Startup.cs

using Microsoft.AspNet.Builder;
using Microsoft.AspNet.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Data.Entity;
using Expense.Models;

namespace Expense
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            // Setup configuration sources.
            var builder = new ConfigurationBuilder()
                .AddJsonFile("appsettings.json")
                .AddEnvironmentVariables();
            Configuration = builder.Build();
            Configuration["Data:DefaultConnection:ConnectionString"] = $@"Data Source={builder.GetBasePath()}/expense.db";
        }

        public IConfigurationRoot Configuration { get; set; }

        // This method gets called by the runtime.
        public void ConfigureServices(IServiceCollection services)
        {
            // Add EntityFramework
            services
                .AddEntityFramework()
                .AddSqlite()
                .AddDbContext<ExpenseContext>(options => options.UseSqlite(Configuration["Data:DefaultConnection:ConnectionString"]));

            // Add MVC services to the services container.
            services.AddMvc();
        }

        // Configure is called after ConfigureServices is called.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();
            
            // Add the following to the request pipeline only in development environment.
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                // Add Error handling middleware which catches all application specific errors and
                // send the request to the following path or controller action.
                app.UseExceptionHandler("/Home/Error");
            }

            // Add the platform handler to the request pipeline.
            app.UseIISPlatformHandler();

            // Add static files to the request pipeline.
            app.UseStaticFiles();

            // Add MVC to the request pipeline.
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
                    
                routes.MapRoute("DefaultApi", "api/{controller}/{id?}");
            });
        }
        
        // Entry point for the application.
        public static void Main(string[] args) => Microsoft.AspNet.Hosting.WebApplication.Run<Startup>(args);
    }
}