How to add action to controller in api mvc project net core 3.1

Question

I'm trying to make an IdentityServer4 starting from a Microsoft example.

The example contains an Api project and an mcv client to authenticate and call the api.

Api project Startup.cs:

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();

        services.AddAuthentication("Bearer")
            .AddJwtBearer("Bearer", options =>
            {
                options.Authority = "http://localhost:5000";
                options.RequireHttpsMetadata = false;

                options.Audience = "api1";
            });
    }

    public void Configure(IApplicationBuilder app)
    {
        app.UseRouting();

        app.UseAuthentication();
        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

Api IdentityController.cs:

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}

this code in MvcClient invoke correctly the action of IdentityController:

public async Task<IActionResult> CallApi()
{
        var accessToken = await HttpContext.GetTokenAsync("access_token");

        var client = new HttpClient();
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
        var content = await client.GetStringAsync("http://localhost:5001/identity");

        ViewBag.Json = JArray.Parse(content).ToString();
        return View("json");
}

I added one action named Test to IdentityController:

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }

        public IActionResult Test()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}

But this code throw 404 not found in McvClient:

public async Task<IActionResult> CallTestApi()
{
        var accessToken = await HttpContext.GetTokenAsync("access_token");

        var client = new HttpClient();
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
        var content = await client.GetStringAsync("http://localhost:5001/identity/Test");

        ViewBag.Json = JArray.Parse(content).ToString();
        return View("json");
}

404, I think your server is not started or endpoint does not exist — Maytham Fahmi
– Maytham Fahmi, Commented May 27, 2020 at 12:41
the server is starded, localhost:5001/identity works fine. but how to call another action? — FDB
– FDB, Commented May 27, 2020 at 12:56

nahidf · Accepted Answer · 2020-05-27 17:26:25Z

1

This sample uses HTTP verb route template. As you see [Route("identity")] is on controller level, and Get falls under default get for the controller. But for Test action you need to add [HttpGet("test")]. Read more about routing here. The code would be like this:

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }

        [HttpGet("test")]
        public IActionResult Test()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}

answered May 27, 2020 at 17:26

nahidf

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