Merge pull request #52 from atilatosta/gh-50-userAgent

Added User-Agent header to httpFactory and Constants class to hold th…

Author: mediumTaj

src/IBM.WatsonDeveloperCloud/Constants.cs

@@ -0,0 +1,31 @@
+/**
+* Copyright 2017 IBM Corp. All Rights Reserved.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+*/
+
+namespace IBM.WatsonDeveloperCloud
+{
+    /// <summary>
+    /// This class holds constant values for the SDK.
+    /// </summary>
+    public class Constants
+    {
+        /// <summary>
+        /// The version number for this SDK build. Added to the header in 
+        /// each request as `User-Agent`.
+        /// </summary>
+        public const string SDK_VERSION = "0.0.1-alpha";
+    }
+}

src/IBM.WatsonDeveloperCloud/Http/HttpFactory.cs

@@ -45,6 +45,7 @@ public static HttpRequestMessage GetRequestMessage(HttpMethod method, Uri resour
 
             // add default headers
             request.Headers.Add("accept", formatters.SelectMany(p => p.SupportedMediaTypes).Select(p => p.MediaType));
+            request.Headers.Add("User-Agent", Constants.SDK_VERSION);
 
             return request;
         }