connect-once

Connect once and memorize connection for next usages

Usage

Install package with npm:

npm i connect-once --save

Then create a connection:

var connectOnce = require('connect-once');

var connection = new connectOnce({ 
    retries: 60, 
    reconnectWait: 1000
}, MongoClient.connect, 'mongodb://localhost/test');

connection.when('available', function (err, db) {
    // Do stuff
});

Heartbeat

Heartbeat is useful, when you want check connection from time to time. For example, if you working with mongodb and cache connection to db - what happens when server, which connection binded to goes to heaven? Connection is lost and programmer should recreate it.

Note: for now there is no way to stop heartbeats.

var connectOnce = require('connect-once');

var connection = new connectOnce({ 
    heartbeat: function (db, beat) {
        db.stats(function (err) {
            if (!err) { beat(); }
        });
    }
}, MongoClient.connect, 'mongodb://localhost/test');

connection.when('available', function (err, db) {
    // Do stuff
});

API

Read the documentation of Connection class.

Index

connect-once

Usage

Heartbeat

API

License