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

Install the CData ADO.NET Provider for Pinterest

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

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

Create a Pinterest-Connected Blazor App

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

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

SELECT Pinterest Data from the Blazor App

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

   Pinterest authentication is based on the standard OAuth flow. To authenticate, you must initially create an app via the Pinterest developer platform where you can obtain an OAuthClientId, OAuthClientSecret, and CallbackURL.

   Set InitiateOAuth to GETANDREFRESH and set OAuthClientId, OAuthClientSecret, and CallbackURL based on the property values for the app you created.

   See the Help documentation for other OAuth authentication flows.

   For example: OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='https://localhost:33333';InitiateOAuth=GETANDREFRESH;

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

    @page "/"
    @using System.Data;
    @using System.Data.CData.Pinterest;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (PinterestConnection connection = new PinterestConnection(
    "OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='https://localhost:33333';InitiateOAuth=GETANDREFRESH;"))
    {
    var sql = "SELECT Id, Username FROM Users WHERE FirstName = 'Jane'";
    var results = new DataTable();
    
    PinterestDataAdapter dataAdapter = new PinterestDataAdapter(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 Pinterest data as an HTML table in the Blazor app. 👁 Query Pinterest from Blazor app.
   

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