Initial Push

API/index.js

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+/*
+  NodeJS Video Streamer - index.js 
+  By: Johnathon Slightham
+*/
+const express = require("express");
+const app = express();
+const fs = require("fs");
+const bodyParser = require('body-parser');
+const cors = require('cors');
+const mongoose = require('mongoose');
+const config = require('./DB.js');
+const postRoute = require('./post.route');
+const fileUpload = require('express-fileupload');
+
+printWelcome();
+// Connect to database
+mongoose.Promise = global.Promise;
+mongoose.connect(config.DB, { useNewUrlParser: true, useUnifiedTopology: true}).then(
+  () => {console.log('Connected to database') },
+  err => { console.log('Can not connect to the database: '+ err)}
+);
+
+// Express
+app.use(cors());
+app.use(bodyParser.urlencoded({extended: true}));
+app.use(bodyParser.json());
+app.use(fileUpload());
+app.use('/posts', postRoute);
+app.listen(8000, function () {
+  console.log("Express listening on port 8000");
+});
+
+/*
+  Get thumbnail for video with :id
+*/
+app.get("/thumbnails/:id", (req, res) => {
+  let id = req.params.id;
+  if(id)
+    res.sendFile(__dirname + "/thumbnails/" + id + ".jpg");
+  else
+    res.send(500);
+ });
+
+/*
+ Stream video with :id
+*/
+app.get("/video2/:id", (req, res) => {
+  
+  let id = req.params.id; // ID of video to be streamed
+
+    // Check if the header includes range
+    const range = req.headers.range;
+    if (!range) {
+      res.status(400).send("Missing range header");
+    }
+    
+    const videoPath = "videos/" + id + ".mp4"; // path of the video
+    const videoSize = fs.statSync("videos/" + id + ".mp4").size; // size of the video
+  
+    // Parse Range
+    const CHUNK_SIZE = 5 ** 6; // Half megabyte
+    let start = Number(range.replace(/\D/g, ""));
+    let end = Math.min(start + CHUNK_SIZE, videoSize - 1);
+  
+    // Create headers
+    const contentLength = end - start + 1;
+    const headers = {
+      "Content-Range": `bytes ${start}-${end}/${videoSize}`,
+      "Accept-Ranges": "bytes",
+      "Content-Length": contentLength,
+      "Content-Type": "video/mp4",
+    };
+  
+    // HTTP Status 206 for Partial Content
+    res.writeHead(206, headers);
+  
+    // create video read stream for this particular chunk
+    const videoStream = fs.createReadStream(videoPath, { start, end });
+  
+    // Stream the video chunk to the client
+    videoStream.pipe(res);
+  });
+
+
+function printWelcome(){
+  console.log("-----------------------------------");
+  console.log("NodeJS-Video-Streamer by jslightham");
+  console.log("Version 1.0");
+  console.log("-----------------------------------");
+  console.log();
+}