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js-file_downloader--emon

v1.0.2

Published

This is a simple file downloader package for javascript

Downloads

33

Readme

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

Returns

  • If successful, returns the downloaded file
  • If an error occurs, returns the error message.

Response

| Status | Description | | ------ | -------------------------------- | | 200 | OK | | 400 | URL is required/URL is not valid |

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Author

  • [Md Wahiduzzaman Emon]

Contributing

  • Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
  • Please make sure to update tests as appropriate.