provider-http: streaming read() can revert to an older cached value after a partial update
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A pull request for this has already been merged.
- #188 by @dezlitz — merged
Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 88/100
- Issue type
- Bug
- Clarity
- Clearly specified
- Activity status
- Active
- Tech stack
- typescript
- Domain
- backend
Research direction
Start in packages/provider-http/src/provider.ts and read how currentSample and remember select and cache samples during reads. Add a regression test for the described read followed by an unrelated partial update; done when the read continues returning the newer value after that update.
Written by the indexing model from the issue text.
Description
From the GPT review of #89 (head 9002547), P2. packages/provider-http/src/provider.ts currentSample/remember. Steps: subscribe to /v and receive {"v":1}. Unsubscribe /v while /w keeps the channel open. Receive {"v":2,"w":0}: read(['/v']) returns 2. Then receive {"w":3}: the same read returns 1, because v=2 was never written to sampleCache. Fix: when a newer payload is used to answer a read, cache the selected sample with that payload's seq. Add a test for a read followed by an unrelated partial update.
- Dominant language
- TypeScript
- Stars
- 0
- Forks
- 0
- Avg merge
- 10h 39m
- Merged PRs (30d)
- 38
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