Js-file_downloader--emon NPM

JavaScript File Downloader

JavaScript File Downloader is an open-source library that allows you to download files from a given URL in JavaScript. This library can be used with any JavaScript framework.

Getting Started

Prerequisites

A web browser that supports ECMAScript 6 (ES6)

Installation

To use JavaScript File Downloader in your project, you can download the jsFileDownloader.js file and include it in your project. Alternatively, you can install it using npm:

npm i js-file_downloader--emon --save

yarn add js-file_downloader--emon

Importing

import jsFileDownloader from "js-file_downloader--emon";

How to use it in your project

use this function in click event or any event

jsFileDownloader(url, fileName);

if you want to see the progress of the download, you can pass a function as the third parameter

jsFileDownloader(url, fileName, (progress) => {
  console.log(progress);
});

if you want to use it with async/await

try {
  const response = await jsFileDownloader(url, name, (progress) => {
    console.log(progress);
  });
  console.log(response);
} catch (error) {
  console.log(error);
}

if you want to use it with promise

jsFileDownloader(url, name, (progress) => {
  console.log(progress);
})
  .then((response) => {
    console.log(response);
  })
  .catch((error) => {
    console.log(error);
  });

Parameters

Parameter	Type	Description
url*	string(required)	The URL of the file to be downloaded
fileName	string	The name with which the downloaded file will be saved
progress	function	A function that will be called with the download progress

Functionality

Tries to download a file from the given URL
Checks if the url contains "http://" and replaces it with "https://"
Initializes the necessary variables and arrays
Reads the response body in chunks
Calculates the download progress and calls the progress function with the progress value
Combines the chunks and creates a blob URL
Creates a link element, assigns the blob URL and file name, and clicks on it to download the file
Revokes the blob URL