https://github.com/lucacasonato/base64_streams

https://github.com/lucacasonato/base64_streams

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• Host: GitHub
• URL: https://github.com/lucacasonato/base64_streams
• Owner: lucacasonato
• Created: 2023-09-25T05:23:43.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-09-25T06:33:46.000Z (about 1 year ago)
• Last Synced: 2024-10-25T15:48:35.329Z (18 days ago)
• Language: TypeScript
• Size: 7.81 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
This is an implementation of a streaming Base64 encoder and decoder for

JavaScript, with the actual encoding and decoding logic being handled by

`Uint8Array.fromBase64()` and `Uint8Array.prototype.toBase64()` from the

[proposal-arraybuffer-base64](https://github.com/tc39/proposal-arraybuffer-base64).

The streaming decoder supports streaming decoding and encoding. It correctly

handles padding and whitespace. There is both a WHATWG TransformStream, and a

sync-Iterator based API available.

You can see the implementations for the various APIs in:

- [`Base64DecoderStream` WHATWG TransformStream](./src/whatwg/decoder.ts)

- [`Base64EncoderStream` WHATWG TransformStream](./src/whatwg/encoder.ts)

- [`decodeBase64()` sync iterator](./src/iterator/decoder.ts)

- [`encodeBase64()` sync iterator](./src/iterator/encoder.ts)

To play with it:

```

$ deno repl -A --eval="import { Base64DecoderStream, Base64EncoderStream, decodeBase64, encodeBase64 } from './index.ts'"

Deno 1.37.0

exit using ctrl+d, ctrl+c, or close()

>

```

To run tests, run `deno test`.