我想从谷歌获取访问令牌。谷歌API说，要获得访问令牌，将代码和其他参数发送到令牌生成页面，响应将是一个JSON对象，如:
{
"access_token" : "ya29.AHES6ZTtm7SuokEB-RGtbBty9IIlNiP9-eNMMQKtXdMP3sfjL1Fc",
"token_type" : "Bearer",
"expires_in" : 3600,
"refresh_token" : "1/HKSmLFXzqP0leUihZp2xUt3-5wkU7Gmu2Os_eBnzw74"
}
但是，我没有收到刷新令牌。我的回答是:
{
"access_token" : "ya29.sddsdsdsdsds_h9v_nF0IR7XcwDK8XFB2EbvtxmgvB-4oZ8oU",
"token_type" : "Bearer",
"expires_in" : 3600
}
当前回答
为了在每次验证时获得新的refresh_token，在仪表板中创建的OAuth 2.0凭据类型应该是“Other”。同样如上所述，在生成authURL时应该使用access_type='offline'选项。
当使用类型为“Web application”的凭据时，prompt/approval_prompt变量的组合将不起作用——您仍然只能在第一个请求上获得refresh_token。
其他回答
现在谷歌已经拒绝了这些参数在我的请求(access_type，提示)…:(并且根本没有“撤销访问权限”按钮。我很沮丧，因为回到我的refresh_token lol
更新: 我在这里找到了答案:D，您可以通过请求获得刷新令牌 https://developers.google.com/identity/protocols/OAuth2WebServer
curl -H "Content-type:application/x-www-form-urlencoded" \ https://accounts.google.com/o/oauth2/revoke?token={牌} 令牌可以是访问令牌，也可以是刷新令牌。如果令牌是访问令牌，并且它有相应的刷新令牌，则刷新令牌也将被撤销。 如果成功地处理了撤销，则响应的状态码为200。对于错误条件，将返回状态代码400和错误代码。
设置这个将导致刷新令牌每次都被发送:
$client->setApprovalPrompt('force');
下面给出一个例子(php):
$client = new Google_Client();
$client->setClientId($client_id);
$client->setClientSecret($client_secret);
$client->setRedirectUri($redirect_uri);
$client->addScope("email");
$client->addScope("profile");
$client->setAccessType('offline');
$client->setApprovalPrompt('force');
My solution was a bit weird..i tried every solution i found on internet and nothing. Surprisely this worked: delete the credentials.json, refresh, vinculate your app in your account again. The new credentials.json file will have the refresh token. Backup this file somewhere. Then keep using your app until the refresh token error comes again. Delete the crendetials.json file that now is only with an error message (this hapenned in my case), then paste you old credentials file in the folder, its done! Its been 1 week since ive done this and had no more problems.
For me I was trying out CalendarSampleServlet provided by Google. After 1 hour the access_key times out and there is a redirect to a 401 page. I tried all the above options but they didn't work. Finally upon checking the source code for 'AbstractAuthorizationCodeServlet', I could see that redirection would be disabled if credentials are present, but ideally it should have checked for refresh token!=null. I added below code to CalendarSampleServlet and it worked after that. Great relief after so many hours of frustration . Thank God.
if (credential.getRefreshToken() == null) {
AuthorizationCodeRequestUrl authorizationUrl = authFlow.newAuthorizationUrl();
authorizationUrl.setRedirectUri(getRedirectUri(req));
onAuthorization(req, resp, authorizationUrl);
credential = null;
}
要使用postman获取刷新令牌，下面是一个配置示例
预期响应
