How to add UI for your RAG?!?
Just built some FastAPI SSE backend streaming LLM responses token-by-token, after i got some free time. Two things broke in production that worked fine locally ๐: nginx buffers SSE by default. The stream was delivering locally, dead silent on Railway. proxy_buffering off, two hours later, fixed. The LLM API returns an empty_retrieval event when no docs match. I wasn't handling it, so theโฆ
We haven't written up this one. Dev.to has the full story โ the link below goes straight to it.
