This post was originally published on — Look up all WebSocket close codes including 1006, 1000, 1001, and exchange-specific codes.
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WebSocket closed with 1006: why trading bots lose connection without an error code
- ▸ Fast triage table (what to check first)
- ▸ What code 1006 actually means
- ▸ Why 1006 is dangerous for trading bots
- ↳ Do not try to "fix" 1006 at the WebSocket level
- ↳ Do not log 1006 as a critical error
- ↳ Do not assume 1006 means the exchange is down
- ↳ 1) Application-level heartbeat (ping/pong)
- ↳ 2) Singleflight reconnect with jittered backoff
- ↳ 3) Bounded resync on reconnect
- ↳ 4) Circuit breaker for persistent 1006
- ▸ What to log
- ▸ Related tools
- ▸ Resources
- ▸ Checklist (copy/paste)
- ▸ Free Tools for Trading Bot Reliability
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