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

Install the CData ADO.NET Provider for eBay Analytics

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

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

Create a eBay Analytics-Connected Blazor App

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

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

SELECT eBay Analytics Data from the Blazor App

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

   You can authenticate to eBay Analytics only via the OAuth 2 authentication method. The eBay Analytics API requires an access token created with the authorization code grant flow to authorize the requests.

   You can follow the guide in the Help documentation for a step by step guide on how to authenticate using the OAuth 2 protocol.

   For example: OAuthClientId=MyAppID;OAuthClientSecret=MyCertID;RuName=MyRuName;InitiateOAuth=GETANDREFRESH;

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

    @page "/"
    @using System.Data;
    @using System.Data.CData.EbayAnalytics;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (EbayAnalyticsConnection connection = new EbayAnalyticsConnection(
    "OAuthClientId=MyAppID;OAuthClientSecret=MyCertID;RuName=MyRuName;InitiateOAuth=GETANDREFRESH;"))
    {
    var sql = "SELECT ListingName, ClickThroughRate FROM TrafficReportByListing WHERE ListingId = '201284405428'";
    var results = new DataTable();
    
    EbayAnalyticsDataAdapter dataAdapter = new EbayAnalyticsDataAdapter(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 eBay Analytics data as an HTML table in the Blazor app. 👁 Query eBay Analytics from Blazor app.
   

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