curl -X POST https://{SERVER_IP}/version \
    -H 'X-API-KEY: {the key= or key2= value from /usr/local/installatron/etc/settings.ini}' \
    -H 'X-HTTP-Method-Override: GET' \
    -H 'Accept: application/json'

{
    "status": 200,
    "result": true,
    "message": "",
    "data": {
        "product": "Installatron Server",
        "version": "5.0.0",
        "build": 500,
        "version_channel": "release",
        "version_available": "5.0.0-1",
        "license": true,
        "license_expiry": 1234567890
    }
}

{
    "status": 200,
    "result": true,
    "message": "",
    "data": {
        "product": "Installatron Server",
        "version": "5.0.0",
        "build": 500,
        "version_channel": "release",
        "version_available": "5.0.0-1",
        "license": true,
        "license_expiry": 1234567890
    }
}

<?php

$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_URL => "https://{SERVER_IP}/version",
    CURLOPT_HTTPHEADER => [
        "X-API-KEY: {the key= or the key2= value from /usr/local/installatron/etc/settings.ini}",
        "X-HTTP-Method-Override: GET",
        "Accept: application/json"
    ],
    CURLOPT_RETURNTRANSFER => true
]);
if (( $response = curl_exec($ch) )=== false )
{
    trigger_error(curl_error($ch));
}
curl_close($ch);
var_export(json_decode($response, true));

?>
 

{
    "status": 200,
    "result": true,
    "message": "",
    "data": {
        "product": "Installatron Server",
        "version": "5.0.0",
        "build": 500,
        "version_channel": "release",
        "version_available": "5.0.0-1",
        "license": true,
        "license_expiry": 1234567890
    }
}

/usr/local/installatron/installatron \
    --GET /version

{
    "status": 200,
    "result": true,
    "message": "",
    "data": {
        "product": "Installatron Server",
        "version": "5.0.0",
        "build": 500,
        "version_channel": "release",
        "version_available": "5.0.0-1",
        "license": true,
        "license_expiry": 1234567890
    }
}

{
    "status": 200,
    "result": true,
    "message": "",
    "data": {
        "product": "Installatron Server",
        "version": "5.0.0",
        "build": 500,
        "version_channel": "release",
        "version_available": "5.0.0-1",
        "license": true,
        "license_expiry": 1234567890
    }
}