Can not change refresh_token

Hello, i use the library https://github.com/ringcentral/ringcentral-php.

$apiResponse = $rcsdk->platform()->post('/restapi/oauth/token', [

    'refresh_token' => $data['refresh_token'],

    'grant_type' => 'refresh_token',

    'endpoint_id' => $_ENV['RC_AppKey']

]);

I get a response from the server, Unsupported grant type. What is the problem?

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Hi Alexey,

Why do you want to change the refresh token? After logged in, if the access token expired, you can call $rcsdk->platform()->refresh() to refresh the access token. If the refresh token also expired, you just need to call $rcsdk->platform()->login($option) again.

You can always check if the access token and the refresh token is still valid or not to decide what to do by calling $rcsdk->auth()->accessTokenValid() or $rcsdk->auth()->accessTokenValid(), respectively.

+ Phong

Alexey,

Can you verify that your app has the "Refresh Access Token" flow grant which is required to refresh your token? I will look like the following in the "Settings" > "OAuth Settings" > "Authorization Flows" section of your app configuration as shown below:

Thanks,
John

Instead of the code you post, could you please try '$rcsdk->platform()->refresh()' instead? Because the PHP SDK already provides method for refreshing.

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