Issue 351: Reimplement OAuth2 - Step 2 (Auth PCL - only data types)

Src/GoogleApis.Auth/OAuth2/Requests/TokenRequest.cs

+/*
+Copyright 2013 Google Inc
+
+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.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Google.Apis.Auth.OAuth2.Requests
+{
+/// <summary>
+/// OAuth 2.0 request for an access token as specified in http://tools.ietf.
org/html/rfc6749#section-4.
+/// </summary>
+public class TokenRequest
+{
+/// <summary>
+/// Gets or sets space-separated list of scopes as specified in http://t
ools.ietf.org/html/rfc6749#section-3.3.
+/// </summary>
+[Google.Apis.Util.RequestParameterAttribute("scope")]
+public string Scope { get; set; }
+
+/// <summary>
+/// Gets or sets the Grant type. Sets <c>authorization_code</c> or <c>pa
ssword</c> or <c>client_credentials</c>·
+/// or <c>refresh_token</c> or absolute URI of the extension grant type.
+/// </summary>
+[Google.Apis.Util.RequestParameterAttribute("grant_type")]
+public string GrantType { get; set; }
+
+/// <summary>Gets or sets the client Identifier.</summary>
+[Google.Apis.Util.RequestParameterAttribute("client_id")]
+public string ClientId { get; set; }
+
+/// <summary>Gets or sets the client Secret.</summary>
+[Google.Apis.Util.RequestParameterAttribute("client_secret")]
+public string ClientSecret { get; set; }
+}
+}