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
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;
}
为了获得刷新令牌，你必须同时添加approval_prompt=force和access_type="offline" 如果您正在使用谷歌提供的java客户端，它将看起来像这样:
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, getClientSecrets(), scopes)
.build();
AuthorizationCodeRequestUrl authorizationUrl =
flow.newAuthorizationUrl().setRedirectUri(callBackUrl)
.setApprovalPrompt("force")
.setAccessType("offline");
使用离线访问和提示:同意对我来说很有效:
auth2 = gapi.auth2.init({
client_id: '{cliend_id}'
});
auth2.grantOfflineAccess({prompt:'consent'}).then(signInCallback);
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');
