Walks a route and does stuff.
Calls Google Directions API for the given start and end point, decodes the polyline passing through given waypoints and then calls a function for each point.
npm install route-walker
var walker = require('route-walker');
var start = 'London,UK';
var end = 'Birmingham,UK';
walker.walk(start, end, function(location, done) {
var lat = location.lat;
var lng = location.lng;
// Do your thing here...
done();
}, function(e) {
// end of route...
}
, [waypoints]);