PluralKit/PluralKit.Web/Startup.cs

using System.Data;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Npgsql;

namespace PluralKit.Web
{
    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)
        {
            var config = Configuration.GetSection("PluralKit").Get<CoreConfig>();
            
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
            
            services
                .AddSingleton<IDbConnection, NpgsqlConnection>(_ => new NpgsqlConnection(config.Database))
                .AddSingleton<SystemStore>()
                .AddSingleton<MemberStore>()
                .AddSingleton(config);
        }

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

            //app.UseHttpsRedirection();
            app.UseMvc();

            var conn = app.ApplicationServices.GetRequiredService<IDbConnection>();
            conn.Open();
            
            await Schema.CreateTables(conn);
        }
    }
}