javascript - How to download audio file from URL in Node.js? - Stack Overflow

admin管理员组

文章数量:1290949

How to download audio file from URL and store it in local directory? I'm using Node.js and I tried the following code:

var http = require('http');
var fs = require('fs');
var dest = 'C./test'
var url= '.wav'
function download(url, dest, callback) {
  var file = fs.createWriteStream(dest);
  var request = http.get(url, function (response) {
    response.pipe(file);
    file.on('finish', function () {
      file.close(callback); // close() is async, call callback after close pletes.
    });
    file.on('error', function (err) {
      fs.unlink(dest); // Delete the file async. (But we don't check the result)
      if (callback)
        callback(err.message);
    });
  });
}

No error occured but the file has not been found.

How to download audio file from URL and store it in local directory? I'm using Node.js and I tried the following code:

var http = require('http');
var fs = require('fs');
var dest = 'C./test'
var url= 'http://static1.grsites./archive/sounds/ic/ic002.wav'
function download(url, dest, callback) {
  var file = fs.createWriteStream(dest);
  var request = http.get(url, function (response) {
    response.pipe(file);
    file.on('finish', function () {
      file.close(callback); // close() is async, call callback after close pletes.
    });
    file.on('error', function (err) {
      fs.unlink(dest); // Delete the file async. (But we don't check the result)
      if (callback)
        callback(err.message);
    });
  });
}

No error occured but the file has not been found.

• javascript
• node.js
• audio

Share Improve this question Follow edited May 5, 2017 at 19:00 NathanOliver 181k2929 gold badges315315 silver badges430430 bronze badges asked May 5, 2017 at 17:27 RajasekarRajasekar 311 gold badge11 silver badge33 bronze badges 4

• It doesn't look like you actually call the download function, so nothing is happening. – Karl Reid Commented May 5, 2017 at 17:31
• Why do you have ' character before var and then the last line }' ? – bhantol Commented May 5, 2017 at 17:45
• None of the answers will work until those quotes are fixed. – bhantol Commented May 5, 2017 at 17:47
• Possible duplicate of How to download a file with Node.js (without using third-party libraries)? – Gabe Rogan Commented May 5, 2017 at 18:31

Add a ment  | 

4 Answers 4

Sorted by: Reset to default 6

Duplicate of How to download a file with Node.js (without using third-party libraries)?, but here is the code specific to your question:

var http = require('http');
var fs = require('fs');

var file = fs.createWriteStream("file.wav");
var request = http.get("http://static1.grsites./archive/sounds/ic/ic002.wav", function(response) {
  response.pipe(file);
});

Your code is actually fine, you just don't call the download function. Try adding this to the end :

download(url, dest, function(err){
   if(err){
     console.error(err);
   }else{
     console.log("Download plete");
   }
});

Also, change the value of dest to something else, like just "test.wav" or something. 'C./test' is a bad path.

I tried it on my machine and your code works fine just adding the call and changing dest.

Here is an example using Axios with an API that may require authorization

const Fs = require('fs');
const Path = require('path');
const Axios = require('axios');

async function download(url) {
    let filename = "filename";
    const username = "user";
    const password = "password"
    const key = Buffer.from(username + ':' + password).toString("base64");
    const path = Path.resolve(__dirname, "audio", filename)
    const response = await Axios({
        method: 'GET',
        url: url,
        responseType: 'stream',
        headers: { 'Authorization': 'Basic ' + key }
    })
    response.data.pipe(Fs.createWriteStream(path))
    return new Promise((resolve, reject) => {
        response.data.on('end', () => {
            resolve();
        })
        response.data.on('error', () => {
            reject(err);
        })
    })
}

This should work, I tested this with several sources from freesound, e.g. this one: https://cdn.freesound/previews/512/512246_7704891-hq.mp3

  public static async downloadAudio(audioSource: string, path: string) {
    const response = await axios.get(audioSource, {
      responseType: 'arraybuffer',
    });

    const arrayBuffer = response.data;
    const uintArray = new Uint8Array(arrayBuffer);
    const byteArray = Array.from(uintArray);
    const base64String = btoa(byteArray.map((char) => String.fromCharCode(char)).join(''));

    // choose an appropriate file writer here
    await Filesystem.writeFile({
      path: path,
      data: base64String,
      directory: Directory.Documents,
      recursive: true,
    });
  }

本文标签： javascriptHow to download audio file from URL in NodejsStack Overflow