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https://github.com/elastic/kibana.git
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0ab24e566c
- Originally Kibana's `http` service did not support receiving streams, that's why we used plain `fetch` for this. This has been fixed in #158678, so this PR updates the streaming helpers to use Kibana's `http` service from now on. - The PR also breaks out the response stream code into its own package and restructures it to separate client and server side code. This brings down the `aiops` bundle size by `~300KB`! 🥳 - The approach to client side throttling/buffering was also revamped: There was an issue doing the throttling inside the generator function, it always waited for the timeout. The buffering is now removed from `fetchStream`, instead `useThrottle` from `react-use` is used on the reduced `data` in `useFetchStream`. Loading log rate analysis results got a lot snappier with this update!
44 lines
1.1 KiB
TypeScript
44 lines
1.1 KiB
TypeScript
/*
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* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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* or more contributor license agreements. Licensed under the Elastic License
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* 2.0; you may not use this file except in compliance with the Elastic License
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* 2.0.
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*/
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import type { Headers } from '@kbn/core-http-server';
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function containsGzip(s: string) {
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return s
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.split(',')
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.map((d) => d.trim())
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.includes('gzip');
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}
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/**
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* Returns whether request headers accept a response using gzip compression.
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*
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* @param headers - Request headers.
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* @returns boolean
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*/
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export function acceptCompression(headers: Headers) {
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let compressed = false;
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Object.keys(headers).forEach((key) => {
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if (key.toLocaleLowerCase() === 'accept-encoding') {
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const acceptEncoding = headers[key];
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if (typeof acceptEncoding === 'string') {
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compressed = containsGzip(acceptEncoding);
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} else if (Array.isArray(acceptEncoding)) {
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for (const ae of acceptEncoding) {
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if (containsGzip(ae)) {
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compressed = true;
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break;
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}
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}
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}
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}
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});
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return compressed;
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}
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