I am migrating DataBridge from SOAP to web API calls. As a part of this migration, I need to change exception handling. It turns out that we receive much less details from the web API than from the WCF service.

Here is an example when I try to insert a new list item with a name that already exists.

This is the exception I get from a SOAP call:

And this is what I get with an API call:

I doubled checked with Postman, this is really all I get in the body of the response:

And the X-ErrorMessage header:

Whereas in AppInsights, you have a much more helpful message:

End-to-end transaction details - Microsoft Azure

It would be nice to have this same message included in the JSON response.