HTTP 201 Created vs 203 Non-Authoritative Information
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Both HTTP 201 (Created) and 203 (Non-Authoritative Information) belong to the 2xx Success category. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. Meanwhile, 203 means that the response payload has been modified by a transforming proxy from the origin server's 200 response.
Description
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
When You See It
After successfully creating a new user, post, order, or other resource via a REST API.
How to Fix
No fix needed. Check the Location header for the URL of the new resource.
Description
The response payload has been modified by a transforming proxy from the origin server's 200 response.
When You See It
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
How to Fix
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Key Differences
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
When to Use Which
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content.