The Knox Webhook Notification APIs have error codes that provide more insight into any issues you might encounter. The following tables describe the error codes:
Create subscription
| Code |
Message |
Description |
| 400 |
Bad request |
Validation error. Check the message contents for further information. |
Load subscription
| Code |
Message |
Description |
| 404 |
Not found |
No subscription found. Check whether the event subscription was properly registered. |
Update subscription
| Code |
Message |
Description |
| 400 |
Bad request |
Validation error. Check the message contents for further information. |
Delete subscription
| Code |
Message |
Description |
| 404 |
Not found |
The subscription you’re trying to delete was not found. |
Standard HTTP error codes
The following table lists the most common HTTP error codes:
| Code |
Name |
Description |
| 400 |
Bad request |
The client has issued an invalid request. This code is commonly used to specify validation errors in a request payload. |
| 401 |
Unauthorized |
Authorization for the API is required, but the request was not authenticated. |
| 403 |
Forbidden |
The request was authenticated but does not have the appropriate permissions, or the requested resource cannot be found. |
| 404 |
Not found |
Specifies that the requested path does not exist. |
| 406 |
Not acceptable |
The client has requested a MIME type through the Accept header for a value not supported by the server. |
| 422 |
Unprocessable Entity |
The client has made a valid request, but the server cannot process it. This response is often returned for APIs when certain limits are exceeded. |
| 429 |
Too many requests |
The client has exceeded the number of requests allowed for a given time window. |
| 500 |
Internal server error |
An unexpected server error has ocurred. |
| 501 |
Not implemented |
The client request was valid and understood by the server, but the requested feature has yet to be implemented. |