Recently, I started exploring NodeJS and decided to utilize the npm spotcrime package for retrieving crime data based on user input location through an ajax call triggered by a button click. The npm documentation provides the following code snippet for using the package:
var spotcrime = require('spotcrime');
// somewhere near phoenix, az
var loc = {
lat: 33.39657,
lon: -112.03422
};
var radius = 0.01; // this is miles
spotcrime.getCrimes(loc, radius, function(err, crimes){
});
The above code functions correctly when executed independently, returning accurate crime json data. However, I am facing challenges in implementing this through an ajax call upon clicking the button. Any insights or guidance on this puzzle would be greatly appreciated. Thank you in advance :)
UPDATE
Below is the server-side code snippet:
var express = require('express');
var app = express();
var dataFile = require('./data/data.json');
var reload = require('reload');
var path = require('path');
app.set('port', process.env.PORT || 3000);
app.set('appData', dataFile);
app.set('view engine', 'ejs');
app.set('views', __dirname + '/views');
app.use(express.static(path.join(__dirname, '/public')));
app.use(require('./routes/index'));
app.use(require('./routes/information'));
app.use(require('./routes/spotcrime'));
var server = app.listen(app.get('port'), function(){
console.log('Go to http://localhost:' + app.get('port')+ ' on your
browser');
});
reload(app);
Additionally, here is the content of the spotcrime.js file:
var express = require('express');
var router = express.Router();
var spotcrime = require('spotcrime');
router.get('/spotcrime', function(request, response){
var loc = {
lat: 33.39657,
lon: -112.03422
};
var radius = 0.01; // this is miles
spotcrime.getCrimes(loc, radius, function(err, crimes){
response.send(crimes);
});
});
module.exports = router;
Despite my continuous efforts, I have not been able to achieve any visible results. If you have any suggestions or workaround solutions, please provide them. Your help will be highly valued.