file2md5

file2md5 is a browser-side implementation of file conversion to md5 format based on SparkMD5, which supports typescript friendly.

Features

• Supports Typescript

• Promise API

• All browsers supported

Installation

Npm

npm install file2md5 --save

Yarn

yarn add file2md5

Usage

Html:

<input type="file" id="upload" />

Javascript:

import file2md5 from 'file2md5';

const el = document.querySelector('#upload');
const onProgress = progress => console.log('progress', progress);

const onChange = async e => {
    if (!e.target.files || !e.target.files[0]) {
        return;
    }

    const file = e.target.files[0];
    const abort = file2md5.abort;

    // Assuming that it takes 3s to convert the md5 value,
    // the simulation terminates the operation at 1s
    setTimeout(
        () => abort(),
        1000
    );

    try {
        const md5 = await file2md5(file, {chunkSize: 3 * 1024 * 1024, onProgress});
        console.log('md5 string:', md5); // d18bb890790c4335e57eadbedc801c2c
    }
    catch (e) {
        console.error('error', e);
    }
};

el.addEventListener(
    'change',
    onChange,
    false
);

You can call the abort method to terminate before the end of the file conversion to the md5 value.

const abort = file2md5.abort;

abort();

Params

Name	Required	Description	Type	Default value
file	true	The file is used to convert md5 format.	File	-
options	false	Optional configuration items.	IOptions	{}

Options

Name	Required	Description	Type	Default value
chunkSize	false	The conversion is performed in chunks, so you can customize the size of each chunk.	number	2 * 1024 * 1024
raw	false	If raw is true, the result as a binary string will be returned instead.	boolean	false
onProgress	false	Callback function for monitoring progress.	(progress: number) => unknown	-

Browser compatibility

• IE10+
• Chrome latest 2 versions
• Firefox latest 2 versions
• Microsoft Edge latest 2 versions
• Safari latest 2 versions

License

file2md5 is licensed under a MIT License