A simple Object database with emitter.

npm i smujmaiku/objdb

const db = new ObjDb();

db.set('a.b', 1);
db.get('a');
// { b: 1 }

db.on('c', console.log);
db.set('c.d', 2);
// { d: 2 }

conf is an Object of configurations:

• debounce: Time in ms to debounce emits.
• upkeep: Time in ms to run cleaning functions.
• expire: Default time in ms to expire set data.
• permanent: Default set data to not expire.

db parameter is sent directly to the set(db) method. debug allows providing a function to send some debugging information to.

Creates a listener on the name provided.

Creates a one time listener on the name provided. This will fire immediately if data already exists at that name.

Releases a listener matching the name. Should a cb be provided that will be matched as well. Providing true as the name will release all listeners.

Returns data at the name.

Sets data at the name. This will debounce firing emitters related to this name. meta Object data will be stored separate of the data and can contain the following:

• e: Time to expire against Date.now()
• p: Flag as permanent and to not expire.

data and meta Objects can be combined into a single Object obj and provided as a single argument.

set({
	'a': 1,
	'a$meta': { p: true },
	'b.c': 2,
});
// Is equivalent to:
set('a', 1, { p: true });
set('b.c', 2);

Deletes names data. Can be provided an Array of names. This will debounce firing emitters related to these names.

Restores a database from a file stream. Providing a path as the stream will create the file stream for that path.

Creates a database backup to a file stream. Providing a path as the stream will create the file stream for that path.

Copyright (c) 2017-2019, Michael Szmadzinski. (MIT License)