web-api POST body object always null

Question

I\'m still learning web API, so pardon me if my question sounds stupid.

I have this in my StudentController:

public HttpResponseMessage          


        

Answer 1

Just to add my history to this thread. My model:

public class UserProfileResource
{
    public Guid Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Phone { get; set; }

    public UserProfileResource()
    {
    }
}

The above object couldn't be serialized in my API Controller and would always return null. The issue was with Id of type Guid: everytime I passed empty string as an Id (being naive that it will automatically be converted to Guid.Empty) from my frontend I received null object as [FromBody] paramether.

Solution was either to

• pass valid Guid value
• or change Guid to String