Initial commit carried over from private repo. This is V2.

code/MessengerApi/Models/Scoped/UnitOfWork.cs

@@ -0,0 +1,33 @@
+using MessengerApi.Contracts.Factories;
+using MessengerApi.Contracts.Models.Scoped;
+using MessengerApi.Db;
+using MessengerApi.Db.Contracts.Repositories;
+using MessengerApi.Db.Repositories;
+
+namespace MessengerApi.Models.Scoped
+{
+    public class UnitOfWork : IUnitOfWork
+    {
+        private MessengerDbContext context;
+
+        public IUserRepository Users { get; }
+
+        public IUserRouteRepository UserRoutes { get; }
+
+        public IMessageRepository Messages { get; }
+
+        public UnitOfWork(
+            IDbContextFactory dbContextFactory)
+        {
+            this.context = dbContextFactory.CreateDbContext();
+            this.Users = new UserRepository(this.context.Users);
+            this.UserRoutes = new UserRouteRepository(this.context.UserRoutes);
+            this.Messages = new MessageRepository(this.context.Messages);
+        }
+
+        public Task SaveChanges(CancellationToken ct = default)
+        {
+            return this.context.SaveChangesAsync(ct);
+        }
+    }
+}