PHP Extension Requires Chilkat v11.5.0+

Box: Refresh and Save Rotated OAuth Tokens

See more Box Examples

Refresh the user token saved by the authorization example. Box refresh tokens are single-use and expire after 60 days. Serialize refreshes for a token pair and save the replacement immediately; do not run concurrent refresh jobs.

See the Box API guide for setup and the complete workflow.

PHP Extension

<?php

include("chilkat.php");

$success = false;

//  Requires Chilkat 11.5.0 or later and a previously unlocked Chilkat bundle.
//  See Global Unlock Sample.
//  Guide: Box API Guide.

$success = false;

$tokens = new CkJsonObject();
$success = $tokens->LoadFile('qa_data/tokens/box_oauth.json');
if ($success != true) {
    print $tokens->lastErrorText() . "\n";
    exit;
}

$oauth2 = new CkOAuth2();
$oauth2->put_TokenEndpoint('https://api.box.com/oauth2/token');
$oauth2->put_ClientId('BOX_CLIENT_ID');
$oauth2->put_ClientSecret('BOX_CLIENT_SECRET');
$oauth2->put_RefreshToken($tokens->stringOf('refresh_token'));
$success = $oauth2->RefreshAccessToken();
if ($success != true) {
    print $oauth2->lastErrorText() . "\n";
    exit;
}

$success = $tokens->Load($oauth2->accessTokenResponse());
if ($success != true) {
    print $tokens->lastErrorText() . "\n";
    exit;
}

//  The previous refresh token is now invalid. Preserve this response even if
//  your normal token-store write fails. Do not retry with the old refresh token.
$success = $tokens->WriteFile('qa_data/tokens/box_oauth.json');
if ($success != true) {
    print $tokens->lastErrorText() . "\n";
    exit;
}

print 'New access and refresh tokens saved. Do not log their values.' . "\n";

?>