Postman akamai edge-grid code doesn't work in php

Question

Postman akamai edge-grid code doesn't work in php

671 Views Asked by Kerim Gökceoglu At 03 April 2025 at 06:57

I am trying to make an GET-Request to my akamai server. With Postman, evertyhing works. But when I copy the code from the code generator and paste it into my php code, I can't Authenticate anymore.

Postman gives me following code:

    <?php

$curl = curl_init();

curl_setopt_array($curl, array(
CURLOPT_URL => 'https://akab************************',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'GET',
CURLOPT_HTTPHEADER => array(
'Authorization: EG1-HMAC-SHA256 client_token=***************;access_token=;timestamp=20201209T15:07:33+0000;nonce=4616dcc7-5cd8-49b5-9c24-ac1b9bf9f2f5;signature=OVXlnNav8GUM/UyNO6KFcYS1/kQ='
),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

my php code looks like this:

<?php
  include 'akamai-open-edgegrid-client-1.0.0.phar';
  require_once 'src/Authentication.php';
require_once 'src/Authentication/Timestamp.php';
require_once 'src/Authentication/Nonce.php';
require_once 'src/Authentication/Exception.php';
require_once 'src/Authentication/Exception/ConfigException.php';
require_once 'src/Authentication/Exception/SignerException.php';
require_once 'src/Authentication/Exception/SignerException/InvalidSignDataException.php';
    
    
    $curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => '******',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'GET',
  CURLOPT_HTTPHEADER => array(
    'Authorization: EG1-HMAC-SHA256 client_token=*****;access_token=************;timestamp=20201209T15:07:33+0000;nonce=18759478-be33-4fe2-b417-557912445d93;signature=wW6/5RHKzXVQrS3uQ9bE3c83hl6jhQGjpQa2Ldi2qLI='
  ),
));

$response = curl_exec($curl);
echo $response = curl_exec($curl);
curl_close($curl);
?>
<html>
    <head>  
    </head> 
    <body>
        <div id="response">
        <?= $response ?></div>
    </body>

</html>

My response in my website says:

{ "type": "https://problems.luna.akamaiapis.net/-/pep-authn/request-error", "title": "Bad request", "status": 400, "detail": "Invalid timestamp", "instance": "https://akab****************", "method": "GET", "serverIp": "104.84.107.234", "clientIp": "95.90.201.65", "requestId": "5792bf0d", "requestTime": "2020-12-09T14:53:30Z" }

It seems like I have an error in my timestamp value. I tried to generate it dynamically, but I got the same error there too.

Original Q&A

There are 2 best solutions below

**Sourabh Bhutani** · Answer 1

I followed this link for akamai api integration with php.

First installed edgegrid-client library via composer.

composer require akamai-open/edgegrid-client

I need to fetch all cpcodes via api. so tried below snippet to achieve and worked fine.

$client = new Akamai\Open\EdgeGrid\Client([ 'base_uri' => 'https://akaa-baseurl-xxxxxxxxxxx-xxxxxxxxxxxxx.luna.akamaiapis.net' ]);
$client->setAuth('client_token', 'client_secret','access_token');
$response = $client->get('/cprg/v1/cpcodes'); if ($response) { $result = json_decode($response->getBody()); }

**Guillaume** · Answer 2

The timestamp should be dynamic and close enough to actual time for the request to be allowed. If you change the timestamp, you also need to recalculate signature.

Algorithm for EdgeGrid authentication is complex, you better rely on related library to generate this header. Please read https://developer.akamai.com/blog/2017/02/03/akamai-open-edgegrid-php-now-beta

Php libraries for EdgeGrid.

Postman akamai edge-grid code doesn't work in php

There are 2 best solutions below

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