Replit
api
Multipart Form File Upload Issues on Replit
File upload fails with 400 Bad Request or files aren't received. Multipart form handling has issues.
Multipart form configuration and size limits require proper setup.
Error Messages You Might See
Current request is not a multipart request
File size exceeds maximum allowed size
400 Bad Request
Common Causes
- File size exceeds max upload limit
- Form content-type not multipart/form-data
- @RequestParam name doesn't match form field
- Multipart request not enabled in config
- Memory limit exceeded for large files
How to Fix It
Set spring.servlet.multipart.max-file-size=10MB and max-request-size=10MB in application.yml. Use @RequestParam("fileField") MultipartFile file. Set @RequestMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE). For large files, stream to disk instead of memory. Check client sends correct content-type header.
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Get HelpFrequently Asked Questions
How do I increase file upload size limit?
In application.yml: spring.servlet.multipart.max-file-size=50MB
Should I store files on disk or database?
Disk for large files, database for small. Use Replit's file system