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Dev.to
Dev.to
7/9/2026
The original title is "Streaming LLM Responses in Django + React: The Full Implementation"

The original title is "Streaming LLM Responses in Django + React: The Full Implementation"

Original: Streaming LLM Responses in Django + React: The Full Implementation

Short summary

A full-stack tutorial for streaming LLM responses in Django + React using Server-Sent Events (SSE) instead of WebSockets. Covers the Django StreamingHttpResponse generator pattern with Anthropic's Claude API, React's EventSource consumer, and critical production gotchas like Nginx buffering and CSRF handling. Includes working code for both server and client sides.

  • SSE is the right primitive for one-directional LLM streaming — simpler than WebSockets
  • Django StreamingHttpResponse + Anthropic SDK yields tokens as SSE chunks
  • Production gotchas: X-Accel-Buffering header for Nginx, CSRF token via X-CSRFToken header

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