tinydb

TinyDB is a tiny json file based database for NodeJS.
Normally, it's better to use it for your little project.

• auto save data in memory to local fild after add/delete item;
• all APIs have a callback function for data handling;
• name API refering to Mongoose;
• no third-party dependencies.

var TinyDB = require('tinydb');
test_db = new TinyDB('./test.db');

test_db.onReady = function() {
  console.log('database is ready for operating');

  // set info to DB
  test_db.setInfo('title', 'Test DB', function(err, key, value) {
    if (err) {
      console.log(err);
      return;
    }
    
    console.log('[setInfo] ' + key + ' : ' + value);
  });
  
  // get info from DB
  test_db.getInfo('title', function(err, key, value) {
    if (err) {
      console.log(err);
      return;
    }
    
    console.log('[getInfo] ' + key + ' : ' + value);
  });
  
  // do other things below
  test_db.forEach(function (err, item) {
    if (err) {
      console.log(err);
      return;
    }

    for (var key in item) {
      console.log(key + ' : ' + item[key]);
    }
  });
}

.flush(callback)

Write the data in memory to your specified databse file immediately.

.find(query, callback)

Find databse items. query is a object like {_id: "xxxxx"}.

.findById(id, callback)

Find database item by id, equal to .find({_id: id}, callback);

.findByIdAndRemove(id, callback)

Find database item by id and remove it from database.

.insertItem(item, idx, callback)

Insert item to database. idx is optional, default to 0.

.appendItem(item, callback)

Append item to database.Source code of function ._guid() is refering to How to create a GUID / UUID in Javascript?.mail : isaymeorg@gmail.com