google direction

google direction.js

var maps = require("@google/maps");

var client = maps.createClient({
    key: "AIzaSyCSA6hgjkJhkvwO7OP9dG230uEP0ryFXns"
});

function generateDateTime(hour, minutes) {
    var d = new Date();
    d.setHours(hour,minutes,0,0);
    d.setDate(d.getDate() + 1);
    return d;
}

var departureOptions = [
    generateDateTime(6, 0),
    generateDateTime(6, 15),
    generateDateTime(6, 30),
    generateDateTime(6, 45),
    generateDateTime(7, 0),
    generateDateTime(7, 15),
    generateDateTime(7, 30),
    generateDateTime(7, 45),
    generateDateTime(8, 0),
    generateDateTime(8, 15),
    generateDateTime(8, 30),
    generateDateTime(8, 45),
    generateDateTime(9, 0),
    generateDateTime(9, 15),
    generateDateTime(9, 30),
    generateDateTime(9, 45)
]

var allOptions = [];

var promises = departureOptions.map(dateTime => {
    return new Promise((resolve, reject) => {
        client.directions({
            origin: "102 Gauen Ave, Collinsville, IL 62234",
            destination: "1227 Washington Ave, St. Louis, MO 63103",
            departure_time: dateTime,
            traffic_model: 'optimistic'
        }, (a, response) => {
            var routes = response.json.routes.map(r => {
                return {
                    summary: r.summary,
                    distance: r.legs[0].distance.value,
                    duration: r.legs[0].duration.value,
                }
            });

            console.log(routes);

            resolve(routes);
        });
    });
})

Promise.all(promises).then(routesPerDateTime => {
    var allRoutes = [].concat.apply([], routesPerDateTime);
    
    console.log(JSON.stringify(allRoutes));
});