Unable to post values from angular service to Web API in asp.net core angular

I am working on asp.net core(2.1) angular project, here I am passing parameters from angular service to web API but I am not getting those values in API.

Below is my code, it was working fine when I was using a separate project for Web API. Now as I have created a controller inside the asp.net core project itself I am unable to get posted values in API parameter list.

Do I need to add/change some settings to get values from angular service to API call?

Angular Service :

getSortedPagedResults(filters): Observable<any> { debugger; return this._http.post(this.myAppUrl + 'api/Employee/EmployeesServerSide', filters); } 

API :

[HttpPost] [Route("api/Employee/EmployeesServerSide")] public IEnumerable<Users> EmployeesServerSide(Filters filters) { return objemployee.GetUsersServerSide(filters); } 

Startup Class :

public void ConfigureServices(IServiceCollection services) { services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); services.AddSpaStaticFiles(configuration => { configuration.RootPath = "ClientApp/dist"; }); services.Configure<CookiePolicyOptions>(options => { options.MinimumSameSitePolicy = SameSiteMode.None; }); services.AddCors(o => o.AddPolicy("CorsPolicy", builder => { builder .AllowAnyMethod() .AllowAnyHeader() //.WithOrigins("http://localhost:4200") .AllowCredentials(); })); services.AddSignalR(); services.Configure<FormOptions>(x => { x.ValueLengthLimit = int.MaxValue; x.MultipartBodyLengthLimit = int.MaxValue; // In case of multipart }); } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { app.UseExceptionHandler("/Home/Error"); app.UseHsts(); } app.UseCors("CorsPolicy"); app.UseSignalR(routes => { routes.MapHub<NotifyHub>("/notify"); }); app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseSpaStaticFiles(); app.UseMvc(routes => { routes.MapRoute( name: "default", template: "{controller}/{action=Index}/{id?}"); }); app.UseSpa(spa => { spa.Options.SourcePath = "ClientApp"; if (env.IsDevelopment()) { spa.Options.StartupTimeout = new TimeSpan(0, 0, 100); spa.UseAngularCliServer(npmScript: "start"); } }); }