Félix Malfait
eefc5c1914
Drop @ai-sdk/react and resumable-stream in favor of a unified GraphQL SSE subscription for all agent chat events (token streaming, message persistence, queue updates). This makes the architecture server-driven and eliminates the class of bugs caused by dual-state (AI SDK internal state vs Jotai atoms). Key changes: - Backend: publish UIMessageChunks via Redis PubSub instead of HTTP SSE + resumable-stream. New AgentChatEventPublisherService, subscription resolver, and unified POST /:threadId/message endpoint (server decides queue vs stream). - Frontend: new useAgentChatSubscription hook bridges graphql-sse events into readUIMessageStream (from ai package) for chunk accumulation. Optimistic rendering preserves user messages during streaming. SSE client recycling triggers automatic resubscription. - Queue: messages sent during active streaming are placed directly in queue atoms (no flash). Server auto-flushes next queued message after stream ends. Made-with: Cursor
Run yarn dev while server running on port 3000