protected override async Task <HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var accessToken = _accessTokenAccessor.AccessToken;
if (accessToken == null)
{
throw new InvalidOperationException("Missing access token.");
}
if (accessToken.IsExpired)
{
if (_accessTokenRefresher == null)
{
throw new InvalidOperationException(
$"Access token is expired and there is no [{nameof(IAccessTokenRefresher)}].");
}
accessToken = await _accessTokenRefresher.RefreshAccessToken(
accessToken.RefreshToken,
cancellationToken);
await _accessTokenStore.StoreTokenAsync(accessToken, cancellationToken);
}
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken.Value);
return(await base.SendAsync(request, cancellationToken));
}
