Software Development
AI Core/Middleware
Chat lifecycle middleware hooks: onConfig, onStart, onChunk, onBeforeToolCall, onAfterToolCall, onUsage, onFinish, onAbort, onError. Use for analytics, event firing, tool caching (toolCacheMiddleware), logging, and tracing. Middleware array in chat() config, left-to-right execution order. NOT onEnd/onFinish callbacks on chat() — use middleware.
- Publisher / source
- TanStack/ai (found on GitHub top repositories)
- Upstream record
- TanStack/ai
- Version
- Version 1
- Published
- Publication review
- Approved for publication
- Content fingerprint
2579c6f26dd5f4542e1870a6a6e6b7d66cd99ae5e818e7c884477fdc9ff1e3d1