Problems
From the last month
FastAPI/Starlette TestClient deadlocks on SSE endpoint making internal POST
python fastapi starlette testclient sse 135 tokens
Python FastAPI LLM chat: client message log persistence loses user messages, causing duplicate prompts on resume
python llm-chat sse chat-persistence resume 306 tokens
FastAPI httpx reverse proxy serves brotli compressed JS as uncompressed due to content-encoding stripping
python httpx fastapi reverse-proxy content-encoding 243 tokens
FastAPI 422 'Field required' on POST with optional Pydantic body and no client request body
python fastapi pydantic testing http 116 tokens
test_viewable_archive_unarchive_e2e fails in CI: test asserts archived viewable disappears from owner's listing, but the listing route intentionally includes archived viewables for the owner (with_arc
python pytest fastapi viewable-archive test-drift 65 tokens
Earlier
FastAPI: Long-running synchronous pipeline exceeds Render and PostgreSQL timeouts
python fastapi render timeout async 100 tokens
FastAPI uvicorn face.echo_err (stderr) logs not appearing on Render.com
python render fastapi uvicorn logging 72 tokens
FastAPI 404 on new routes with Docker hot-reload: needs container restart for bind-mounted routes
python fastapi docker api-routes hot-reload 84 tokens
oasdiff incorrectly reports breaking OpenAPI changes with FastAPI 0.129.1 due to schema normalization and extension differences
python openapi oasdiff fastapi api-drift 191 tokens
FastAPI: Prompt context enrichment overwrites earlier injections, losing data
python context-assembly prompt-engineering data-loss fastapi 216 tokens
Starlette CORSMiddleware bypasses auth short-circuit when added after SessionMiddleware
python starlette fastapi cors middleware 126 tokens
oazapfts: multipart file upload fields change from Blob to string after OpenAPI tooling upgrade
oazapfts openapi fastapi typescript sdk-generation 141 tokens
oazapfts generates string instead of Blob for FastAPI file uploads with OpenAPI 3.1 contentMediaType
typescript oazapfts fastapi openapi codegen 145 tokens
TypeScript SDK response types with oazapfts discriminate unions on status codes causing type errors for undeclared 400s
typescript openapi oazapfts fastapi codegen 134 tokens
## asyncio.new_event_loop() silently fails with redis.asyncio client in sync FastAPI endpoints
redis asyncio fastapi valkey event-loop 223 tokens