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

code/MessengerApi.Db.Contracts/Repositories/IMessageRepository.cs

@@ -0,0 +1,9 @@
+using MessengerApi.Db.Entities;
+
+namespace MessengerApi.Db.Contracts.Repositories
+{
+    public interface IMessageRepository : IRepository<Message>
+    {
+        IEnumerable<Message> GetPendingMessages(User user);
+    }
+}

code/MessengerApi.Db.Contracts/Repositories/IRepository.cs

@@ -0,0 +1,15 @@
+using MessengerApi.Db.Contracts.Entities;
+
+namespace MessengerApi.Db.Contracts.Repositories
+{
+    public interface IRepository
+    {
+    }
+
+    public interface IRepository<T> : IRepository where T : class, IEntity<T>
+    {
+        void Add(T entity);
+
+        T GetById(Guid id);
+    }
+}

code/MessengerApi.Db.Contracts/Repositories/IUserRepository.cs

@@ -0,0 +1,9 @@
+using MessengerApi.Db.Entities;
+
+namespace MessengerApi.Db.Contracts.Repositories
+{
+    public interface IUserRepository : IRepository<User>
+    {
+        User SingleByApiKeyAndEnabled(Guid id, bool enabled);
+    }
+}

code/MessengerApi.Db.Contracts/Repositories/IUserRouteRepository.cs

@@ -0,0 +1,17 @@
+using MessengerApi.Db.Entities;
+
+namespace MessengerApi.Db.Contracts.Repositories
+{
+    public interface IUserRouteRepository:IRepository<UserRoute>
+    {
+        /// <summary>
+        /// Returns all routes for given user.
+        /// </summary>
+        IEnumerable<UserRoute> GetAllByUser(User sender);
+
+        /// <summary>
+        /// Returns routes where given user is sender.
+        /// </summary>
+        IEnumerable<UserRoute> GetByFrom(User user);
+    }
+}