/*

NodeJS CMX Receiver

A basic web service to accept CMX data from a Cisco Meraki network

- Accept a GET request from Meraki and respond with a validator

- Meraki will POST to server, if validated.

- POST will contain a secret, which can be verified by the server.

- JSON data will be in the req.body.data. This will be available in the cmxData function's data object.

-- This skeleton app will only place the data received on the console. It's up to the developer to use this how ever required

*/

// CHANGE THESE CONFIGURATIONS to match your CMX configuration

var port = process.env.OVERRIDE_PORT || process.env.PORT || 1890;

var secret = process.env.SECRET || 'enterYourSecret';

var validator = process.env.VALIDATOR || 'enterYourValidator';

var route = process.env.ROUTE || '/cmx';

// All CMX JSON data will end up here. Send it to a database or whatever you fancy.

// data format specifications: https://documentation.meraki.com/MR/Monitoring_and_Reporting/CMX_Analytics#Version_2.0

function cmxData(data) {

console.log('JSON Feed: ' + JSON.stringify(data, null, 2));

}

//**********************************************************

// Express Server

var express = require('express');

var app = express();

var bodyParser = require('body-parser');

//

app.use(bodyParser.json({ limit: '25mb' }));

// CMX Location Protocol, see https://documentation.meraki.com/MR/Monitoring_and_Reporting/CMX_Analytics#API_Configuration

//

// Meraki asks for us to know the secret

app.get(route, function(req, res) {

console.log('Validator = ' + validator);

res.status(200).send(validator);

});

//

// Getting the flow of data every 1 to 2 minutes

app.post(route, function(req, res) {

if (req.body.secret == secret) {

console.log('Secret verified');

cmxData(req.body);

} else {

console.log('Secret was invalid');

}

res.status(200);

});

// Start server

app.listen(port, function() {

console.log('CMX Receiver listening on port: ' + port);

});