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我正在嘗試將Facebook登錄集成到使用Azure移動服務的Xamarin Android應用程序中。嘗試調用Facebook圖形API時出現Azure移動服務「Bad signature」錯誤
MobileServiceUser user = await client.LoginAsync(this.Activity, MobileServiceAuthenticationProvider.Facebook);
var httpClient = new System.Net.Http.HttpClient();
var url = "https://graph.facebook.com/me?access_token=" + user.MobileServiceAuthenticationToken;
var fbUser = await httpClient.GetAsync(url);
var response = await fbUser.Content.ReadAsStringAsync();
,我也得到:
{
"error": {
"message": "Bad signature",
"type": "OAuthException",
"code": 1
}
}
你有任何想法是返回訪問令牌無效?或者MobileServiceAuthenticationToken不是我應該使用的Facebook訪問令牌?