mp3 conversion - done.

added nodemon for dev efficiency.

package.json

@@ -4,7 +4,8 @@
   "description": "A simple Node app built on fastify, instantly up and running.",
   "main": "server.js",
   "scripts": {
-    "start": "node server.js"
+    "start": "node server.js",
+    "dev": "nodemon server.js"
   },
   "dependencies": {
     "dotenv": "^11.0.0",
@@ -33,5 +34,8 @@
     "node",
     "glitch",
     "express"
-  ]
+  ],
+  "devDependencies": {
+    "nodemon": "^2.0.15"
+  }
 }

public/entry/script.js

@@ -95,7 +95,7 @@ function submitForm(event) {
 
   //
   var request = new XMLHttpRequest();
-  request.open("POST", "/");
+  request.open("POST", "/entry");
   request.send(fd);
 
   //

server.js

@@ -2,7 +2,7 @@
 require('dotenv').config();
 
 //ffmpeg
-var ffmpeg = require('ffmpeg');
+var ffmpeg = require('fluent-ffmpeg');
 
 //nextcloud client
 const { Client, Server, GetFilesRecursivelyCommand, CommandStatus } = require("nextcloud-node-client");
@@ -18,8 +18,8 @@ const server = new Server({
 const path = require("path");
 const fs = require('fs').promises;
 const util = require('util');
-const { pipeline } = require('stream');
+// const { pipeline } = require('stream');
-const pump = util.promisify(pipeline);
+// const pump = util.promisify(pipeline);
 
 //uuid
 const {
@@ -52,19 +52,66 @@ var io = require("socket.io")(fastify.server, {
   pingTimeout: 3000
 });
 
-//'get'
+//view '/'
 fastify.get("/", function (request, reply) {
   reply.view("/src/pages/parade.hbs", {});
 });
 
+//view '/entry'
 ["/entry", "/entry/"].forEach(function(path) {
   fastify.get(path, function (request, reply) {
     reply.view("/src/pages/entry.hbs", {});
   });
 });
 // --> https://stackoverflow.com/a/40899275
-// all the regex doesn't work... last resort.
+// all the regex didn't work for me -- a 'last resort' method
 
+//view '/entry (post)'
+fastify.post("/entry", async function (request, reply) {
+
+  // stores files to tmp dir and return paths
+  const files = await request.saveRequestFiles();
+  let audiofile = files.find(f => f.fieldname == 'audiofile');
+  let pixelfile = files.find(f => f.fieldname == 'pixels');
+  let tmpdir = path.dirname(audiofile.filepath);
+  // console.log(audiofile.fields.message.value);
+
+  //convert to mp3
+  function converter() {
+   return new Promise((resolve, reject) => {
+     //
+     let outputFile = tmpdir + "/converted.mp3";
+     // --> https://stackoverflow.com/a/36109219 (a quick tip on fluent-ffmpeg)
+     ffmpeg()
+     .addInput(audiofile.filepath)
+     .on("error", function(err) {
+       reject(err);
+     })
+     .on("end", function() {
+       resolve(outputFile);
+     })
+     .outputOptions('-b:a 192000')
+     .output(outputFile)
+     .run();
+   });
+  }
+  await converter();
+  // console.log(await fs.readdir(tmpdir));
+
+  //upload
+  const client = new Client(server);
+
+  //create unique folder ==> timestamp + uuid
+  const folder = await client.createFolder("Storage/public/sound-parade/" + moment().tz('Asia/Seoul').format('YYYYMMDD-HHmmss - ') + uuidv1());
+
+  const file = await folder.createFile("audio.mp3", await fs.readFile(tmpdir + '/converted.mp3'));
+  const text = await folder.createFile("message.txt", Buffer.from(audiofile.fields.message.value));
+  const image = await folder.createFile("pixels.png", await fs.readFile(pixelfile.filepath));
+
+  reply.view("/src/pages/entry.hbs", {});
+});
+
+//view '/list'
 ["/list", "/list/"].forEach(function(path) {
   fastify.get(path, async function (request, reply) {
 
@@ -125,54 +172,7 @@ fastify.get("/", function (request, reply) {
   });
 });
 
-//'post'
+//socket.io
-fastify.post("/", async function (request, reply) {
-
-  // stores files to tmp dir and return paths
-  const files = await request.saveRequestFiles();
-  let audiofile = files.find(f => f.fieldname == 'audiofile');
-  let pixelfile = files.find(f => f.fieldname == 'pixels');
-  // console.log(audiofile.fields.message.value);
-
-  const client = new Client(server);
-
-  //create unique folder ==> timestamp + uuid
-  const folder = await client.createFolder("Storage/public/sound-parade/" + moment().tz('Asia/Seoul').format('YYYYMMDD-HHmmss - ') + uuidv1());
-
-  //convert to mp3
-  let dir = path.dirname(audiofile.filepath);
-  function converter() {
-    return new Promise((resolve,reject) => {
-  		var process = new ffmpeg(audiofile.filepath);
-  		process.then(function (video) {
-  			// Callback mode
-  			video.fnExtractSoundToMP3(dir + '/converted.mp3', function (error, file) {
-  				if (!error) {
-            console.log('Audio file: ' + file);
-            resolve()
-          }
-  			});
-  		}, function (err) {
-  			console.log('Error: ' + err);
-  		});
-    });
-	}
-  await converter();
-
-  const file = await folder.createFile(audiofile.filename, await fs.readFile(audiofile.filepath));
-  // const text = await folder.createFile("message.txt", Buffer.from(audiofile.fields.message.value));
-  // const image = await folder.createFile(pixelfile.filename, await fs.readFile(pixelfile.filepath));
-
-  // //mp3 conversion
-  // console.log(await fs.readdir(dir));
-  //
-  //
-  console.log(await fs.readdir(dir));
-
-  reply.view("/src/pages/entry.hbs", {});
-});
-
-//
 var score = require("./public/score.json");
 
 //