When should I return 400?
400 Bad Request: The request cannot be fulfilled due to bad syntax. In this case, your client sent you an XML payload that had an invalid zip code, which is a form of invalid syntax; therefore, sending a 400 Bad Request is an appropriate error code to return in this situation.
What status code indicates that a required parameter is absent during content discovery?
You can send a 400 Bad Request code. It’s one of the more general-purpose 4xx status codes, so you can use it to mean what you intend: the client is sending a request that’s missing information/parameters that your application requires in order to process it correctly.
Is there a way to return a null object?
I need the Returns () method to return a null object, which is going to be what the actual API method would return if the resource is not found. I tried sending null as a parameter in the Returns () method but had no success.
How to return all records when parameter is blank or null?
Inside the stored procedure, the parameter value is first tested for Null using the ISNULL function and then checked whether it is Blank (Empty). If the parameter has value then only matching records will be returned, while if the parameter is Null or Blank (Empty) then all records from the table will be returned.
How to check if a parameter is null?
In this scenario we will add IF condition to check whether the supplied Parameter is NULL or Blank (Empty). The following stored procedure makes use of an Optional parameter EmployeeId.
When to return a bad request status code?
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415 (Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions.