Fix messages fetching

frontend/src/actions/messages.js

@@ -15,10 +15,16 @@ export async function toggleConnection(devnet, appId = 413) {
     return changeConnection(devnet, appId)
 }
 
-export function fetchPosts(counter) {
+let lastResponseRequestTime = 0;
+
+export function fetchPosts() {
     return dispatch => {
+        const currentRequestTime = Date.now();
         return getMessages().then((messages) => {
-            dispatch(receiveMessages(messages, counter));
+            if (currentRequestTime > lastResponseRequestTime) {
+                lastResponseRequestTime = currentRequestTime;
+                dispatch(receiveMessages(messages));
+            }
         })
     };
 }
@@ -29,7 +35,7 @@ export function handleInitialData() {
         dispatch(showLoading());
 
         return getMessages().then((messages) => {
-            dispatch(receiveMessages(messages, 0));
+            dispatch(receiveMessages(messages));
 
             //after everything has loaded, hide loading bar
             dispatch(hideLoading());
@@ -50,10 +56,9 @@ export function handleAddMessage(text, name) {
 }
 
 //action creator
-export function receiveMessages(messages, counter) {
+export function receiveMessages(messages) {
     return {
         type: RECEIVE_MESSAGES,
-        counter,
         messages
     };
 }

frontend/src/components/Dashboard.js

@@ -5,12 +5,6 @@ import Message from "./Message";
 import {handleInitialData, fetchPosts} from "../actions/messages";
 
 class Dashboard extends Component {
-
-    constructor(props) {
-        super(props);
-        this.state = {counter: 1, lastUpdateCounter: 0, firstFetch: true};
-    }
-
     componentDidMount() {
         this.props.dispatch(handleInitialData());
         this.pollingMessages = setInterval(
@@ -24,30 +18,15 @@ class Dashboard extends Component {
     }
 
     getMessages() {
-        this.props.dispatch(fetchPosts(this.state.counter + 1, this.state.firstFetch));
-
-        this.setState((state) => ({
-            counter: state.counter + 1,
-            firstFetch: false
-        }));
-    }
-
-    shouldComponentUpdate(nextProps) {
-        return nextProps.updates.counter > this.state.lastUpdateCounter
+        this.props.dispatch(fetchPosts());
     }
 
     render() {
-        let updates = this.props.updates;
-        if (updates.counter) {
-            this.setState(() => ({
-                lastUpdateCounter: updates.counter
-            }));
-        }
         return (
             <div>
                 <h3 className="center">Feed</h3>
                 <ul className="dashbord-list">
-                    {updates.messages.map((m, i) => {
+                    {this.props.updates.messages.map((m, i) => {
                         return (
                             <li key={i}>
                                 <Message message={m} />