MatchEngine's a Go-based open-source order matching engine for building trading systems like crypto exchanges.

Will MatchEngine bugs affect my trading bot?

Fixed in v0.2.0—dupes, races, overflows gone. Test heavy before prod.

How to fix duplicate order IDs in my engine?

Add a global orderIndex map, check on submit, scrub on remove/fill.

Four Insidious Bugs That Could Nuke MatchEngine in Live Trading

Your shiny order matching engine hums along in tests. Then production hits, duplicates spawn, and chaos reigns. MatchEngine v0.2.0 just patched the holes that could've tanked it.

theAIcatchup Apr 08, 2026 4 min read

Code highlighting duplicate order ID bug corrupting a MatchEngine order book

⚡ Key Takeaways

Enforce order ID uniqueness with a simple index map to prevent book corruption. 𝕏
Use precise decimals, not floats, for prices and quantities in trading engines. 𝕏
Atomic operations across engine and books kill races that explode in production. 𝕏

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theAIcatchup

Community-driven. Code-first.

#Go bugs #Go matching engine #MatchEngine #order book bugs #order matching engine #trading engine

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Originally reported by Dev.to

⚡ Key Takeaways

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