Add project files.

Program.cs

@@ -0,0 +1,77 @@
+using ConnectionsAPI.Config;
+using ConnectionsAPI.Database;
+using ConnectionsAPI.Utility;
+using Microsoft.EntityFrameworkCore;
+
+namespace ConnectionsAPI
+{
+    public class Program
+    {
+        public static async Task Main(string[] args)
+        {
+            var builder = WebApplication.CreateBuilder(args);
+
+            builder.Services.Configure<ForwardedHeadersOptions>(options =>
+            {
+                options.ForwardedHeaders = Microsoft.AspNetCore.HttpOverrides.ForwardedHeaders.XForwardedFor |
+                                            Microsoft.AspNetCore.HttpOverrides.ForwardedHeaders.XForwardedProto;
+            });
+
+            builder.Services
+                .AddFastEndpoints();
+
+            // set up options
+            builder.Services.Configure<SyncOptions>(builder.Configuration.GetSection("Sync"));
+
+            builder.Services.AddDbContext<ConnectionsContext>(opt =>
+            {
+                opt.UseSqlite(builder.Configuration.GetConnectionString("ConnectionsContext"), sqlOpts =>
+                {
+                    sqlOpts.UseQuerySplittingBehavior(QuerySplittingBehavior.SingleQuery);
+                });
+            });
+
+            builder.Services.AddHttpClient();
+
+            builder.Services.AddLazyCache();
+
+            builder.Services.AddHostedService<SyncScheduler>();
+
+            var app = builder.Build();
+
+            var logger = app.Services.GetRequiredService<ILogger<Program>>();
+
+            app.UseForwardedHeaders(new ForwardedHeadersOptions
+            {
+                ForwardedHeaders = Microsoft.AspNetCore.HttpOverrides.ForwardedHeaders.XForwardedFor |
+                                    Microsoft.AspNetCore.HttpOverrides.ForwardedHeaders.XForwardedProto
+            });
+
+            // not production container environments should work behind a reverse proxy
+            if (!app.Environment.IsDevelopment() && EnvironmentUtility.IsContainer)
+            {
+                logger.LogInformation("Non-development environment container detected, reverse proxy mode enabled");
+
+                app.UsePathBase("/connections-api");
+            }
+
+            //app.UseHttpsRedirection();
+
+            app.UseFastEndpoints();
+
+            // if not dev env, migrate database
+            if (!app.Environment.IsDevelopment())
+            {
+                using (var scope = app.Services.CreateScope())
+                {
+                    logger.LogInformation("Starting migration");
+                    var db = scope.ServiceProvider.GetRequiredService<ConnectionsContext>();
+                    await db.Database.MigrateAsync();
+                    logger.LogInformation("Migration finished");
+                }
+            }
+
+            app.Run();
+        }
+    }
+}