I am trying to use model binding from query parameters to an object for searching.
My search object is
[DataContract]
public class Criteria
{
[DataMember(Name = "first_name")]
public string FirstName { get; set; }
}
My controller has the following action
[Route("users")]
public class UserController : Controller
{
[HttpGet("search")]
public IActionResult Search([FromQuery] Criteria criteria)
{
...
}
}
When I call the endpoint as follows .../users/search?first_name=dave
the criteria property on the controller action is null.
However, I can call the endpoint not as snake case .../users/search?firstName=dave
and the criteria property contains the property value. In this case Model Binding has worked but not when I use snake_case.
How can I use snake_case with Model Binding?
You need to add [FromQuery]
attribute to the model properties individually
public class Criteria
{
[FromQuery(Name = "first_name")]
public string FirstName { get; set; }
}