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

Install the CData ADO.NET Provider for Redis

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

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

Create a Redis-Connected Blazor App

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

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.Redis.dll, typically located at C:\Program Files\CData\CData ADO.NET Provider for Redis\lib etstandard2.0).

SELECT Redis Data from the Blazor App

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

   Set the following connection properties to connect to a Redis instance:

   • Server: Set this to the name or address of the server your Redis instance is running on. You can specify the port in Port.
   • Password: Set this to the password used to authenticate with a password-protected Redis instance , using the Redis AUTH command.

   Set UseSSL to negotiate SSL/TLS encryption when you connect.

   For example: Server=127.0.0.1;Port=6379;Password=myPassword;

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

         @page "/"
         @using System.Data;
         @using System.Data.CData.Redis;
         
         <h1>Hello, world!</h1>
         
         Welcome to your Data app.
         
         <div class="row">
             <div class="col-12">
         
                 @using (RedisConnection connection = new RedisConnection(
                   "Server=127.0.0.1;Port=6379;Password=myPassword;"))
                 {
                     var sql = "SELECT City, CompanyName FROM Customers";
                     var results = new DataTable();
         
                     RedisDataAdapter dataAdapter = new RedisDataAdapter(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 Redis data as an HTML table in the Blazor app.

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