Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using dotnet.DataAccess;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Swashbuckle.AspNetCore.Swagger;

namespace dotnet {
    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.AddDbContext<BusHelperContext> (options =>
                options.UseSqlServer (Configuration.GetConnectionString ("DefaultConnection")));

            services.AddSwaggerGen (c => {
                c.SwaggerDoc ("v1", new Info { Title = "My API", Version = "v1" });
            });

            services.AddMvc ();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure (IApplicationBuilder app, IHostingEnvironment env) {
            if (env.IsDevelopment ()) {
                app.UseDeveloperExceptionPage ();
            }

            app.UseSwagger ();
            app.UseSwaggerUI (c => {
                c.SwaggerEndpoint ("/swagger/v1/swagger.json", "My API V1");
            });

            app.UseMvc ();
        }
    }
}