public async Task <string> GetAuthToken()
{
_client.ClearHeaders();
_client.SetAcceptHeader(MediaTypeFormUrlEncoded);
var headers = new Dictionary <string, string>
{
{ "grant_type", "client_credentials" },
{ "client_id", _clientId },
{ "client_secret", _clientSecret }
};
_client.SetHeaders(headers);
var keyValues = new List <KeyValuePair <string, string> > {
new KeyValuePair <string, string>("grant_type", "client_credentials"),
new KeyValuePair <string, string>("client_id", _clientId),
new KeyValuePair <string, string>("client_secret", _clientSecret)
};
var content = new FormUrlEncodedContent(keyValues);
var result = await _client.PostAsync(OauthTokenUrl, content);
var token = await result.Content.ReadAsStringAsync();
return(token);
}