获取刷新令牌 google api

我无法用我的代码得到我的刷新令牌。我只能得到我的访问令牌，令牌类型等, 我遵循了一些教程，比如在我的登录 URL 上加入 access_type=offline:

echo "<a href='https://accounts.google.com/o/oauth2/auth?"
. "access_type=offline&client_id=123345555.apps.googleusercontent.com& "
. "scope=https://www.googleapis.com/auth/calendar+https://www.googleapis.com/auth/plus.me&response_type=code& "
. "redirect_uri=http://www.sample.com/sample.php&state=/profile'>Google</a>";

和我的领域获得访问令牌:

$fields=array(
'code'=>  urlencode($authcode),
'client_id'=> urlencode($clientid),
'client_secret'=> urlencode($clientsecret),
'redirect_uri'=> urlencode($redirecturi),
'grant_type'=> 'authorization_code',
);

但我找不到 Refresh _ token只有 Access _ token Token _ type Id _ token和 过期。

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小开
最佳答案

Found out by adding this to your url parameters

approval_prompt=force

Update:

Use access_type=offline&prompt=consent instead.

approval_prompt=force no longer works https://github.com/googleapis/oauth2client/issues/453

小开

If I may expand on user987361's answer:

From the offline access portion of the OAuth2.0 docs:

When your application receives a refresh token, it is important to store that refresh token for future use. If your application loses the refresh token, it will have to re-prompt the user for consent before obtaining another refresh token. If you need to re-prompt the user for consent, include the approval_prompt parameter in the authorization code request, and set the value to force.

So, when you have already granted access, subsequent requests for a grant_type of authorization_code will not return the refresh_token, even if access_type was set to offline in the query string of the consent page.

As stated in the quote above, in order to obtain a new refresh_token after already receiving one, you will need to send your user back through the prompt, which you can do by setting approval_prompt to force.

Cheers,

PS This change was announced in a blog post as well.

小开

It is access_type=offline that you want.

This will return the refresh token the first time the user authorises the app. Subsequent calls do not force you to re-approve the app (approval_prompt=force).

See further detail: https://developers.google.com/accounts/docs/OAuth2WebServer#offline

小开

Hi I followed following steps and I had been able to get the refresh token.

Authorization flow has two steps.

  1. Is to obtain the authorization code using https://accounts.google.com/o/oauth2/auth? URL.

    For that a post request is sent providing following parameters. 'scope=' + SCOPE + '&client_id=' + CLIENTID + '&redirect_uri=' + REDIRECT + '&response_type=' + TYPE + '&access_type=offline' Providing above will receive a authorization code.

  2. Retrieving AcessToken and RefreshToken using https://accounts.google.com/o/oauth2/token? URL. For that a post request is sent providing following parameters.

    "code" : code, "client_id" : CID, "client_secret" : CSECRET, "redirect_uri" : REDIRECT, "grant_type" : "authorization_code",

So in your first attempt once you authorize the permissions you will be able to get the Refresh token. Subsequent attempts will not provide the refresh token. If you want the token again the revoke the access in you application.

Hope this will help someone cheers :)

小开

This is complete code in PHP using google official SDK

$client = new Google_Client();
## some need parameter
$client->setApplicationName('your application name');
$client->setClientId('****************');
$client->setClientSecret('************');
$client->setRedirectUri('http://your.website.tld/complete/url2redirect');
$client->setScopes('https://www.googleapis.com/auth/userinfo.email');
## these two lines is important to get refresh token from google api
$client->setAccessType('offline');
$client->setApprovalPrompt('force'); # this line is important when you revoke permission from your app, it will prompt google approval dialogue box forcefully to user to grant offline access
小开

OAuth has two scenarios in real mode. The normal and default style of access is called online. In some cases, your application may need to access a Google API when the user is not present，It's offline scenarios . a refresh token is obtained in offline scenarios during the first authorization code exchange.

So you can get refersh_token is some scenarios ,not all.

you can have the content in https://developers.google.com/identity/protocols/OAuth2WebServer#offline .

小开

For our app we had to use both these parameters access_type=offline&prompt=consent. approval_prompt=force did not work for us

小开

Since March 2016, use prompt=consent to regenerate Google API refresh token.

As mentioned in https://github.com/googleapis/oauth2client/issues/453,

approval_prompt=force has been replaced with prompt=none|consent|select_account

小开

For those using the Google API Client Library for PHP and seeking offline access and refresh tokens beware as of the time of this writing the docs are showing incorrect examples.

currently it's showing:

$client = new Google_Client();
$client->setAuthConfig('client_secret.json');
$client->addScope(Google_Service_Drive::DRIVE_METADATA_READONLY);
$client->setRedirectUri('http://' . $_SERVER['HTTP_HOST'] . '/oauth2callback.php');
// offline access will give you both an access and refresh token so that
// your app can refresh the access token without user interaction.
$client->setAccessType('offline');
// Using "consent" ensures that your application always receives a refresh token.
// If you are not using offline access, you can omit this.
$client->setApprovalPrompt("consent");
$client->setIncludeGrantedScopes(true);   // incremental auth

source: https://developers.google.com/identity/protocols/OAuth2WebServer#offline

All of this works great - except ONE piece 

$client->setApprovalPrompt("consent");

After a bit of reasoning I changed this line to the following and EVERYTHING WORKED 

$client->setPrompt("consent");

It makes sense since using the HTTP requests it was changed from approval_prompt=force to prompt=consent. So changing the setter method from setApprovalPrompt to setPrompt follows natural convention - BUT IT'S NOT IN THE DOCS!!! That I found at least.


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