iterable-reader

Convert Uint8Array iterables to Go-like Reader interface.

import { createReadStream } from 'node:fs';
import { createIterableReader } from '@intrnl/iterable-reader';
let stream = createReadStream('./file.txt');
let reader = createIterableReader(stream);
let chunk = new Uint8Array(512);
await reader.read(chunk);

Working with Web Streams

Unfortunately browsers hasn't implemented using ReadableStream directly as an async iterator, in the meantime, you could use this to convert them into one.

function createStreamIterator (stream) {
 // return if browser already supports async iterator in stream
 if (Symbol.asyncIterator in stream) {
 return stream[Symbol.asyncIterator]();
 }
 let reader = stream.getReader();
 return {
 [Symbol.asyncIterator] () {
 return this;
 },
 next () {
 return reader.read();
 },
 return () {
 reader.releaseLock();
 },
 throw () {
 reader.releaseLock();
 },
 };
}