PHP 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.

Chilkat2 PHP

<?php

use Chilkat2\JsonObject;
use Chilkat2\OAuth2;

$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 JsonObject();
try {
    $tokens->LoadFile('qa_data/tokens/box_oauth.json');

    $oauth2 = new OAuth2();
    $oauth2->TokenEndpoint = 'https://api.box.com/oauth2/token';
    $oauth2->ClientId = 'BOX_CLIENT_ID';
    $oauth2->ClientSecret = 'BOX_CLIENT_SECRET';
    $oauth2->RefreshToken = $tokens->StringOf('refresh_token');
    $oauth2->RefreshAccessToken();

    $tokens->Load($oauth2->AccessTokenResponse);

    // 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.
    $tokens->WriteFile('qa_data/tokens/box_oauth.json');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

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