Stream a Fetch Response Chunk by Chunk
Process a fetch response as it arrives, chunk by chunk, instead of buffering the whole file in memory. This is ideal for large files like videos or giant JSON datasets.
Instead of waiting for a large network request to complete, `ReadableStream` lets you process the response body as it arrives, chunk by chunk. This avoids buffering the entire payload in memory, improving performance and lowering memory usage. It's essential for streaming large media files or parsing massive JSON objects without blocking the main thread. The primary footgun is that `response.body.getReader()` locks the stream; you can't have multiple readers on a single stream without explicitly 'teeing' it.
Read the original → developer.mozilla.org
- #web apis
- #fetch
- #streams
- #performance
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