Using the WordPress REST API with JWT authentication
Step 1. Install this plugin => https://wordpress.org/plugins/advanced-access-manager/. The free version will suffice. This goes on the site you will be xtracting data from. The REST API must be enabled in the WordPress settings.
Step 2. Configure the plugin and on it’s Settings tab add the Secret as per this page => https://aamplugin.com/article/how-to-authenticate-wordpress-user-with-jwt-token
On the Page pulling the data from the above server, use the following PHP code :
function getToken()
{
$token="";
$html="<div>";
$postRequest = array(
'username' => 'ANY_ADMIN_USERNAME',
'password' => 'THE_PASSWORD_FOR_SAID_USER'
);
$h=http_build_query($postRequest);
$ch = curl_init("https://YOUR_SERVER_NAME.COM/wp-json/aam/v1/authenticate");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,$h);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_VERBOSE, true);
$server_output = curl_exec ($ch);
$info = curl_getinfo($ch);
//$html="<pre>".print_r($info,true)."</pre>";
//echo $html;
if ($server_output === false)
{
die('Error getting JWT token on WordPress for API integration.');
}
$server_output = json_decode($server_output);
if ($server_output === null && json_last_error() !== JSON_ERROR_NONE)
{
die('Invalid response getting JWT token on WordPress for API integration.');
}
if (!empty($server_output->token))
{
$token = $server_output->token; # Token is here
curl_close ($ch);
return $token;
}
else
{
die('Invalid response getting JWT token on WordPress for API integration.');
}
return false;
}The when you need the token, call it like such :
$mytoken=getToken();And that’s about it…..