Parallelize SSR fetches on the home page#2416
Merged
Simek merged 1 commit intoreact-native-community:mainfrom Apr 29, 2026
Merged
Parallelize SSR fetches on the home page#2416Simek merged 1 commit intoreact-native-community:mainfrom
Simek merged 1 commit intoreact-native-community:mainfrom
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The home page was awaiting five ssrFetch calls sequentially in getServerSideProps, then awaiting each .json() one at a time. Fan them out with Promise.all so the waterfall collapses into a single roundtrip's worth of latency.
Simek
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Apr 29, 2026
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Hey @azizbecha, thanks nice catch and improvement! 👌
We already use parallel promises for package pages fetches, but I have missed this on the home page.
Would you be interested in optimizing also the Popular page fetches? Can be done in a separate PR.
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Summary
pages/index.tsxwas awaiting fivessrFetchcalls one after another insidegetServerSideProps, then awaiting each.json()sequentially. The fetches don't depend on each other.Promise.allfor both the requests and the JSON parses, so the waterfall collapses into a single roundtrip's worth of latency on the home page.Test plan
bunx oxlint pages/index.tsx— cleanbunx oxfmt --check pages/index.tsx— cleanbun startand load/locally; dev-server log shows the five/api/libraries...requests issued in the same window (~470ms each, overlapping) instead of stacked sequentially. Warm renders return in ~24-185ms with all five API calls completing in ~5-15ms each, in parallel. No runtime errors.