http post action not reached in ASP.NET Core 3.1 web API controller

Question

I have this controller

[ApiController]
[Route("api/[controller]")]
public class PlanningController: ControllerBase
{
 public async Task<IActionResult> SaveTest([FromBody] TestData     data)
{      

  return Ok(data);

}

public class TestData
{
 public int Id { get; set; }
 public string Name { get; set; }
}

This in Startup.cs

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
      if (env.IsDevelopment())
      {
        app.UseDeveloperExceptionPage();
      }
      else
      {
       app.UseHsts();
      }

      app.UseCors("default");
      app.UseHttpsRedirection();
      app.UseRouting();
      app.UseAuthentication();
      app.UseAuthorization();

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

      app.Run(context =>    context.Response.WriteAsync("Planificador API iniciada"));
}

I put a break point in the return but when I post this in postman

nothing happens in my controller the break point is not reached.

I don't understand the response received in postman

In VS 2022 I see this

Microsoft.AspNetCore.Hosting.Diagnostics: Information: Request    
starting HTTP/1.1 POST 
http://localhost:5001/api/planning/saveTest    application/json     34
Microsoft.AspNetCore.Hosting.Diagnostics[1] 
Microsoft.AspNetCore.Hosting.Diagnostics: Information: Request    finished in 8.3968ms 200 
Microsoft.AspNetCore.Hosting.Diagnostics[2]
Request finished in 8.3968ms 200

Any idea, please?

Thanks

I think the route is wrong, it should be [Route("api/[controller]")] — Max
– Max, Commented Jan 12, 2023 at 16:16
If you are still struggling, could you please share which version of asp.net core you are using. — Md Farid Uddin Kiron
– Md Farid Uddin Kiron, Commented Jan 12, 2023 at 17:26
first, as Max said, check for the routing, you have a prefix there "API" second, will be the model binding mechanism that .net core uses, behind the scene you have your fields with uppercase letters and you need to check if the serializer that you are using takes that in consideration. Please share the Startup.cs as well to see what are you registering there — Zinov
– Zinov, Commented Jan 12, 2023 at 17:53
I have updated with my Startup.cs code now. I'm using ASP.NET Core 3.1 — kintela
– kintela, Commented Jan 13, 2023 at 11:40

Md Farid Uddin Kiron · Accepted Answer · 2023-01-12 17:30:02Z

Nothing happens in my controller the break point is not reached.I don't understand the response received in postman

Well, because of using [Route("planning")] before your PlanningController it is certainly overriding your application standard routing. So, your controller route has been changed. Thus, you shouldn't manipulate this routing [Route("api/[controller]")]

Correct Way:

    [Route("api/[controller]")]
    [ApiController]
    public class PlanningController : ControllerBase
    {
        [HttpPost]
        [Route("saveTest")]
        public async Task<IActionResult> SaveTest([FromBody] TestData data)
        {

            return Ok(data);

        }
    }

Update:

Stratup.cs

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {

        services.AddControllers();
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "TestWebAPIProject", Version = "v1" });
        });
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseSwagger();
            app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "TestWebAPIProject v1"));
        }

        app.UseHttpsRedirection();

        app.UseRouting();

        app.UseAuthorization();

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

Output:

Note: I would highly recommend you to have a look on our official document for Custom route constraints

kintela · Accepted Answer · 2023-01-13 12:29:32Z

0

Solved...

The problem was tha in my controller I was injected IFileProvider wrong

Unable to resolve service for type 'Microsoft.Extensions.FileProviders.IFileProvider' while attempting to activate my controller

answered Jan 13, 2023 at 12:29

kintela

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