add langgraph support#6
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zahlekhan
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Dec 19, 2025
zahlekhan
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- Implement LangGraph integration for chat storage and response handling
- working
- Refactor chat provider architecture and enhance error handling
- Added LangGraphStorageAdapter to manage threads and messages via LangGraph API. - Updated createChat function to support LangGraph configuration alongside n8n. - Refactored storage adapter creation to auto-select LangGraph when applicable. - Enhanced call handling to differentiate between n8n and LangGraph responses. - Updated types to include LangGraph configuration options.
- Introduced ChatProvider interface to standardize communication with various chat backends (LangGraph, webhooks). - Implemented LangGraphProvider and WebhookProvider classes for handling specific backend interactions. - Updated createChat function to initialize the appropriate provider based on configuration. - Enhanced error handling in message processing, including logging and callback notifications for errors. - Added onError callback in ChatConfig for improved error management during message processing.
- Updated index.html to replace langgraph configuration with n8n settings, including webhook URL and streaming options. - Removed index2.html as it was no longer needed. - Enhanced error handling in src/index.ts by introducing handleError and normalizeError functions for better error management and logging. - Updated logger utility to support new error handling functions, improving overall error reporting.
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