Add Response Logik for socket. Should give now real responses. (d7b249f7) · Commits · Dennis Willers / Voting

helpFunctions.js

0 → 100644

+37 −0

Original line number	Diff line number	Diff line
		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

+22 −15

Original line number	Diff line number	Diff line
		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

		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();
		}
		})
		.catch(error => {
		console.error(error)
		} else {
		console.log("Res was null");
		}
		});
		}
		});

		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);
		});