public async Task <RequestTokenResponse> RequestToken(string callbackUrl = null)
{
var endpoint = this.GetOAuthUrl("request_token");
var parameters = new Query();
if (!string.IsNullOrEmpty(callbackUrl))
{
parameters.Add(OAuthHelper.OAuthParameters.Callback, callbackUrl);
}
using var request = WebUtility.CreateOAuthRequest(HttpMethod.Post, endpoint, this.Api, parameters);
var response = await this.Api.SendRequest <string>(request).ConfigureAwait(false);
return(new RequestTokenResponse(response));
}
public async Task <TwitterApi> AccessToken(string requestToken, string verifier)
{
if (string.IsNullOrEmpty(requestToken))
{
throw new ArgumentNullException(nameof(requestToken));
}
if (string.IsNullOrEmpty(verifier))
{
throw new ArgumentNullException(nameof(verifier));
}
var parameters = new Query
{
[OAuthHelper.OAuthParameters.Token] = requestToken,
[OAuthHelper.OAuthParameters.Verifier] = verifier,
};
var endpoint = this.GetOAuthUrl("access_token");
var request = WebUtility.CreateOAuthRequest(HttpMethod.Post, endpoint, this.Api, parameters);
var response = await this.Api.SendRequest <string>(request).ConfigureAwait(false);
var values = WebUtility.ParseQueryString(response);
if (values.TryGetValue("oauth_token", out var oauthToken))
{
this.Api.AccessToken = oauthToken;
}
if (values.TryGetValue("oauth_token_secret", out var oauthTokenSecret))
{
this.Api.AccessTokenSecret = oauthTokenSecret;
}
if (values.TryGetValue("user_id", out var userId))
{
this.Api.UserId = long.Parse(userId);
}
if (values.TryGetValue("screen_name", out var screenName))
{
this.Api.ScreenName = screenName;
}
return(this.Api);
}