51 lines
1.6 KiB
Markdown
51 lines
1.6 KiB
Markdown
|
# blob-to-buffer [![Build Status][travis-image]][travis-url] [![NPM Version][npm-image]][npm-url] [![NPM Downloads][downloads-image]][downloads-url]
|
||
|
|
|
||
|
|
#### Convert a Blob to a [Buffer](https://github.com/feross/buffer).
|
||
|
|
|
||
|
|
[](https://saucelabs.com/u/blob-to-buffer)
|
||
|
|
|
||
|
|
Say you're using the ['buffer'](https://github.com/feross/buffer) module on npm, or
|
||
|
|
[browserify](http://browserify.org/) and you're working with lots of binary data.
|
||
|
|
|
||
|
|
Unfortunately, sometimes the browser or someone else's API gives you a `Blob`. Silly
|
||
|
|
browser. How do you convert it to a `Buffer`?
|
||
|
|
|
||
|
|
Something with a goofy `FileReader` thingy... Time to Google for it yet again... There must be a better way!
|
||
|
|
|
||
|
|
***There is! Simply use this module!***
|
||
|
|
|
||
|
|
Works in the browser. This module is used by [WebTorrent](http://webtorrent.io)!
|
||
|
|
|
||
|
|
### install
|
||
|
|
|
||
|
|
```
|
||
|
|
npm install blob-to-buffer
|
||
|
|
```
|
||
|
|
|
||
|
|
### usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
var toBuffer = require('blob-to-buffer')
|
||
|
|
|
||
|
|
// Get a Blob somehow...
|
||
|
|
var blob = new Blob([ new Uint8Array([1, 2, 3]) ], { type: 'application/octet-binary' })
|
||
|
|
|
||
|
|
var buffer = toBuffer(blob, function (err, buffer) {
|
||
|
|
if (err) throw err
|
||
|
|
|
||
|
|
buffer[0] // => 1
|
||
|
|
buffer.readUInt8(1) // => 2
|
||
|
|
})
|
||
|
|
```
|
||
|
|
|
||
|
|
### license
|
||
|
|
|
||
|
|
MIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).
|
||
|
|
|
||
|
|
[travis-image]: https://img.shields.io/travis/feross/blob-to-buffer/master.svg
|
||
|
|
[travis-url]: https://travis-ci.org/feross/blob-to-buffer
|
||
|
|
[npm-image]: https://img.shields.io/npm/v/blob-to-buffer.svg
|
||
|
|
[npm-url]: https://npmjs.org/package/blob-to-buffer
|
||
|
|
[downloads-image]: https://img.shields.io/npm/dm/blob-to-buffer.svg
|
||
|
|
[downloads-url]: https://npmjs.org/package/blob-to-buffer
|