/// <summary>
/// Retrieve access token for the configured "client_id", specified scope and resource
/// </summary>
/// <param name="parameters">Custom grant parameters</param>
/// <param name="token">Cancellation token</param>
/// <returns>Access token</returns>
/// <exception cref="TokenEndpointException">Exception during token endpoint communication</exception>
public async Task <string> GetTokenAsync(ResourceScopedAccessGrantParameters parameters,
CancellationToken token = default(CancellationToken))
{
var result = await _customGrantTokenClient
.GetTokenInternalAsync(GetPostParams(parameters), new[] { parameters.Scope }, token)
.ConfigureAwait(false);
return(result.Item1);
}
private IList <NameValuePair> GetPostParams(ResourceScopedAccessGrantParameters grantParameters)
{
var parameters = new List <NameValuePair>
{
new NameValuePair("resource", grantParameters.Resource)
};
if (grantParameters.TenantId != null)
{
parameters.Add(new NameValuePair("tenantId", grantParameters.TenantId));
}
var amr = grantParameters.AmrString;
if (amr != null)
{
parameters.Add(new NameValuePair("amr", amr));
}
return(parameters);
}
