Add Response Logik for socket. Should give now real responses.

helpFunctions.js

+const axios = require('axios');
+
+/**
+ * @return {boolean}
+ */
+function isJsonString(str) {
+    try {
+        JSON.parse(str);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}
+
+function checkIfRequestHasVote(json) {
+    return json.hasOwnProperty('vote');
+}
+
+function sendRequest(url, json, callback) {
+    //make post request
+    axios
+        .post(url, JSON.parse(json))
+        .then(res => {
+            //echo data
+            callback(res);
+        })
+        .catch(error => {
+            console.error(error);
+            callback(null);
+        });
+}
+
+module.exports = {
+    isJsonString,
+    checkIfRequestHasVote,
+    sendRequest
+};

socket.js

 var net = require('net');
-const axios = require('axios');
+var hf = require('./helpFunctions');
 
 // creates the server
 var server = net.createServer();
@@ -73,25 +73,27 @@ server.on('connection',function(socket){
         console.log('Bytes read : ' + bread);
         console.log('Bytes written : ' + bwrite);
         console.log('Data sent to server : ' + data);
-        axios
-            .post('http://localhost:8080/setVote', {
-                mapId: 'abcdef',
-                name: 'alphabet',
-                userId: 'xyz',
-                vote: '30'
-            })
-            .then(res => {
-                //echo data
-                var is_kernel_buffer_full = socket.write(JSON.stringify(res.data) + '\n');
-                if(is_kernel_buffer_full){
-                    console.log('Data was flushed successfully from kernel buffer i.e written successfully!');
-                }else{
-                    socket.pause();
+
+        if(hf.isJsonString(data)) {
+            let url;
+            if (hf.checkIfRequestHasVote(data)) {
+                url = 'http://localhost:8080/setVote';
+            } else {
+                url ='http://localhost:8080/getMapInfo';
+            }
+            hf.sendRequest(url, data, res => {
+                if (res) {
+                    var is_kernel_buffer_full = socket.write(JSON.stringify(res.data) + '\n');
+                    if(is_kernel_buffer_full){
+                        console.log('Data was flushed successfully from kernel buffer i.e written successfully!');
+                    } else {
+                        socket.pause();
+                    }
+                } else {
+                    console.log("Res was null");
                 }
-            })
-            .catch(error => {
-                console.error(error)
             });
+        }
     });
 
     socket.on('drain',function(){
@@ -236,9 +238,14 @@ client.on('data',function(data){
 
 // 87.78.129.86  | localhost
 
-const testClient = net.connect({host: '87.78.129.86', port: 3201}, () => {
+const testClient = net.connect({host: 'localhost', port: 3000}, () => {
     console.log('connected to server!');
-    testClient.write('Hello World Client!\r\n');
+    //testClient.write('Hello World Client!\r\n');
+    testClient.write(JSON.stringify({
+        "mapId": "keineBekannteMap1",
+        "name": "keinBekannterMapName1",
+        "userId": "keinBekannterUser1"
+    }));
     //test(testClient);
 });