HTTP 201 Created vs 406 Not Acceptable
HTTP 201 (Created) is a 2xx Success response, while 406 (Not Acceptable) is a 4xx Client Error response. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. In contrast, 406 means that the server cannot produce a response matching the Accept headers sent by the client.
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 server cannot produce a response matching the Accept headers sent by the client.
When You See It
When requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
How to Fix
Adjust the Accept header to a format the server supports.
Key Differences
201 is a 2xx Success response, while 406 is a 4xx Client Error response.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 406: The server cannot produce a response matching the Accept headers sent by the client.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 406 when when requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
When to Use Which
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 406 (Not Acceptable): Adjust the Accept header to a format the server supports.