58 lines
2.1 KiB
Markdown
58 lines
2.1 KiB
Markdown
---
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model: openai/gpt-5.6-sol
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service: opencode
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timestamp: 2026-08-26T22:26:00Z
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git_ref: 5f631e19
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diff_cmd: git diff HEAD~1..HEAD
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---
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## Prompt
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The user reported that selecting
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`NVDAUSDT.USDTM.PERP.BINANCE` connected Binance's USD-M
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websocket but never loaded the feed or downstream chart. They asked
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OpenCode to compare Binance's API changelog with piker's FQME and feed
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code, diagnose the failure, and solve it.
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The user clarified that future provider failures must raise loudly
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instead of silently blocking feed and chart startup. They also confirmed
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the same hang from
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`piker -l info --pdb chart nvdausdt.usdtm.perp.binance`.
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## Generated code
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> `git diff HEAD~1..HEAD -- piker/brokers/binance/feed.py`
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Routes USD-M book-ticker and aggregate-trade data through Binance's new
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`/public` and `/market` websocket paths, merges both sockets into the
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existing quote stream, accepts the new `st` aggregate-trade field, and
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requires both stream classes before declaring startup complete. It also
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removes the misleading missing-provider warning, derives feed mode from
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resolved pair metadata, and raises `DataUnavailable` for connection or
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live-data startup timeouts.
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> `git diff HEAD~1..HEAD -- piker/brokers/binance/venues.py`
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Defines Binance's current public and market USD-M websocket endpoints
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and makes the market endpoint the regular futures websocket API root.
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> `git diff HEAD~1..HEAD -- piker/data/_web_bs.py`
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Adds an optional connection deadline to `open_autorecon_ws()` so callers
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can fail context entry when repeated websocket handshakes never become
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connected.
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> `git diff HEAD~1..HEAD -- tests/test_binance.py`
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Adds regressions for exact Binance stream routing, silent live-data
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startup, silent websocket connection startup, and the current USD-M
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aggregate-trade payload schema.
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## Verification output
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`pytest -q tests/test_binance.py` passes all four tests. Compile checks,
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focused Ruff fatal-error checks, and `git diff --check` pass. Live probes
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through piker's merged stream received both required stream classes and
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returned normalized trade quotes for `NVDAUSDT` USD-M and `BTCUSDT`
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spot.
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