How to save JSON file with Node.js

Question

I want to make a website to test some things. The site is running on my home server done with Wamp. I was told that I could make a small database using JSON files. I have a JSON file in the website folder that contains the following:

[
        { 
            "titulo":"Filme A",
            "titulo original":"Movie A",
            "duracao":"120 min",
            "genero":"Genero 1",
            "Atores":"Nome 1, Nome 2",
            "Rate":"1",
            "Visto":"sim"
        },
        {
            "titulo":"Filme B",
            "titulo original":"Movie B",
            "duracao":"160 min",
            "genero":"Genero 2",
            "Atores":"Nome 1, Nome 2",
            "Rate":"2",
             "Visto":"sim"
        },
        {
            "titulo":"Filme C",
            "titulo original":"Movie C",
            "duracao":"140 min",
            "genero":"Genero 3",
            "Atores":"Nome 1, Nome 2",
            "Rate":"",
             "Visto":"nao"
        }
]

With your help I was able to list the properties of these objects from the JSON array.

Now I’m trying to save a new object inside this JSON array through information that the user puts when the questions are asked and for that I need a scripting on the server side, I chose Node.js because I’m a little more familiar with Javascript. I have little knowledge and almost none of Node.js. But I would still like any help from you to try to learn something. I have read on the internet about Node.js and JSON but still don’t understand how to save JSON on the server using Node. Any explanation will be very helpful.

See on Jsfiddle

Answer 1

The most indicated, which was cited by Joel is indeed to use Mongo, but if you are interested in using a file manipulation API on Node.JS, you can use the Filesystem API, see an example below

var fs = require('fs');
fs.writeFile("/tmp/test", "Hey there!", function(err) {
    if(err) {
        console.log(err);
    } else {
        console.log("The file was saved!");
    }
}); 

Or as the example below, it could be using Node.JS with connection to the Mongodb

var MongoClient = require('mongodb').MongoClient,
Grid = mongo.Grid;

// Connect to the db
MongoClient.connect("mongodb://localhost:27017/exampleDb", function(err, db) {
    if(err) return console.dir(err);

    var grid = new Grid(db, 'fs');
    var buffer = new Buffer("Hello world");
    grid.put(buffer, {metadata:{category:'text'}, content_type: 'text'}, function(err, fileInfo) {
        if(!err) {
             console.log("Finished writing file to Mongo");
        }
    });
});

Answer 2

I recommend using a Mongodb JSON database on Node.js.

http://nodebr.com/nodejs-e-mongodb-introducao-ao-mongoose/

I recommend learning and reading more on how to use Mongodb:

http://net.tutsplus.com/tutorials/databases/getting-started-with-mongodb/

https://education.mongodb.com/