Direct question: What is the best way to save a JSON file locally and how to do it?
Details: I have a web application that receives user data using the Facebook API (Javascript SDK), I need to save this data to a JSON file locally. After saving, I move to the application written in C language that will open and interpret this JSON so that the data is saved in a database (SQLite3).
If you are looking for a client-side solution only, one option is LocalStorage .
var objteste = { 'um': 1, 'dois': 2, 'tres': 3 };
// Armazena no LocalStorage
localStorage.setItem('objteste', JSON.stringify(objteste));
// Obtém do LocalStorage
var objSalvo = localStorage.getItem('objteste');
console.log('objSalvo: ', JSON.parse(objSalvo));
However you mention database - which implies in a web service. In C #, for example, you can serialize an object and use FileSystem as a cache before sending it to the database:
var _data = new
{
um = 1,
dois = 2,
tres = 3
};
string json = JsonConvert.SerializeObject(_data);
System.IO.File.WriteAllText (@"C:\objeto.json", json);