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(PHP Extension) Google OAuth2 Refresh Access TokenDemonstrates how to refresh a Google Access Token.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // It is assumed we previously obtained an OAuth2 access token. // This example loads the JSON access token file // saved by this example: Get Google Contacts OAuth2 Access Token $jsonToken = new CkJsonObject(); $success = $jsonToken->LoadFile('qa_data/tokens/googleContacts.json'); if ($success != true) { print 'Failed to load googleContacts.json' . "\n"; exit; } // The access token JSON looks like this: // { // "access_token": "abac.Ci-ZabcdF37-NUrmSzxbHxTsMbtlN-uPfabcdAQN_2ekzj0s5ofCzRabcdTDMGaa2Q", // "token_type": "Bearer", // "expires_in": 3600, // "refresh_token": "1/lEe5abcdNJ77eOSDBabcdkQGVmDalkwabcdR2Hatbo" // } // $oauth2 = new CkOAuth2(); $oauth2->put_TokenEndpoint('https://www.googleapis.com/oauth2/v4/token'); // Replace these with actual values. $oauth2->put_ClientId('GOOGLE-CLIENT-ID'); $oauth2->put_ClientSecret('GOOGLE-CLIENT-SECRET'); // Get the "refresh_token" $oauth2->put_RefreshToken($jsonToken->stringOf('refresh_token')); // Send the HTTP POST to refresh the access token.. $success = $oauth2->RefreshAccessToken(); if ($success != true) { print $oauth2->lastErrorText() . "\n"; exit; } // The response contains a new access token, but we must keep // our existing refresh token for when we need to refresh again in the future. $jsonToken->UpdateString('access_token',$oauth2->accessToken()); // Save the new JSON access token response to a file. $sbJson = new CkStringBuilder(); $jsonToken->put_EmitCompact(false); $jsonToken->EmitSb($sbJson); $sbJson->WriteFile('qa_data/tokens/googleContacts.json','utf-8',false); print 'OAuth2 authorization granted!' . "\n"; print 'New Access Token = ' . $oauth2->accessToken() . "\n"; ?> |
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