Since I didn’t want to use MQTT I started investigating the http mode. I’m using pimatic-location now to set the location of the device.

Install pimatic-location and create a new location device.

I use a PHP script to translate the json message from OwnTracks to pimatic. I have a local webserver with PHP so I created a file on my server: location.php

add this to the file:

<?php
    header("Content-type: application/json");

    // pimatic settings
    $ip = '192.168.1.202';
    $user = 'admin';
    $pw = 'password';
    // ID of the location device in pimatic
    $device = 'my-iphone';
    
    $data = json_decode(file_get_contents("php://input"), true);
    $lat = $data['lat'];
    $lon = $data['lon'];
    file_get_contents("http://$user:$pw@$ip/api/device/$device/updateLocation?updateAddress=1&lat=$lat&long=$lon");
?>

now use http mode in OwnTracks and set it to this file like:

http://mywebsite.com/location.php