test/index.html

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <title>
        <%= htmlWebpackPlugin.options.title %>
    </title>
</head>

<body>
    <script>
        const args = { key: '703926d2-dd29-4425-9591-d49100485729', profile: 'car' };
        const ghOptimization = new GHOptimization.GraphHopperOptimization(args);
        ghOptimization.addPoint({ lng: -0.103512, lat: 51.503634 });
        ghOptimization.addPoint({ lng: -0.074673, lat: 51.519339 });
        ghOptimization.addPoint({ lng: -0.103168, lat: 51.52681 });
        ghOptimization.addVehicle({
            vehicle_id: `_vehicle_0`,
            start_address: {
                location_id: '_start_location',
                lon: -0.103512,
                lat: 51.503634
            }
        });
        let p = ghOptimization.doVRPRequest();
        p.then(a => { console.log(a); return a; });
    </script>
</body>

</html>