Connect to Spotify Data from PowerBuilder via ADO.NET

This article demonstrates using the CData API Driver for ADO.NET in PowerBuilder, showcasing the ease of use and compatibility of these standards-based controls across various platforms and development technologies that support Microsoft .NET, including Appeon PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData API Driver for ADO.NET to retrieve data.

1. In a new WPF Window Application solution, add all the Visual Controls needed for the connection properties. Below is a typical connection string:

   Profile=C:\profiles\Spotify.apip;AuthScheme=OAuth;InitiateOAuth=GETANDREFRESH;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackURL=http://localhost:33333;

   Using OAuth Authentication

   Spotify uses OAuth 2.0 for authentication. You will need to create an application in the Spotify Developer Dashboard to obtain your client credentials.

   Setting Up Your Spotify Application

   1. Visit the Spotify Developer Dashboard.
   2. Log in with your Spotify account and click Create app.
   3. Provide an app name, description, and set a Redirect URI (e.g.,

      http://localhost:33333

      for desktop applications).
   4. Copy your Client ID and Client Secret from the app settings.

   Connection Properties

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

   • AuthScheme: Set this to OAuth.
   • InitiateOAuth: Set this to GETANDREFRESH. You can use InitiateOAuth to manage the process to obtain the OAuthAccessToken.
   • OAuthClientId: Set this to your Spotify application's Client ID.
   • OAuthClientSecret: Set this to your Spotify application's Client Secret.
   • Scope: Set this to the required OAuth scopes (space-separated). The default includes all read scopes needed for the tables in this profile.
   • CallbackURL: Set this to the Redirect URI configured in your Spotify application (e.g., http://localhost:33333).

   Example Connection String

   Profile=C:\profiles\Spotify.apip;AuthScheme=OAuth;InitiateOAuth=GETANDREFRESH;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackURL=http://localhost:33333;
   

   Available OAuth Scopes

   • user-read-private: Read access to user's subscription details and explicit content settings.
   • user-read-email: Read access to user's email address.
   • user-library-read: Read access to a user's saved tracks, albums, episodes, shows, and audiobooks.
   • playlist-read-private: Read access to user's private playlists.
   • playlist-read-collaborative: Read access to collaborative playlists the user follows.
   • user-follow-read: Read access to the list of artists the current user follows.
   • user-read-playback-state: Read access to a user's player state (device, current track, progress).
   • user-read-currently-playing: Read access to a user's currently playing content.
   • user-read-playback-history: Read access to a user's recently played tracks.
   • user-top-read: Read access to a user's top artists and tracks.
2. Add the DataGrid control from the .NET controls.
3. Configure the columns of the DataGrid control. Below are several columns from the Account table:

   
   <DataGrid AutoGenerateColumns="False" Margin="13,249,12,14" Name="datagrid1" TabIndex="70" ItemsSource="{Binding}">
   <DataGrid.Columns>
       <DataGridTextColumn x:Name="idColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" />
       <DataGridTextColumn x:Name="nameColumn" Binding="{Binding Path=}" Header="" Width="SizeToHeader" />
   		...
   	</DataGrid.Columns>
   </DataGrid>
   

4. Add a reference to the CData API Driver for ADO.NET assembly.

Connect the DataGrid

Once the visual elements have been configured, you can use standard ADO.NET objects like Connection, Command, and DataAdapter to populate a DataTable with the results of an SQL query:

System.Data.CData.API.APIConnection conn 
conn = create System.Data.CData.API.APIConnection(connectionString)

System.Data.CData.API.APICommand comm 
comm = create System.Data.CData.API.APICommand(command, conn)

System.Data.DataTable table
table = create System.Data.DataTable

System.Data.CData.API.APIDataAdapter dataAdapter
dataAdapter = create System.Data.CData.API.APIDataAdapter(comm)
dataAdapter.Fill(table)	
datagrid1.ItemsSource=table.DefaultView

The code above can be used to bind data from the specified query to the DataGrid.