Specifying 4xx Details
I have a
POST request that may cause a duplicate entry if it were to execute. As a response, I send back 409 Conflict to make clear what happened.
However, I have some trouble adding some detail to explain what exactly happened.
First, I tried the following, which is not RFC 9110 compliant because it returns a simple text/plain:
return Conflict("A string explaining which property is already reserved");
When only returning Conflict();, the response body is application/problem+json as expected:
How can I add the "detail" property when returning Conflict() without altering the return type?5 Replies
I do know .NET 9 has changes the way 4xx errors are supplied, in a way that satisfies modern RFC. Maybe look those up first
Nick Chapsas
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The Right Way To Return API Errors in .NET
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Hello, everybody. I'm Nick, and in this video, I will show you the right or modern way of returning API...
Oh, interesting! I'll take a look. Also thanks for the video reference
Unknown User•7d ago
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I haven‘t clarified it yet, you‘re right. My target is net8
maybe net9 soon if the changes are related to 4xx error handling as was mentioned before
I‘m curious how the default formatting works if I don‘t pass anything to the function
It doesn‘t seem editable on its own, but perhaps I can manually create it and then pass it as parameter