Specify API returns types for swagger

src/Vegasco.Server.Api/Cars/CreateCar.cs

@@ -16,7 +16,9 @@ public static class CreateCar
 	{
 		return builder
 			.MapPost("cars", Endpoint)
-			.WithTags("Cars");
+			.WithTags("Cars")
+			.Produces<Response>(201)
+			.ProducesValidationProblem();
 	}
 
 	public class Validator : AbstractValidator<Request>

src/Vegasco.Server.Api/Cars/DeleteCar.cs

@@ -8,7 +8,9 @@ public static class DeleteCar
 	{
 		return builder
 			.MapDelete("cars/{id:guid}", Endpoint)
-			.WithTags("Cars");
+			.WithTags("Cars")
+			.Produces(204)
+			.Produces(404);
 	}
 
 	public static async Task<IResult> Endpoint(

src/Vegasco.Server.Api/Cars/GetCar.cs

@@ -1,4 +1,5 @@
-using Vegasco.Server.Api.Persistence;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Vegasco.Server.Api.Persistence;
 
 namespace Vegasco.Server.Api.Cars;
 
@@ -10,7 +11,10 @@ public static class GetCar
 	{
 		return builder
 			.MapGet("cars/{id:guid}", Endpoint)
-			.WithTags("Cars");
+			.WithDescription("Returns a single car by ID")
+			.WithTags("Cars")
+			.Produces<Response>()
+			.Produces(404);
 	}
 
 	private static async Task<IResult> Endpoint(
@@ -28,4 +32,4 @@ public static class GetCar
 		var response = new Response(car.Id.Value, car.Name);
 		return TypedResults.Ok(response);
 	}
-}
+}

src/Vegasco.Server.Api/Cars/GetCars.cs

@@ -25,10 +25,11 @@ public static class GetCars
 		return builder
 			.MapGet("cars", Endpoint)
 			.WithDescription("Returns all cars")
-			.WithTags("Cars");
+			.WithTags("Cars")
+			.Produces<ApiResponse>();
 	}
 
-	private static async Task<Ok<ApiResponse>> Endpoint(
+	private static async Task<IResult> Endpoint(
 		[AsParameters] Request request,
 		ApplicationDbContext dbContext,
 		CancellationToken cancellationToken)

src/Vegasco.Server.Api/Cars/UpdateCar.cs

@@ -15,7 +15,10 @@ public static class UpdateCar
 	{
 		return builder
 			.MapPut("cars/{id:guid}", Endpoint)
-			.WithTags("Cars");
+			.WithTags("Cars")
+			.Produces<Response>()
+			.ProducesValidationProblem()
+			.Produces(404);
 	}
 
 	public class Validator : AbstractValidator<Request>