public async Task <OAuth2AccessToken> ExchangeAuthCodeForAccessTokenAsync(string code)
{
HttpClient httpClient = new HttpClient();
string postUrl = OAuth2Helper.FitbitOauthPostUrl;
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair <string, string>("grant_type", "authorization_code"),
new KeyValuePair <string, string>("client_id", ClientId),
//new KeyValuePair<string, string>("client_secret", AppSecret),
new KeyValuePair <string, string>("code", code),
new KeyValuePair <string, string>("redirect_uri", this.RedirectUri)
});
string clientIdConcatSecret = OAuth2Helper.Base64Encode(ClientId + ":" + ClientSecret);
httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", clientIdConcatSecret);
HttpResponseMessage response = await httpClient.PostAsync(postUrl, content);
string responseString = await response.Content.ReadAsStringAsync();
OAuth2AccessToken accessToken = OAuth2Helper.ParseAccessTokenResponse(responseString);
return(accessToken);
}
public async Task <OAuth2AccessToken> RefreshToken(string refreshToken)
{
string postUrl = FitbitOauthPostUrl;
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair <string, string>("grant_type", "refresh_token"),
new KeyValuePair <string, string>("refresh_token", refreshToken),
});
var httpClient = new HttpClient();
var clientIdConcatSecret = OAuth2Helper.Base64Encode(ClientId + ":" + ClientSecret);
httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", clientIdConcatSecret);
HttpResponseMessage response = await httpClient.PostAsync(postUrl, content);
string responseString = await response.Content.ReadAsStringAsync();
return(OAuth2Helper.ParseAccessTokenResponse(responseString));
}