HTTP 307 Temporary Redirect vs 501 Not Implemented
HTTP 307 (Temporary Redirect) is a 3xx Redirection response, while 501 (Not Implemented) is a 5xx Server Error response. 307 indicates that the resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed. In contrast, 501 means that the server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
Description
The resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed.
When You See It
When you need a temporary redirect that preserves the request method (POST stays POST).
How to Fix
Follow the Location header using the same HTTP method.
Description
The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
When You See It
When using an HTTP method (like PATCH) that the server doesn't support.
How to Fix
Use a different HTTP method that the server supports. Check server documentation.
Key Differences
307 is a 3xx Redirection response, while 501 is a 5xx Server Error response.
HTTP 307: The resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed.
HTTP 501: The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
You encounter 307 when when you need a temporary redirect that preserves the request method (POST stays POST).
You encounter 501 when when using an HTTP method (like PATCH) that the server doesn't support.
When to Use Which
For 307 (Temporary Redirect): Follow the Location header using the same HTTP method. For 501 (Not Implemented): Use a different HTTP method that the server supports. Check server documentation.