private async Task <string> getAuthToken(string clientId, string clientSecret, string tokenUrl)
{
if (_tokenDict.TryGetValue(clientId, out var token))
{
if (token.IsValid())
{
return(token.GetAccessToken());
}
else
{
this.removeAuthToken(clientId);
}
}
using (var client = _clientFactory.CreateClient())
{
var response = await client.RequestClientCredentialsTokenAsync(new ClientCredentialsTokenRequest
{
Address = tokenUrl,
ClientId = clientId,
ClientSecret = clientSecret
});
if (response.IsError)
{
return(null);
}
var cachedToken = new CachedToken(response);
_tokenDict.TryAdd(clientId, cachedToken);
return(cachedToken.GetAccessToken());
}
}
