token,
+              uid: user.uid,
+              photoUrl: user.photoURL,
+              __typename: "currentUser"
+            }
+          }
+        });
         //add the bearer token to the headers.
         localStorage.setItem("token", token);
+
+        apolloClient
+          .mutate({
+            mutation: UPSERT_USER,
+            variables: { authEmail: user.email, authToken: user.uid }
+          })
+          .then(r => console.log("Successful Upsert", r))
+          .catch(error => {
+            console.log("Upsert error!!!!", error);
+          });
       } else {
-        setCurrentUser({
-          email: null,
-          displayName: null,
-          token: null
-        });
+        apolloClient.writeData({ data: { currentUser: null } });
         localStorage.removeItem("token");
       }
     });
-  }
 
-  componentWillUnmount() {
-    this.unsubscribeFromAuth();
-  }
+    return function cleanup() {
+      unsubscribeFromAuth();
+    };
+  }, [apolloClient]);
 
-  render() {
-    console.log(
-      "###Debug (App.js) | Props Current User: ",
-      this.props.currentUser.email
-    );
-    return (
-      <div>
-        <Switch>
-          <Route exact path="/" component={LandingPage} />
-          <Route exact path="/unauthorized" component={Unauthorized} />
-          <Route
-            exact
-            path="/signin"
-            render={() =>
-              this.props.currentUser.email != null ? (
-                <Redirect to="/manage" />
-              ) : (
-                <SignInPage />
-              )
-            }
-          />
-          <PrivateRoute
-            isAuthorized={this.props.currentUser.email != null}
-            path="/manage"
-            component={Manage}
-          />
-        </Switch>
-      </div>
-    );
-  }
-}
-
-export default App;
+  const HookCurrentUser = useQuery(GET_CURRENT_USER);
+  if (HookCurrentUser.loading) return <LoadingSpinner />;
+  if (HookCurrentUser.error)
+    return <AlertComponent message={HookCurrentUser.error.message} />;
+  return (
+    <div>
+      <SignOut />
+      <Switch>
+        <Route exact path="/" component={LandingPage} />
+        <Route exact path="/unauthorized" component={Unauthorized} />
+        <Route
+          exact
+          path="/signin"
+          render={() =>
+            HookCurrentUser.data.currentUser ? (
+              <Redirect to="/manage" />
+            ) : (
+              <SignInPage />
+            )
+          }
+        />
+        <PrivateRoute
+          isAuthorized={HookCurrentUser.data.currentUser ? true : false}
+          path="/manage"
+          component={ManagePage}
+        />
+      </Switch>
+    </div>
+  );
+};