(PHP Extension) Amazon SP-API Request an LWA access token

See more Amazon SP-API Examples

Request an LWA access token, make a secure HTTP POST to the LWA authentication server (https://api.amazon.com/auth/o2/token)

For more information, see https://developer-docs.amazon.com/sp-api/docs/connecting-to-the-selling-partner-api

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?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 assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$http = new CkHttp();

// Implements the following CURL command:

// curl -X POST https://example.com/auth/o2/token \
//   -H "Host: api.amazon.com" \
//   -H "Content-Type: application/x-www-form-urlencoded;charset=UTF-8" \
//   -d "grant_type=refresh_token" \
//   -d "refresh_token=Aztr|..." \
//   -d "client_id=foodev" \
//   -d "client_secret=Y76SDl2F"

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

$req = new CkHttpRequest();
$req->AddParam('grant_type','refresh_token');
$req->AddParam('refresh_token','Aztr|...');
$req->AddParam('client_id','foodev');
$req->AddParam('client_secret','Y76SDl2F');

$req->AddHeader('Host','api.amazon.com');

// resp is a CkHttpResponse
$resp = $http->PostUrlEncoded('https://api.amazon.com/auth/o2/token',$req);
if ($http->get_LastMethodSuccess() == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

$statusCode = $resp->get_StatusCode();
print 'Status Code = ' . $statusCode . "\n";

$json = new CkJsonObject();
$json->Load($resp->bodyStr());

$json->put_EmitCompact(false);
print $json->emit() . "\n";

if ($statusCode != 200) {
    print 'Failed.' . "\n";
    exit;
}

// Success returns this JSON:

// {
//   "access_token": "Atza|...",
//   "refresh_token": "Atzr|...",
//   "token_type": "bearer",
//   "expires_in": 3600
// }

// Save the JSON token to a file for use in subsequent calls.
// (this example is passing a relative file path.  You don't need to save to a file
// if, for example, you keep the access token in-memory for subsequent use...)
$success = $json->WriteFile('qa_data/tokens/sp_api_lwa_token.json');

print 'access_token: ' . $json->stringOf('access_token') . "\n";
print 'Success.' . "\n";

?>