Matthew Patrick Cashatt Matthew Patrick Cashatt - 1 month ago 17
Node.js Question

Using Node.JS, how do I read a JSON object into (server) memory?

Background



I am doing some experimentation with Node.js and would like to read a JSON object, either from a text file or a .js file (which is better??) into memory so that I can access that object quickly from code. I realize that there are things like Mongo, Alfred, etc out there, but that is not what I need right now.

Question



How do I read a JSON object out of a text or js file and into server memory using JavaScript/Node?

Thanks!

Answer

Sync:

var fs = require('fs');
var obj = JSON.parse(fs.readFileSync('file', 'utf8'));

Async:

var fs = require('fs');
var obj;
fs.readFile('file', 'utf8', function (err, data) {
  if (err) throw err;
  obj = JSON.parse(data);
});