Adding factory method to construct AttachmentsApi.

Author: jforsell

src/SymphonyOSS.RestApiClient/Factories/AgentApiFactory.cs

@@ -36,6 +36,19 @@ public AgentApiFactory(string baseUrl)
             _baseUrl = baseUrl;
         }
 
+        /// <summary>
+        /// Constructs an AttachmentsApi instance using the provided session manager
+        /// for authentication.
+        /// </summary>
+        /// <param name="sessionManager">Session manager used for authentication.</param>
+        /// <param name="apiExecutor">The executor, if none is provided <see cref="RetryStrategyApiExecutor"/>
+        /// with a <see cref="RefreshTokensRetryStrategy"/> will be used.</param>
+        /// <returns>The AttachmentsApi instance.</returns>
+        public AttachmentsApi CreateAttachmentsApi(SessionManager sessionManager, IApiExecutor apiExecutor = null)
+        {
+            return Create<AttachmentsApi>(sessionManager, apiExecutor);
+        }
+
         /// <summary>
         /// Constructs a DatafeedApi instance using the provided session manager
         /// for authentication.

test/SymphonyOSS.RestApiClient.Tests/AgentApiFactoryTest.cs

@@ -34,6 +34,14 @@ public AgentApiFactoryTest()
             _sessionManager = new SessionManager("https://sessionauth", "https://keyauth", certificateMock.Object);
         }
 
+        [Fact]
+        public void EnsureConstructs_an_AttachmentsApi_instance()
+        {
+            var agentApiFactory = new AgentApiFactory("https://agent");
+            var result = agentApiFactory.CreateAttachmentsApi(_sessionManager);
+            Assert.NotNull(result);
+        }
+
         [Fact]
         public void EnsureConstructs_a_DatafeedApi_instance()
         {