/// <returns>Access Token</returns>
public async Task<ICredential> AuthorizeAsync(IAuthUriSet authUriSet)
{
var client = new HttpClient();
Uri callback = webAuthenticationBroker.GetCurrentApplicationCallbackUri();
var requestToken = await client.ObtainRequestTokenAsync(
requestUri: authUriSet.RequestTokenUri,
callbackUri: callback,
httpMethod: HttpMethod.Post,
consumerCredentials: consumerCredentials);
string fullAuthorizeUrlStr = string.Format("{0}?oauth_token={1}", authUriSet.AuthorizeUri.AbsoluteUri, requestToken.Key);
var authorizationToken = await webAuthenticationBroker.AuthenticateAsync(
new Uri(fullAuthorizeUrlStr),
callback);
var accessToken = await client.ObtainAccessTokenAsync(
requestUri: authUriSet.AccessTokenUri,
httpMethod: HttpMethod.Post,
consumerCredentials: consumerCredentials,
authorizationToken: authorizationToken,
requestToken: requestToken);
return accessToken;
}
