Connect to Splunk 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 Splunk can be used with standard ADO.NET interfaces, such as LINQ and Entity Framework, to interact with live Splunk 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 Splunk using standard SQL queries.

Install the CData ADO.NET Provider for Splunk

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

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

Create a Splunk-Connected Blazor App

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

1. Create a Blazor project on Visual Studio.
👁 Create a Blazor app project.

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.Splunk.dll, typically located at C:\Program Files\CData\CData ADO.NET Provider for Splunk\lib etstandard2.0).
👁 Reference ADO.NET for Splunk .dll in the Blazor app.

SELECT Splunk Data from the Blazor App

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

   To authenticate requests, set the , , and properties to valid Splunk credentials. The port on which the requests are made to Splunk is port 8089.

   The data provider uses plain-text authentication by default, since the data provider attempts to negotiate TLS/SSL with the server.

   If you need to manually configure TLS/SSL, see Getting Started -> Advanced Settings in the data provider help documentation.

   For example: user=MyUserName;password=MyPassword;URL=MyURL;InitiateOAuth=GETANDREFRESH;

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

    @page "/"
    @using System.Data;
    @using System.Data.CData.Splunk;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (SplunkConnection connection = new SplunkConnection(
    "user=MyUserName;password=MyPassword;URL=MyURL;InitiateOAuth=GETANDREFRESH;"))
    {
    var sql = "SELECT Name, Owner FROM DataModels";
    var results = new DataTable();
    
    SplunkDataAdapter dataAdapter = new SplunkDataAdapter(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 Splunk data as an HTML table in the Blazor app. 👁 Query Splunk from Blazor app.
   

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