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    express-mongoose-db

    0.1.0 • Public • Published

    express-mongoose-db

    NPM version Build Status Dependency Status

    Connect once and memorize connection for next usages

    Usage

    First - install middleware in project:

    npm i express-mongoose-db --save

    Second - add middleware to express application:

    var app = require('express')();
    app.use(require('express-mongoose-db')());

    Now you can access mongoose.connection object of mongoose module in any following middleware or route handler in express.

    API

    express-mongoose-db([options])

    Options

    You can pass options to constructor of middleware function like this: require('express-mongoose-db')(options) where options is an object with fields described below.

    Also you can modify defaults value in config property of middleware contructor like this:

    var mongoosedb = require('express-mongoose-db');
    mongoosedb.config.readPreference = 'secondary';
     
    var app = require('express')();
    app.use(mongoosedb());
     
    app.get('/', function(req, res) {
        var connection = require('mongoose').connection;
    });
     
    • host - server or replica string (default: localhost, but can be server.one.com:123,server.two.com:456)
    • db - name of database (default: test)
    • options - object, that passed to mongoose.connect.
    • And all options from connect-once, such as reconnectWait and heartbeat function.

    Events

    To know what's up in your life, we provide event-emitter to listen to. For example - this is how you know, that reconnecton happening:

    var mongoosedb = require('express-mongoose-db')(options);
    mongoosedb.connection.on('reconnect', function(err) {
        console.log("Reconnecting to mongo (" + this.retries + " retries left). " + (err.stack ? err.stack : err));
    });

    Also you can subscribe on connection event:

    var mongoosedb = require('express-mongoose-db')(options);
    mongoosedb.connection.when('available', function(err, db) {
     
    });

    express-mongoose-db will start attempts to connect straight after require.

    Install

    npm i express-mongoose-db

    DownloadsWeekly Downloads

    3

    Version

    0.1.0

    License

    MIT

    Last publish

    Collaborators

    • floatdrop