ASP.NET Core HTTP Error Responses Best Practice?
How do you return a bad request or an unauthorized response in ASP.NET while also being
able to return a strongly typed response? I present to you ActionResult<T>. Here
is an example of me using ActionResult to validate the request as well as to check authorization.
Since this is an example, is it not for copy-pasting but rather to show you how to use ActionResult<T> in practice.
// one of these is imports may be relevant
using System.Security.Claims;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
[HttpPost]
public async Task<ActionResult<string>> New(StartRideRequest startRideRequest) {
var email = User.FindFirstValue(ClaimTypes.Email);
if (email == null) return Unauthorized();
if (!_dataValidationService.validCurrency(startRideRequest.Currency)) {
HttpContext.Features.Set(new ArgumentException("invalid currency"));
return BadRequest("invalid currency");
}
// ...
return Ok("id");
}