Run, then start jenny and point to -u http://localhost:8000

sensor-commander.js

var Hapi = require('hapi');

var server = new Hapi.Server(8000);
var commands = [];

server.route({
    method: 'GET',
    path: '/{path*}',
    handler: function (request, reply) {

        reply(commands);
        commands = [];
    }
});

server.route({
    method: 'POST',
    path: '/{path*}',
    handler: function (request, reply) {

        console.log(request.payload);
        reply('');
    }
});

server.start(function () {

    console.log('Listening on ' + server.info.port);
});


process.stdin.on('data', function (data) {

    commands.push(JSON.parse(data.toString()));
});