python data_error ai_generated true

starlette.datastructures.UploadFile: 413 Request Entity Too Large

ID: python/fastapi-upload-file-size-error

Also available as: JSON · Markdown · 中文
80%Fix Rate
84%Confidence
0Evidence
2024-07-08First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The uploaded file exceeds the server's maximum allowed size, often due to default limits in the web server or framework.

generic

中文

上传的文件超过服务器允许的最大大小，通常是由于Web服务器或框架的默认限制。

Workarounds

  1. 90% success 
    Configure the server limit, e.g., in Uvicorn: uvicorn app:app --limit-max-request-size 10485760
  2. 95% success 
    Check file size before processing: if file.size > MAX_SIZE:\n    raise HTTPException(413)

Dead Ends

Common approaches that don't work:

  1. 80% fail

    Reading the entire file into memory before checking size can cause memory issues.

  2. 60% fail

    Increasing the limit globally may affect other parts of the app.