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413
Client Error

413 Payload Too Large

The request entity is larger than the server is willing to process.

Definition (RFC 9110)

HTTP status code 413 413 Payload Too Large is defined in RFC 9110 (HTTP Semantics), Section 15.5.14 — the current authoritative specification for HTTP semantics, published June 2022, which obsoletes the older RFC 7231 and RFC 2616.

Description

The 413 Payload Too Large status code indicates that the server refuses to process a request because the request payload is larger than the server is willing or able to process.

Common Causes

  • File upload exceeds size limit
  • POST body too large
  • nginx client_max_body_size too small

How to Fix

  • Reduce file/payload size
  • Increase server limits (client_max_body_size in nginx)
  • Implement chunked uploads for large files

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Related Status Codes

400
400 Bad Request
The server cannot process the request due to malformed syntax.
 401
401 Unauthorized
Authentication is required and has failed or not been provided.
 402
402 Payment Required
402 Payment Required — code reserved for future use, but currently used by some APIs to signal "payment needed".
 403
403 Forbidden
The server understood the request but refuses to authorize it.
 404
404 Not Found
404 Not Found — the requested URL does not exist on the server. The most common client-error; signals search engines to remove the page from index.
 405
405 Method Not Allowed
The HTTP method used is not allowed for this resource.

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