An elegant way to find shortest and fastest route in Google Maps API v3?

Question

I am making a taxi fare calculator. One of the business requirements is that, the company wants the shortest and fastest route options. I know Google directionService by def

Answer 1

I took code from Soldeplata Saketos answer and edited it since it wasn't working. Added params so you can just call it with it like.

shortestRoute(origin, destination, map); 

Works for me all though I'm not sure how correct it is.

Here:

function shortestRoute(origin, destination, map) {

  directionsService = new google.maps.DirectionsService();
  var routesResponses = [];
  //avoiding tolls
  directionsService.route({
    origin: origin,
    destination: destination,
    provideRouteAlternatives: true,
    avoidTolls: true,
    travelMode: google.maps.TravelMode.DRIVING
  }, function (response, status) {
    if (status === google.maps.DirectionsStatus.OK) {
      routesResponses.push(response);
    } else {
      window.alert('Directions request failed due to ' + status);
    }
  });
  //avoiding highways
  directionsService.route({
    origin: origin,
    destination: destination,
    provideRouteAlternatives: true,
    avoidHighways: true,
    travelMode: google.maps.TravelMode.DRIVING
  }, function (response, status) {
    if (status === google.maps.DirectionsStatus.OK) {
      routesResponses.push(response);
    } else {
      window.alert('Directions request failed due to ' + status);
    }

    //Results analysis and drawing of routes
    var fastest = Number.MAX_VALUE,
      shortest = Number.MAX_VALUE;

    routesResponses.forEach(function (res) {
      res.routes.forEach(function (rou, index) {
        console.log("distance of route " + index + ": ", rou.legs[0].distance.value);
        console.log("duration of route " + index + ": ", rou.legs[0].duration.value);
        if (rou.legs[0].distance.value < shortest) shortest = rou.legs[0].distance.value;
        if (rou.legs[0].duration.value < fastest) fastest = rou.legs[0].duration.value;

      })
    })
    console.log("shortest: ", shortest);
    console.log("fastest: ", fastest);
    //painting the routes in green blue and red
    routesResponses.forEach(function (res) {
      res.routes.forEach(function (rou, index) {
        new google.maps.DirectionsRenderer({
          map: map,
          directions: res,
          routeIndex: index,
          polylineOptions: {
            strokeColor: rou.legs[0].duration.value == fastest ? "red" : rou.legs[0].distance.value == shortest ? "darkgreen" : "blue",
            strokeOpacity: rou.legs[0].duration.value == fastest ? 0.8 : rou.legs[0].distance.value == shortest ? 0.9 : 0.5,
            strokeWeight: rou.legs[0].duration.value == fastest ? 9 : rou.legs[0].distance.value == shortest ? 8 : 3,
          }
        });
      });
    });
  });
}