Azure DevOps Connector for C# Azure DevOps Connector can be used to integrate Azure DevOps data in your App / BI Tools. You can create, read, query, modify, and delete WorkItems, Projects, Teams and more. In this article you will learn how to quickly and efficiently integrate Azure DevOps data in C#. We will use high-performance Azure DevOps Connector to easily connect to Azure DevOps and then access the data inside C#. Let's follow the steps below to see how we can accomplish that! Download Documentation Azure DevOps Connector for C# is based on ZappySys API Driver which is part of ODBC PowerPack. It is a collection of high-performance ODBC drivers that enable you to integrate data in SQL Server, SSIS, a programming language, or any other ODBC-compatible application. ODBC PowerPack supports various file formats, sources and destinations, including REST/SOAP API, SFTP/FTP, storage services, and plain files, to mention a few.

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Create ODBC Data Source (DSN) based on ZappySys API Driver

Step-by-step instructions

To get data from Azure DevOps using C# we first need to create a DSN (Data Source) which will access data from Azure DevOps. We will later be able to read data using C#. Perform these steps:

1. Download and install ODBC PowerPack.

2. Open ODBC Data Sources (x64):

   

3. Create a User data source (User DSN) based on ZappySys API Driver

   ZappySys API Driver

   
   • Create and use User DSN if the client application is run under a User Account. This is an ideal option in design-time, when developing a solution, e.g. in Visual Studio 2019. Use it for both type of applications - 64-bit and 32-bit.
   • Create and use System DSN if the client application is launched under a System Account, e.g. as a Windows Service. Usually, this is an ideal option to use in a production environment. Use ODBC Data Source Administrator (32-bit), instead of 64-bit version, if Windows Service is a 32-bit application.

4. When the Configuration window appears give your data source a name if you haven't done that already, then select "Azure DevOps" from the list of Popular Connectors. If "Azure DevOps" is not present in the list, then click "Search Online" and download it. Then set the path to the location where you downloaded it. Finally, click Continue >> to proceed with configuring the DSN:

   AzureDevopsDSN

   Azure DevOps

   

5. Now it's time to configure the Connection Manager. Select Authentication Type, e.g. Token Authentication. Then select API Base URL (in most cases, the default one is the right one). More info is available in the Authentication section.

    OAuth [OAuth]

   Steps how to get and use Azure DevOps credentials
   Connecting to your Azure DevOps data requires you to authenticate your REST API access. Follow the instructions below:

   1. Go to https://app.vsaex.visualstudio.com/app/register to register your app.
   2. Fill in your application and company's information as required, and then select the scopes that your application needs. This should typically be Project and team (read and write) and Work items (read and write).
      Your selected scopes when registering your app must match the scopes you enter here on the connector screen. If they don't match, the connector will not be able to work with your Azure DevOps account!

      If you need further information about the scopes used in Azure DevOps, or need to see what to enter into the connector screen to match up with your selected scopes, visit https://learn.microsoft.com/en-us/azure/devops/integrate/get-started/authentication/oauth?view=azure-devops.
      

      NOTE: For Authorization callback URL use your company's OAuth Redirect URL (if IT administrator provides you one) or you can use https://zappysys.com/oauth (it's safe).

   3. Select Create Application and then the Application Settings page will be displayed.
   4. Record the App ID for us to use later:
   5. And do the same with Client Secret:
   6. Then go to https://aex.dev.azure.com and select relevant organization on the left.
   7. Then copy Organization's host name part (e.g. acmeinc, if full host name is acmeinc.visualstudio.com), save it to a file, and click it:
   8. Back at the connector screen, enter the App ID into the Client Id (App ID) field that was recorded in the previous step.
   9. Enter the Client Secret that was recorded in the previous step into the Client Secret field. In order to edit the text in this field, select the ellipses (...) button that appears when the textbox is clicked, and edit the Client Secret with the dialog box that appears.
   10. Enter the organization that was recorded in step 5 into the Organization name or Id for url field.
   11. Click Generate Token. If proper authentication occurs, you will see a notice saying so. You can click Yes to save a backup file of your generated tokens.
   12. Select the project you want to connect to by default from the Default Project (Choose after Generating Token) field.
   13. Select the Security tab.
   14. Enter https://auditservice.dev.azure.com,https://almsearch.dev.azure.com into the Additional Trusted Domains field.
   15. Select the Test Connection button at the bottom of the window to verify proper connectivity with your Azure DevOps account.
   16. If the connection test succeeds, select OK.
   17. To edit previously created app you can visit https://app.vsaex.visualstudio.com/me and see Applications and services section. Click on your desired app name.

   Fill in all required parameters and set optional parameters if needed:

   AzureDevopsDSN

   Azure DevOps

   OAuth [OAuth]

   https://dev.azure.com

   Required Parameters
   Client Id (App ID)	Fill-in the parameter...
   Client Secret	Fill-in the parameter...
   Organization name or Id for url (e.g. mycompany)	Fill-in the parameter...
   Return URL	Fill-in the parameter...
   Scopes (Must match with App Registration)	Fill-in the parameter...
   API Version	Fill-in the parameter...
   Optional Parameters
   Default Project Name (Choose after Generating Token)
   RetryMode	RetryWhenStatusCodeMatch
   RetryStatusCodeList	429
   RetryCountMax	5
   RetryMultiplyWaitTime	True

   

    Personal Access Token (PAT) [Http]

   Steps how to get and use Azure DevOps credentials
   To connect to Azure DevOps using a Personal Access Token (PAT), you must first create a valid PAT:

   1. Start by by going to https://aex.dev.azure.com and selecting relevant organization on the left.
   2. Then copy Organization's host name part (e.g. acmeinc, if full host name is acmeinc.visualstudio.com), save it to a file, and click it:
   3. Next, click User settings icon and then click Personal access tokens:
   4. Then click New Token button to create a new personal access token:
   5. Continue by...
      • naming your token
      • selecting the right Organization
      • setting token's Expiration date (it's recommended to use Custom defined option and make it expire after one year or later)
      • and setting the Scopes:
      

      NOTE: You may be restricted from creating full-scoped PATs. If so, your Azure DevOps administrator in Azure AD has enabled a policy which limits you to a specific custom defined set of scopes.

   6. Now click Copy button and save the newly created token into a file for quick access later:
   7. Go back to the connector screen, input the token you saved in a previous step into the Personal Access Token (PAT) field.
   8. Then enter the Organization host name part that you noted recorded in previous step into Organization name or Id for url field.
   9. Enter the name or Id of the project you want to connect to by default in the Default Project (Choose after above fields) field.
   10. Select the Security tab.
   11. Enter https://auditservice.dev.azure.com,https://almsearch.dev.azure.com,https://analytics.dev.azure.com into the Additional Trusted Domains field.
   12. Select the Test Connection button at the bottom of the window to verify proper connectivity with your Azure DevOps account.
   13. Done!

   Fill in all required parameters and set optional parameters if needed:

   AzureDevopsDSN

   Azure DevOps

   Personal Access Token (PAT) [Http]

   https://dev.azure.com

   Required Parameters
   Personal Access Token (PAT)	Fill-in the parameter...
   Organization name or Id for url	Fill-in the parameter...
   API Version	Fill-in the parameter...
   Optional Parameters
   AuthScheme	Bearer
   AuthHeader	Authorization
   UserName
   Default Project Name (Choose after Generating Token)
   RetryMode	RetryWhenStatusCodeMatch
   RetryStatusCodeList	429
   RetryCountMax	5
   RetryMultiplyWaitTime	True

   

6. Once the data source connection has been configured, it's time to configure the SQL query. Select the Preview tab and then click Query Builder button to configure the SQL query:

   

   ZappySys API Driver - Azure DevOps

   Azure DevOps Connector can be used to integrate Azure DevOps data in your App / BI Tools. You can create, read, query, modify, and delete WorkItems, Projects, Teams and more.

   AzureDevopsDSN

   

7. Start by selecting the Table or Endpoint you are interested in and then configure the parameters. This will generate a query that we will use in C# to retrieve data from Azure DevOps. Hit OK button to use this query in the next step.

   SELECT * FROM Projects

   
   Some parameters configured in this window will be passed to the Azure DevOps API, e.g. filtering parameters. It means that filtering will be done on the server side (instead of the client side), enabling you to get only the meaningful data much faster.

8. Now hit Preview Data button to preview the data using the generated SQL query. If you are satisfied with the result, use this query in C#:

   

   ZappySys API Driver - Azure DevOps

   Azure DevOps Connector can be used to integrate Azure DevOps data in your App / BI Tools. You can create, read, query, modify, and delete WorkItems, Projects, Teams and more.

   AzureDevopsDSN

   SELECT * FROM Projects

   
   You can also access data quickly from the tables dropdown by selecting <Select table>.
   A WHERE clause, LIMIT keyword will be performed on the client side, meaning that the whole result set will be retrieved from the Azure DevOps API first, and only then the filtering will be applied to the data. If possible, it is recommended to use parameters in Query Builder to filter the data on the server side (in Azure DevOps servers).

9. Click OK to finish creating the data source.

Video Tutorial

Read data in C#

Using ODBC DSN

1. Create a new Console project and use this code to read the data:
   

   "AzureDevopsDSN";

   

2. Press F5 to run the code and read the data:
   

3. Here is the code in text format:

   using System;
   using System.Data.Odbc;
   
   namespace ConsoleApp {
       class Program {
           static void Main() {
               var dsn = "AzureDevopsDSN";
               using (var conn = new OdbcConnection(String.Format("DSN={0}", dsn)))
               {
                   conn.Open();
                   var cmd = new OdbcCommand("SELECT * FROM Products", conn);
                   
                   //Increase the timeout duration from the default 30 seconds, which may be insufficient in certain scenarios
                   cmd.CommandTimeout=600; // 600-Seconds
                   
                   var rdr = cmd.ExecuteReader();
                   while (rdr.Read())
                   {
                       for (int i = 0; i < rdr.FieldCount; i++)
                       {
                               Console.Write("{0}\t", rdr[i]);
                       }
                       Console.WriteLine();
                   }
               }
               Console.ReadKey();
           }
       }
   }
   

Using a full ODBC connection string

If you want to avoid being dependent on a DSN and creating multiple DSNs for each platform (x86, x64), then you can use a fully qualified connection string. Simply go to your DSN and copy the Connection String:

1. Open ODBC data source configuration and click Copy settings:
   

   ZappySys API Driver - Configuration [Version: 2.0.1.10418]

   ZappySys API Driver - Azure DevOps

   Azure DevOps Connector can be used to integrate Azure DevOps data in your App / BI Tools. You can create, read, query, modify, and delete WorkItems, Projects, Teams and more.

   AzureDevopsDSN

   
2. The window opens, telling us the connection string was successfully copied to the clipboard:

3. Then in your C# code, pass the connection string as an argument when calling the OdbcConnection object's constructor, for example:

   var connectionString = @"DRIVER={ZappySys API Driver};ServiceUrl=https://dev.azure.com;Provider=Vsts;ScopeSeparator={space};ReturnUrl=[$ReturnUrl$];Scope=[$Scope$];";
   
   using (var conn = new OdbcConnection(connectionString))
   {
       // your code goes here
   }

Limitations of using a full connection string

Despite using a full ODBC connection string may be very convenient it comes with a limitation: it's length is limited to 1024 symbols (or sometimes more). It usually happens when API provider generates a very long Refresh Token when OAuth is at play. If you are using such a long ODBC connection string, you may get this error:

"Connection string exceeds maximum allowed length of 1024"

But there is a solution to this by storing the full connection string in a file. Follow the steps below to achieve this:

1. Open your ODBC data source.
2. Click Copy settings button to copy a full connection string (see the previous section on how to accomplish that).
3. Then create a new file, let's say, in C:\temp\odbc-connection-string.txt.
4. Continue by pasting the copied connection string into a newly created file and save it.
5. Finally, the last step! Just construct a shorter ODBC connection string using this format:

   DRIVER={ZappySys API Driver};SettingsFile=C:\temp\odbc-connection-string.txt

6. Our troubles are over! Now you should be able to use this connection string in C# with no problems.

Actions supported by Azure DevOps Connector

Learn how to perform common Azure DevOps actions directly in C# with these how-to guides:

• Create Project
• Create Team
• Create Work Item
• Create Work Item Comment
• Delete Project
• Delete Team
• Delete Work Item
• Delete Work Item Comment
• Get List of Projects
• Get List of Queries
• Get List of Teams
• Get Project Details
• Get Query Fileds
• Get Team Details
• Get Team Iteration Capacities
• Get Team Iterations
• Get Team Members
• Get Work Item Column Fields
• Get Work Item Comment by Comment Id and Work Item Id
• Get Work Item Comments (by WorkItem Id)
• Get Work Item Types
• Get Work Items by Ids
• Get Work Items for Specified Query Id
• Query Work Item Comments
• Query Work Items
• Search for Work Items by Text
• Update Project
• Update Team
• Update Work Item
• Update Work Item Comment
• Generic Request
• Generic Request (Bulk Write)

Conclusion

In this article we showed you how to connect to Azure DevOps in C# and integrate data without any coding, saving you time and effort. It's worth noting that ZappySys API Driver allows you to connect not only to Azure DevOps, but to any Java application that supports JDBC (just use a different JDBC driver and configure it appropriately).

We encourage you to download Azure DevOps Connector for C# and see how easy it is to use it for yourself or your team.

If you have any questions, feel free to contact ZappySys support team. You can also open a live chat immediately by clicking on the chat icon below.

Download Azure DevOps Connector for C# Documentation

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