Alfred is a fast in-process key-value store for node.js.
Alfred supports:
- multiple key-value maps in one database
- atomic operations on one record
- finder streams
- activity streams
- append-only files
- compactation
- buffered and unbuffered writes
- in-memory indexes
- sorting
- replication
- integrity check
Install via npm:
$ npm install alfred
Example:
var Alfred = require('alfred');
// Open database
Alfred.open('path/to/db', function(err, db) {
if (err) { throw err; }
// define User model and its properties
var User = db.define('User', {
indexes: [{name: 'age',
fn: function(user) { return user.age; }]
});
User.property('name', 'string', {
maxLength: 100
});
User.property('active', 'boolean');
// get user by id
User.get(id, function(user) {
console.log(user.inspect());
};
// find users
User.find({age: {$gt: 18}}).all(function(users) {
console.log('Found ' + users.length + ' users with more than 18 years') ;
});
});
