Redirect when signed in and going to sign in page.

client/src/App/App.js

@@ -1,5 +1,5 @@
 import React from "react";
-import { Switch, Route } from "react-router";
+import { Switch, Route, Redirect } from "react-router";
 import { ApolloProvider } from "react-apollo";
 import { HttpLink } from "apollo-link-http";
 import ApolloClient from "apollo-client";
@@ -11,11 +11,11 @@ import { gql } from "apollo-boost";
 import "./App.css";
 
 //Component Imports
-import SignIn from "../components/sign-in-form/sign-in-form.component";
 import LandingPage from "../pages/landing/landing.page";
 import Manage from "../pages/manage/manage.page";
 
 import PrivateRoute from "../utils/private-route";
+import SignInContainer from "../pages/sign-in/sign-in.container";
 
 const graphqlEndpoint = process.env.REACT_APP_GRAPHQL_ENDPOINT;
 
@@ -49,7 +49,13 @@ export default function App({ authState }) {
     <ApolloProvider client={client}>
       <Switch>
         <Route exact path="/" component={LandingPage} />
-        <Route exact path="/signin" component={SignIn} />
+        <Route
+          exact
+          path="/signin"
+          render={() =>
+            authState ? <Redirect to="/manage" /> : <SignInContainer />
+          }
+        />
         <PrivateRoute isAuthorized={isIn} path="/manage" component={Manage} />
       </Switch>
     </ApolloProvider>