The naive approach to creating a
ReadableStream
from a
Buffer
is to use the
ReadableStream
constructor and enqueue the entire array as a single chunk. For a large buffer, this may be undesirable as this approach does not "streaming" the data in smaller chunks.
const buf = Buffer.from("hello world");
const stream = new ReadableStream({
start(controller) {
controller.enqueue(buf);
controller.close();
To stream the data in smaller chunks, first create a
Blob
instance from the
Buffer
. Then use the
Blob.stream()
method to create a
ReadableStream
that streams the data in chunks of a specified size.
const buf = Buffer.from("hello world");
const blob = new Blob([buf]);
const stream = blob.stream();
The chunk size can be set by passing a number to the
.stream()
method.
const buf = Buffer.from("hello world");