Connect to Confluence Data from Blazor Apps

Blazor is a framework for developing modern, client-side web UIs using .NET technology. Instead of coding in JavaScript, developers can use the familiar C# language and .NET libraries to build app UIs.

The CData ADO.NET Provider for Confluence can be used with standard ADO.NET interfaces, such as LINQ and Entity Framework, to interact with live Confluence data. Since Blazor supports .NET Core, developers can use CData ADO.NET Providers in Blazor apps. In this article, we will guide you to build a simple Blazor app that talks to Confluence using standard SQL queries.

Install the CData ADO.NET Provider for Confluence

CData ADO.NET Providers allow users to access Confluence just like they would access SQL Server, using simple SQL queries.

Install the Confluence ADO.NET Data Provider from the CData website or from NuGet. Search NuGet for "Confluence ADO.NET Data Provider."

Create a Confluence-Connected Blazor App

Start by creating a Blazor project that references the CData ADO.NET Provider for Confluence

1. Create a Blazor project on Visual Studio.

2. From the Solution Explorer, right click Dependencies, then click Add Project Reference.
3. In the Reference Manager, click the Browse button, and choose the .dll file of the installed ADO.NET Provider (e.g. System.Data.CData.Confluence.dll, typically located at C:\Program Files\CData\CData ADO.NET Provider for Confluence\lib etstandard2.0).

SELECT Confluence Data from the Blazor App

1. Open the Index.razor file from the Project page.
2. In a ConfluenceConnection object, set the connection string:

   Obtaining an API Token

   An API token is necessary for account authentication. To generate one, login to your Atlassian account and navigate to API tokens > Create API token. The generated token will be displayed.

   Connect Using a Confluence Cloud Account

   To connect to a Cloud account, provide the following (Note: Password has been deprecated for connecting to a Cloud Account and is now used only to connect to a Server Instance.):

   • User: The user which will be used to authenticate with the Confluence server.
   • APIToken: The API Token associated with the currently authenticated user.
   • Url: The URL associated with your JIRA endpoint. For example, https://yoursitename.atlassian.net.

   Connect Using a Confluence Server Instance

   To connect to a Server instance, provide the following:

   • User: The user which will be used to authenticate with the Confluence instance.
   • Password: The password which will be used to authenticate with the Confluence server.
   • Url: The URL associated with your JIRA endpoint. For example, https://yoursitename.atlassian.net.

   For example: User=admin;APIToken=myApiToken;Url=https://yoursitename.atlassian.net;Timezone=America/New_York;

3. The code below creates a simple Blazor app for displaying Confluence data, using standard SQL to query Confluence just like SQL Server.

         @page "/"
         @using System.Data;
         @using System.Data.CData.Confluence;
         
         <h1>Hello, world!</h1>
         
         Welcome to your Data app.
         
         <div class="row">
             <div class="col-12">
         
                 @using (ConfluenceConnection connection = new ConfluenceConnection(
                   "User=admin;APIToken=myApiToken;Url=https://yoursitename.atlassian.net;Timezone=America/New_York;"))
                 {
                     var sql = "SELECT Key, Name FROM Pages WHERE Id = '10000'";
                     var results = new DataTable();
         
                     ConfluenceDataAdapter dataAdapter = new ConfluenceDataAdapter(sql, connection);
                     dataAdapter.Fill(results);
         
                     <table class="table table-bordered">
                         <thead class="thead-light">
                             <tr>
                                 @foreach (DataColumn item in results.Rows[0].Table.Columns)
                                 {
                                     <th scope="col">@item.ColumnName</th>
                                 }
                             </tr>
                         </thead>
                         <tbody>
                             @foreach (DataRow row in results.Rows)
                             {
                                 <tr>
                                     @foreach (var column in row.ItemArray)
                                     {
                                         <td>@column.ToString()</td>
                                     }
                                 </tr>
                             }
                         </tbody>
                     </table>
                 }
             </div>
         </div>
       

4. Rebuild and run the project. The ADO.NET Provider renders Confluence data as an HTML table in the Blazor app.

   At this point, you have a Confluence-connected Blazor app, capable of working with live Confluence data just like you would work with a SQL Server instance. Download a free, 30-day trial and start working with live Confluence data in your Blazor apps today.