Connect to Factorial 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 Factorial 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 Factorial using standard SQL queries.

Install the CData API Driver for ADO.NET

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

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

Create a Factorial-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.

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).

SELECT Factorial Data from the Blazor App

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

   Authentication

   Factorial uses OAuth 2.0 for authentication to connect to your HR data or to allow other users to connect to their data.

   Using OAuth Authentication

   To connect using OAuth, follow these steps:

   1. Navigate to your Factorial admin panel and create a new OAuth application.
   2. Copy the Client ID and Client Secret from your application configuration.
   3. Configure the following connection properties:

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

   • AuthScheme: Set this to OAuth.
   • OAuthClientId: Set this to your OAuth Client ID.
   • OAuthClientSecret: Set this to your OAuth Client Secret.
   • Scope: Set this to specify the data access permissions (default: "read write").

   For example: Profile=C:\profiles\Factorial.apip;AuthScheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;

3. The code below creates a simple Blazor app for displaying Factorial data, using standard SQL to query Factorial 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\Factorial.apip;AuthScheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;"))
                 {
                     var sql = "SELECT ,  FROM Agreements WHERE ProcessId = '123'";
                     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 Factorial data as an HTML table in the Blazor app.

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