node.js Geolib Example

distance.js

var app = require('express').createServer(),
    fs = require('fs'),
    geolib = require('./geolib').geolib,
    http = require('http');

app.get('/distance/:lat1/:lng1/:lat2/:lng2', function(req, res){
    var distance = geolib.getDistance({latitude: req.params.lat1, longitude: req.params.lng1 }, {latitude: req.params.lat2, longitude: req.params.lng2});
    res.send('Distance from ' + req.params.lat1 + ',' + req.params.lng1 + ' to ' + req.params.lat2 + ',' + req.params.lng2 + ' is ' + distance + ' km');
});

app.listen(3000);