nodejs-read-write-example-async

nodejs-read-write-example-async

var fs = require('fs');

var myData = {
    name:'test',
    version:'1.0'
    },
    outputFilename = 'my.json';

// Write cache file
fs.writeFile(outputFilename, JSON.stringify(myData, null, 4), function(err) {
    if (err) {
        console.log('Error: ' + err);
    } else {
        console.log('Output: ' + outputFilename);
    }
});

// Read cache file
fs.readFile(outputFilename, 'utf8', function (err, data) {
    if (err) {
        console.log('Error: ' + err);
    }

    data = JSON.parse(data);
    console.dir(data);
});