Configuration for Broker.

code/MessengerBroker.Configuration/Model/Servers/Base/Server.cs

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+namespace MessengerBroker.Configuration.Model.Servers.Base
+{
+    public class Server
+    {
+        public Guid BrokerId { get; set; }
+
+        public string Name { get; set; }
+    }
+}

code/MessengerBroker.Configuration/Model/Servers/MasterServer.cs

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+using MessengerBroker.Configuration.Model.Servers.Base;
+
+namespace MessengerBroker.Configuration.Model.Servers
+{
+    /// <summary>
+    /// Server that we have to pull data from and provide alternate service for.
+    /// </summary>
+    public class MasterServer : Server
+    {
+        /// <summary>
+        /// Url of the Broker API we use to download the data.
+        /// </summary>
+        public string BrokerUrl { get; set; }
+    }
+}

code/MessengerBroker.Configuration/Model/Servers/SlaveServer.cs

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+using MessengerBroker.Configuration.Model.Servers.Base;
+
+namespace MessengerBroker.Configuration.Model.Servers
+{
+    /// <summary>
+    /// Server that is pulling data from us and has to provide alternate service for us.
+    /// </summary>
+    public class SlaveServer : Server
+    {
+    }
+}