Provide OData Services of Azure DevOps データ from a WCF Application

こんにちは！ウェブ担当の加藤です。マーケ関連のデータ分析や整備もやっています。

The CData ADO.NET Provider for AzureDevOps enables you to use the Windows Communication Foundation (WCF) framework to rapidly develop service-oriented applications that provide Azure DevOps データ to OData consumers. This article shows how to create an entity data model to provide the underlying connectivity to the Azure DevOps データ, as well as how to create a WCF Data Service to expose the OData service. You can then consume the feed with any OData client, for example, Power Pivot or an application that uses the CData ADO.NET Provider for OData.

Create the OData Service

Follow the steps below to create a WCF service application that will provide connectivity to Azure DevOps データ via OData.

1. Open Visual Studio and create a new project. Select the WCF Service Application template.
2. Delete the autogenerated IService.cs and Service1.svc.
3. Click Project -> Add New Item -> ADO.NET Entity Data Model.
4. In the Entity Data Model wizard that is displayed, select the 'EF Designer from Database' option.
5. In the resulting Choose Your Connection dialog, click New Connection.

6. In the Connection properties dialog, select the CData Azure DevOps Data Source and enter the necessary credentials. A typical connection string is below:

   AuthScheme=Basic;Organization=MyAzureDevOpsOrganization;ProjectId=MyProjectId;PersonalAccessToken=MyPAT;

   AzureDevOps 接続プロパティの取得・設定方法

   Azure DevOps アカウントに接続するには、Profile -> Organizations に移動して、アカウント内の組織名であるOrganization を指定します。

   例： Organization=MyAzureDevOpsOrganization

   NOTE ：Analytics スキーマに接続する場合は、Organization と一緒にProjectId を指定する必要があります。

   Azure DevOps への認証

   Basic

   Organization とPersonalAccessToken を指定することで、Azure DevOps アカウントに接続できます。 パーソナルアクセストークンを生成するには、Azure DevOps Organization アカウントにログインし、Profile -> Personal Access Tokens -> New Token に移動します。生成されたトークンが表示されます。

   Azure AD

   Azure ADは、OAuth を利用して認証する接続形式です。OAuth は、認証ユーザーがインターネットブラウザを使用してAzure DevOps と通信することを要求します。 CData 製品は、いくつかの方法でこれをサポートします。AuthScheme をAzureAD に設定し、Organization をAzure DevOps の組織名に設定します。 詳しくは、ヘルプドキュメント の「Azure DevOps への認証」セクションを参照してください。

   See the help documentation for guides to connecting in Visual Studio.

7. Select Azure DevOps tables and views that you want OData clients to access.
8. Click Project -> Add New Item -> WCF Data Service.

9. Specify the data source class and configure access to the new WCF Data Service. In the example below, the Access Rule for the entities is set to All. This means that any user will be able to read and modify data.

   using System; using System.Collections.Generic; using System.Data.Services; using System.Data.Services.Common; using System.Linq; using System.ServiceModel.Web; using System.Web; namespace AzureDevOpsService{ public class AzureDevOpsDataService : DataService { public static void InitializeService(DataServiceConfiguration config) { config.SetEntitySetAccessRule("*", EntitySetRights.All); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V3; } } }
10. Run the project. Applications that support OData can now access the Salesforce data and reflect any changes. You can access the feed in your browser. The feed will resemble the following:

Consume the OData Service from Power Pivot

You can now use the service from any OData client; for example, Excel Power Pivot.

1. Open Excel and click on the Power Pivot Window button.
2. A new pop-up will appear. Select the option From Data Feeds.
3. In the resulting Table Import Wizard, enter the OData URL. For example, http://localhost:12449/AzureDevOpsDataService.svc/.
4. After connecting to the OData service, click the Next button at the bottom of the window.
5. A table listing of the available tables will appear in the next window of the wizard. Select which tables you want to import and click Finish.
6. Click Close to import the data in Power Pivot.