https://github.com/adrienjoly/persistent-harmony

A wrapper class to create persistent javascript objects, relying on harmony proxies.
https://github.com/adrienjoly/persistent-harmony

harmony-proxies javascript-objects nodejs npm-package persistence

Last synced: 7 months ago
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A wrapper class to create persistent javascript objects, relying on harmony proxies.

• Host: GitHub
• URL: https://github.com/adrienjoly/persistent-harmony
• Owner: adrienjoly
• Created: 2013-06-26T21:02:50.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2014-01-02T10:53:12.000Z (almost 12 years ago)
• Last Synced: 2025-02-28T20:48:02.915Z (7 months ago)
• Topics: harmony-proxies, javascript-objects, nodejs, npm-package, persistence
• Language: JavaScript
• Size: 143 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# persistent-harmony

A node.js wrapper class to create persistent javascript objects, relying on harmony proxies.

## Rationale / use case

I developed this module because:

- I was generating big hashmaps / associative arrays in node.js, indexing data computed from my MongoDB database

- I wanted to store the resulting javascript objects to my database so that I could load them back to memory, instead of re-computing the indices at every restart of my node.js app.

- I didn't want to update and query these indices using asynchronous mongodb calls, but use native javascript structures instead (sychronous and fast).

## Installation

	npm install persistent-harmony

	

## Usage

	var ph = require("persistent-harmony");

	new ph.MongoPH({/* default mongodb args */}, function(mongoPH){

		var mymap = mongoPH.wrap("mymap", {/* empty object instance */}, function(){

			console.log("mymap is now synchronized to its mongodb collection");

			mymap.first = "coucou"; // => stored as {_id:"first", v:"coucou"} in mongodb

			console.log("myapp", mymap);

		});

	});

## Don't forget to add the `--harmony-proxies` when starting node!

	node --harmony-proxies tests.js

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