Startup.cs

using Application;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi.Models;
using Persistence;

namespace WebApi
{
    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)
        {
            #region Swagger
            services.AddSwaggerGen(c =>
            {
                c.IncludeXmlComments(string.Format(@"{0}\OnionArchitecture.xml", System.AppDomain.CurrentDomain.BaseDirectory));
                c.SwaggerDoc("v1", new OpenApiInfo
                {
                    Version = "v1",
                    Title = "OnionArchitecture",
                });

            });
            #endregion
            #region Api Versioning
            // Add API Versioning to the Project
            services.AddApiVersioning(config =>
            {
                // Specify the default API Version as 1.0
                config.DefaultApiVersion = new ApiVersion(1, 0);
                // If the client hasn't specified the API version in the request, use the default API version number 
                config.AssumeDefaultVersionWhenUnspecified = true;
                // Advertise the API versions supported for the particular endpoint
                config.ReportApiVersions = true;
            });
            #endregion
            services.AddApplication();
            services.AddPersistence(Configuration);
            services.AddControllers();
        }

        // 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.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();
            #region Swagger
            // Enable middleware to serve generated Swagger as a JSON endpoint.
            app.UseSwagger();

            // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
            // specifying the Swagger JSON endpoint.
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "OnionArchitecture");
            });
            #endregion
            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}