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

Install the CData API Driver for ADO.NET

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

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

Create a Qualaroo-Connected Blazor App

Start by creating a Blazor project that references the CData API Driver for ADO.NET

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

SELECT Qualaroo Data from the Blazor App

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

   Qualaroo uses HTTP Basic Authentication to control access to the API. You will need your API Key and API Secret, which can be found under Account Details > Reporting API in the Qualaroo dashboard.

   Using Basic Authentication

   After setting the following connection properties, you are ready to connect:

   • AuthScheme: Set this to Basic.
   • User: Set this to your Qualaroo API Key.
   • Password: Set this to your Qualaroo API Secret.

   Example connection string:

   Profile=C:\profiles\Qualaroo.apip;AuthScheme=Basic;User=your_api_key;Password=your_api_secret;
   

   For example: Profile=C:\profiles\Qualaroo.apip;AuthScheme=Basic;User=your_api_key;Password=your_api_secret;

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

    @page "/"
    @using System.Data;
    @using System.Data.CData.API;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (APIConnection connection = new APIConnection(
    "Profile=C:\profiles\Qualaroo.apip;AuthScheme=Basic;User=your_api_key;Password=your_api_secret;"))
    {
    var sql = "SELECT , FROM SurveyResponses WHERE SurveyId = '12345'";
    var results = new DataTable();
    
    APIDataAdapter dataAdapter = new APIDataAdapter(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 Qualaroo data as an HTML table in the Blazor app. 👁 Query Qualaroo from Blazor app.
   

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