Handling API Proxy Status Codes
In Mule 4, WSDL, RAML, HTTP, and HTTPS proxies handle errors and requests as described in the following tables. Mule 4 returns different error codes, depending on the proxy type, or no error code in response to problematic requests. This table shows whether or not Mule returns a 504, 400, or 404 error code when your WSDL, RAML, HTTP, and HTTPS proxy receives a problematic request.
| Error Code | WSDL | RAML | OAS | HTTP | HTTPS |
|---|---|---|---|---|---|
504: request timeout |
yes |
yes |
yes |
yes |
yes |
400: bad request (validation result) |
yes |
no |
yes |
no |
no |
404: resource not found |
no |
yes |
yes |
no |
no |
405: method not allowed in API spec |
no |
no |
yes |
no |
no |