blob2web-stream

blob2web-stream

Read W3C Blob & File objects as a Web stream.

Getting started

Load it however you want

require('blob2web-stream')
import from 'blob2web-stream'
<script src="https://wzrd.in/standalone/blob2web-stream@1.0.0"></script>
<script src="https://cdn.rawgit.com/jimmywarting/blob2web-stream/master/blob2web-stream"></script>

EXAMPLE

<script src="https://wzrd.in/standalone/blob2web-stream@1.0.0"></script>
<script src="https://wzrd.in/standalone/web-streams-polyfill@1.1.1"
	integrity="sha384-8EYry4yokV53rGHMFtPqeVlAPgxn8yxr/RvxC4bZt3vlneaDPzWkSJCvBDBTuXAV"
	crossorigin
></script>
<script>
    var myFile = new File(['parts'], 'filename.txt')
    var stream = myFile._createReadableByteStream()

    // You can do this
    stream.pipeTo(destination)
    // or this
    stream
        .pipeThrough(decompressorTransform)
        .pipeThrough(ignoreNonImageFilesTransform)
        .pipeTo(mediaGallery);

    // Or more manual work...

    // Web streams need a consumer to read the data unlike node-streams where
    // you get data from a data-event. Web streams it's also all promisifed.
    var reader = readableStream.getReader()
    var chunks = []

    var pump() =>
        reader.read().then( ({ value, done }) => {
            if (done)
                return chunks

            chunks.push(value) // Uint8array
            return pump()
        })


    pump().then(chunks => {
        console.log('done reading the hole file')
        console.log(chunks)
    })
</script>