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How to download a file using Node.js?
We can download file using Node.js by either using third-party libraries or using some inbuilt packages.
Method 1: Using 'https' and 'fs' module
We can use the http GET method to fetch the files that are to be downloaded.
The createWriteStream() method from fs module creates a writable stream and receives the argument with the location of the file where it needs to be saved.
pipe() is another method from fs that reads the data from the readable stream and writes it onto the writable stream and file.
Example 1
Create a file with the name downloadFile.js and copy the following code snippet. After creating the file, use the command node downloadFile.js to run this code as shown in the example below −
const https = require("https");
const fs = require("fs");
// URL of the image
const url = "https://www.tutorialspoint.com/cg/images/cgbanner.jpg";
https.get(url, (res) => {
const path = "downloaded-image.jpg";
const writeStream = fs.createWriteStream(path);
res.pipe(writeStream);
writeStream.on("finish", () => {
writeStream.close();
console.log("Download Completed!");
})
})Output
C:\home
ode>> node downloadFile.js Download Completed!
Method 2: Using 'download' Library
We can use the third-party 'download' library to install its dependency and use it for downloading files.
Installation
npm install download
Example 2
// Download File using 3rd party library
// Importing the download module
const download = require('download');
// Path of the image to be downloaded
const file = '/home/mayankaggarwal/mysql-test/tutorials_point_img.jpg';
// Path to store the downloaded file
const filePath = `${__dirname}/files`;
download(file,filePath)
.then(() => {
console.log('File downloaded successfully!');
})Output
C:\home
ode>> node downloadFile.js File downloaded successfully!
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