How to connect to MongoDb with Hapi.js? - mongodb

Question

Does anyone know how to connect to MongoDb while using the Hapi.js framework?
I have only managed to find one example (https://github.com/Marsup/hapi-mongodb), but this requires using a plugin and has no comments in the code!
Does anyone know of a simpler way?

Answer 1

The following (using mongoose) works pretty well for me:
var Hapi = require('hapi');
var mongoose = require("mongoose");
var server = new Hapi.Server();
server.connection({ port: 3000 });
var dbUrl = 'mongodb://localhost:27017/mydb';
var dbOtions = {
db: { native_parser: true },
server: { poolSize: 5 }
};
server.register([ /* plugins */], function (err) {
if (err) {
throw err; // something bad happened loading the plugins
}
// ... Register the routes
server.start(function () {
mongoose.connect(dbUrl, dbOtions, function(err) {
if (err) server.log('error', err);
});
});
});

Answer 2

I use a hapi plugin that I wrote that connects to mongo, handles errors to log and adds bluebird promises.
'use strict';
var bluebird = require('bluebird');
var mongoose = bluebird.promisifyAll(require('mongoose'));
exports.register = function(plugin, options, next) {
mongoose.connect(options.mongo.uri, options.mongo.options, function (e) {
if (e) {
plugin.log(['error', 'database', 'mongodb'], 'Unable to connect to MongoDB: ' + e.message);
process.exit();
}
mongoose.connection.once('open', function () {
plugin.log(['info', 'database', 'mongodb'], 'Connected to MongoDB # ' + options.mongo.uri);
});
mongoose.connection.on('connected', function () {
plugin.log(['info', 'database', 'mongodb'], 'Connected to MongoDB # ' + options.mongo.uri);
});
mongoose.connection.on('error', function (e) {
plugin.log(['error', 'database', 'mongodb'], 'MongoDB ' + e.message);
});
mongoose.connection.on('disconnected', function () {
plugin.log(['warn', 'database', 'mongodb'], 'MongoDB was disconnected');
});
});
return next();
};
exports.register.attributes = {
name: 'mongoose',
version: '1.0.0'
};

Answer 3

Blog post on user authentication with passport and Mongoose
Also be aware that Hapi's model is based off of plugins so read and re-read the docs on building your own.

Answer 4

Visit http://cronj.com/blog/hapi-mongoose
Complete sample project which can help you Repo Link https://github.com/gauravgupta90/Hapi-Mongoose-Angular
Config.js
module.exports = {
server: {
host: '0.0.0.0',
port: 8000
},
database: {
host: '127.0.0.1',
port: 27017,
db: 'DatabaseName',
username: '',
password: ''
}
};
Server.js
var Hapi = require('hapi'),
Routes = require('./routes'),
config = require('./config'),
Db = require('./database');
var server = Hapi.createServer(config.server.host, config.server.port, {
cors: true
});
server.route(Routes.endpoints);
server.start(function() {
console.log('Server started ', server.info.uri);
});
Database.js
var Mongoose = require('mongoose'),
config = require('./config');
Mongoose.connect('mongodb://' + config.database.host + '/' + config.database.db);
var db = Mongoose.connection;
db.on('error', console.error.bind(console, 'connection error'));
db.once('open', function callback() {
console.log("Connection with database succeeded.");
});
exports.Mongoose = Mongoose;
exports.db = db;

Answer 5

The following works for me:
const Hapi = require("hapi");
const Mongoose = require("mongoose");
const server = new Hapi.Server({ "host": "localhost", "port": 3000 });
Mongoose.connect('mongodb://localhost:27017/testdb', { useNewUrlParser: true }, (err) => {
if (!err) { console.log('MongoDB Connection Succeeded.') }
else { console.log(`Error in DB connection : ${err}`)}
});