feat: add decompress interceptor #3274
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adrianfalleiro
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Should we also handle rawdeflate? |
Yep, I'm using the existing |
Co-authored-by: Robert Nagy <ronagy@icloud.com>
lib/interceptor/decompress.js
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| this.#inputStream, | ||
| ...restDecoders, | ||
| this.#onDecompressStreamFinished.bind(this) | ||
| ).on('data', (chunk) => this.#handler.onData(chunk)) |
| } | ||
| } | ||
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| function createDecompressionInterceptor () { |
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We might need to support add the hinting of supported encoding in case implementers wants to limit this (I can only think for performance reasons).
They can pass a set of encodings supported, and the decompress decorator hints it using accept-encoding
| outputStream.on('data', (chunk) => { | ||
| if (!this.#handler.onData(chunk)) { | ||
| this.#inputStream.pause() | ||
| this.#inputStream.once('drain', () => this.#inputStream.resume()) |
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Those is wrong. Drain is signaled through the resume function sent to onHeaders
| // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Encoding | ||
| if (requestEncodings.length !== 0 && method !== 'HEAD' && method !== 'CONNECT' && !nullBodyStatus.includes(statusCode)) { | ||
| const decoders = [] | ||
| for (let i = 0; i < requestEncodings.length; ++i) { |
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| for (let i = 0; i < requestEncodings.length; ++i) { | |
| for (let i = requestEncodings.length - 1; i >= 0; --i) { |
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The other way round, right?
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Yeah, I made the same changes #3343.
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Thanks, I'll come back to this PR this week
| } | ||
| } | ||
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| return this.#handler.onHeaders( |
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Thanks for putting up this pr! I added this interceptor into my project.
This interceptor could also be used with fetch if you remove the content-encoding. My use case is I have a LoggingInterceptor that sends the response body to GCP logging. This worked great except one API sends a gzipped response. Now I have the following flow:
Decompress -> Logging -> Fetch
delete parsedHeaders['content-encoding'];
const newRawHeaders = Object.entries(parsedHeaders)
.flat()
.map((e) => Buffer.from(e));
return this.#handler.onHeaders(statusCode, newRawHeaders, resume, statusMessage);There was a problem hiding this comment.
Welp - I ended up having issues with the interceptor. Haven't been able to dive in yet, but I feel like my flow should work. Will try again once this is reviewed/merged.
Added a new interceptor to decompress the response body. I lifted some of the implementation from the way decompression is handled in the fetch client
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