public override async ValueTask <Azure.Core.AccessToken> GetTokenAsync(Azure.Core.TokenRequestContext requestContext, CancellationToken cancellationToken)
{
try
{
var result = await _tokenProvider.GetAuthenticationResultAsync(_resourceIdentity, _tenantIdentity, cancellationToken : cancellationToken).ConfigureAwait(false);
return(new Azure.Core.AccessToken(result.AccessToken, result.ExpiresOn));
}
catch (Exception ex)
{
InternalLogger.Error(ex, "AzureEventHub - Failed getting AccessToken from AzureServiceTokenProvider for resource {0}", _resourceIdentity);
throw;
}
}
/// <summary>
/// Acquires an access token for SQL using AzureServiceTokenProvider with the given SQL authentication parameters.
/// </summary>
/// <param name="parameters">The parameters needed in order to obtain a SQL access token</param>
/// <returns></returns>
public async Task <SqlAuthenticationToken> AcquireTokenAsync(SqlAppAuthenticationParameters parameters)
{
string azureAdInstance = UriHelper.GetAzureAdInstanceByAuthority(parameters.Authority);
string tenantId = UriHelper.GetTenantByAuthority(parameters.Authority);
if (string.IsNullOrEmpty(azureAdInstance))
{
throw new ArgumentException("The Azure AD instance could not be parsed from the authority provided in SqlAuthenticationParameters");
}
if (string.IsNullOrEmpty(parameters.Resource))
{
throw new ArgumentException("A resource must be specified in SqlAuthenticationParameters");
}
AzureServiceTokenProvider tokenProvider = new AzureServiceTokenProvider(azureAdInstance: azureAdInstance);
var authResult = await tokenProvider.GetAuthenticationResultAsync(parameters.Resource, tenantId).ConfigureAwait(false);
return(new SqlAuthenticationToken(authResult.AccessToken, authResult.ExpiresOn));
}