Use dotenv package for environment variables

.env.example

@@ -0,0 +1,2 @@
+YT3_API_KEY=YOUR_YOUTUBE_DATA_API_V3_KEY
+DM_API_KEY=YOUR_DAILYMOTION_API_KEY

.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 index_old.html
 app-env
+.env

README.md

@@ -39,8 +39,7 @@ Install Dependencies
 npm install
 ```
 
-Obtain API keys for YouTube Data API V3 and Dailymotion SDK (Optional) and
-source it to your path as YT3_API_KEY and DM_API_KEY respectively
+Create a `.env` file and add API keys for YouTube Data API V3 and Dailymotion SDK (Optional) as YT3_API_KEY and DM_API_KEY
 
 Run the server
 ```

package.json

@@ -13,6 +13,7 @@
   "author": "Kyle Lim",
   "license": "ISC",
   "dependencies": {
+    "dotenv": "8.1.0",
     "express": "*",
     "lodash": "^4.17.11",
     "socket.io": "*"

server.js

@@ -1,3 +1,5 @@
+require('dotenv').config();
+
 var express = require('express');
 var app = express();
 var server = require('http').createServer(app);
@@ -8,8 +10,8 @@ rooms = [];
 // Store all of the sockets and their respective room numbers
 userrooms = {}
 
-YT3_API_KEY = process.env.YT3_API_KEY
-DM_API_KEY = process.env.DM_API_KEY
+YT3_API_KEY = process.env.YT3_API_KEY;
+DM_API_KEY = process.env.DM_API_KEY;
 
 // Set given room for url parameter
 var given_room = ""