PHP code example of controlabs / jwt-helper

1. Go to this page and download the library: Download controlabs/jwt-helper library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

controlabs / jwt-helper example snippets


define('PRIVATE_KEY', file_get_contents('path-to-private-key.pem'));
define('PUBLIC_KEY', file_get_contents('path-to-public-key.pem'));


use Controlabs\Helper\JWT as JWTHelper;

$iss = 'https://controlabs.github.io'; // issuer
$aud = 'https://controlabs.github.io'; // audition string
$sub = 'controlabs'; // subject
$exp = '+ 10 days'; // 'expiration constraint'

$claims = [ //public claims
    'user_id' => '7b1ded55-67bb-4c42-971d-814e15ba8c05',
    'group_id' => '2065b625-3f0e-4dda-98ed-5d48956f5ee6',
    'user_agent' => $_SERVER['HTTP_USER_AGENT'],
    'remote_addr' => $_SERVER['REMOTE_ADDR']
];

$helper = new JWTHelper(PRIVATE_KEY, PUBLIC_KEY);

$token = $helper->encode($iss, $aud, $sub, $exp, $claims);

echo json_encode([
    'token' => $token
]);


use Controlabs\Http\Exception\Unauthorized; // composer JWTHelper(PRIVATE_KEY, PUBLIC_KEY);

try {
    $payload = $helper->decode($_POST['token']);
} catch(ExpiredToken $exception) {
    throw new Unauthorized('Inalid token');
}

// or use $helper->decode($_POST['token'], true) to supress errors

if($payload['user_agent'] !== $_SERVER['HTTP_USER_AGENT']) {
    throw new Unauthorized('User agent is invalid.');
}

echo json_encode([
    'user_id' => $payload['user_id'],
    'group_id' => $payload['group_id']
]);


use Controlabs\Helper\JWT as JWTHelper;

$helper = new JWTHelper(PRIVATE_KEY, PUBLIC_KEY);

// Use only for logs or specific purposes because it extracts content without validating the token.
$payload = $helper->payload($_POST['token']);

echo json_encode([
    'user_id' => $payload['user_id'],
    'group_id' => $payload['group_id']
]);