Basic Node server setup config which allows to make Ajax POST call to local json files.

Local JSON POST call via Node server

var express = require('express');
var app = express();
var path = require('path');
var  fs = require('fs');

app.use(express.compress());

app.use(express.static(__dirname));

function readJsonFileSync(filepath, encoding){

    if (typeof (encoding) == 'undefined'){
        encoding = 'utf8';
    }
    var file = fs.readFileSync(filepath, encoding);
    return JSON.parse(file);
}

app.post('*', function(request,respond){

    var filepath = __dirname + ''+request.url;
    var url =  filepath.split("?");
    var json =  readJsonFileSync(path.resolve(url[0]));
    respond.json(json);
});



 var port = 212;
app.listen(process.env.PORT || port);

console.log("localhost:"+port);