download a file with axios code example

Example 1: download file axios nodejs

export async function downloadFile(fileUrl: string, outputLocationPath: string) {
  const writer = createWriteStream(outputLocationPath);

  return Axios({
    method: 'get',
    url: fileUrl,
    responseType: 'stream',
  }).then(response => {

    //ensure that the user can call `then()` only when the file has
    //been downloaded entirely.

    return new Promise((resolve, reject) => {
      response.data.pipe(writer);
      let error = null;
      writer.on('error', err => {
        error = err;
        writer.close();
        reject(err);
      });
      writer.on('close', () => {
        if (!error) {
          resolve(true);
        }
        //no need to call the reject here, as it will have been called in the
        //'error' stream;
      });
    });
  });
}
This way, you can call downloadFile(), call then() on the returned promise, and making sure that the downloaded file will have completed processing.

Or, if you use a more modern version of NodeJS, you can try this instead:

import * as stream from 'stream';
import { promisify } from 'util';

const finished = promisify(stream.finished);

export async function downloadFile(fileUrl: string, outputLocationPath: string): Promise<any> {
  const writer = createWriteStream(outputLocationPath);
  return Axios({
    method: 'get',
    url: fileUrl,
    responseType: 'stream',
  }).then(async response => {
    response.data.pipe(writer);
    return finished(writer); //this is a Promise
  });
}

Example 2: downloading image using axios

/* by Kindacode.com */
const fs = require('fs');
const path = require('path');
const axios = require('axios').default;

// fileUrl: the absolute url of the image or video you want to download
// downloadFolder: the path of the downloaded file on your machine
const downloadFile = async (fileUrl, downloadFolder) => {
  // Get the file name
  const fileName = path.basename(fileUrl);

  // The path of the downloaded file on our machine
  const localFilePath = path.resolve(__dirname, downloadFolder, fileName);
  try {
    const response = await axios({
      method: 'GET',
      url: fileUrl,
      responseType: 'stream',
    });

    const w = response.data.pipe(fs.createWriteStream(localFilePath));
    w.on('finish', () => {
      console.log('Successfully downloaded file!');
    });
  } catch (err) {
    throw new Error(err);
  }
}; 

// Testing
const IMAGE_URL =
  'https://www.kindacode.com/wp-content/uploads/2021/01/test.jpg';
downloadFile(IMAGE_URL, 'download');

const VIDEO_URL =
  'https://www.kindacode.com/wp-content/uploads/2021/01/example.mp4';
downloadFile(VIDEO_URL, 'download');