PowerBIEmbedToken

var tokenCredentials = new TokenCredentials(token.access_token, "Bearer");
  
// Create a Power BI Client object. It will be used to call Power BI APIs.
using (var client = new PowerBIClient(new Uri(ApiUrl), tokenCredentials))
{
  // Generate Embed Token.
  var generateTokenRequestParameters = new GenerateTokenRequest(accessLevel: "view");
  var tokenResponse = await client.Dashboards.GenerateTokenInGroupAsync(GroupId, dashboardId,    
  generateTokenRequestParameters);
}