Broker implementation updated.

code/MessengerBroker/Handlers/Endpoint/MessagesEndpointHandler.cs

@@ -0,0 +1,49 @@
+using MessengerApi.Factories;
+using MessengerBroker.Configuration.Model;
+using MessengerBroker.Factories;
+using MessengerBroker.Model.Http;
+using Microsoft.EntityFrameworkCore;
+
+namespace MessengerBroker.Handlers.Endpoint
+{
+    public class MessagesEndpointHandler
+    {
+        private readonly BrokerConfiguration configuration;
+        private readonly BrokerDbContextFactory brokerDbContextFactory;
+        private readonly DbContextFactory messengerDbContextFactory;
+
+        public MessagesEndpointHandler(
+            BrokerConfiguration configuration,
+            BrokerDbContextFactory brokerDbContextFactory,
+            DbContextFactory messengerDbContextFactory)
+        {
+            this.configuration = configuration;
+            this.brokerDbContextFactory = brokerDbContextFactory;
+            this.messengerDbContextFactory = messengerDbContextFactory;
+        }
+
+        public async Task<Messages.MessagesResponse> GetMessages(Messages.MessagesRequest request)
+        {
+            using var broCtx = this.brokerDbContextFactory.CreateDbContext();
+
+            var brokerMessageIdCollection = broCtx.Messages
+                .Where(x => x.BrokerId == request.OwnerBrokerId)
+                .Select(x => x.Id)
+                .Take(1000)
+                .ToArray();
+
+            using var apiCtx = this.messengerDbContextFactory.CreateDbContext();
+
+            var messages = apiCtx.Messages
+                .Where(x => x.CreatedUtc >= request.SinceUtc && brokerMessageIdCollection.Contains(x.Id))
+                .ToArray();
+
+            var response = new Messages.MessagesResponse
+            {
+                Messages = messages
+            };
+
+            return response;
+        }
+    }
+}