Quai Mongo

This module provide logging for Quai Platform. It inserts messages to MongoDB.
Click here for more details

Index

• Examples
• Methods
• Install
• Misc

Examples

Install as a library:
npm install git+ssh://[email protected]:yp-engineering/quai-mongo.git

Exapmle 1 - not using callbacks

'use strict';

var db = require('quai-mongo');
var message = {foo: 'bar'}

var insert = db('mongodb://localhost/quai');
// wait a bit for db connection
setTimeout(function(){
  insert(message);
}, 100);

// =>
// connected to mongoDB mongodb://localhost/quai
// Saved to MongoDB. message: {"foo":"bar","_id":"51a908865dc559285f000001"}

example 2 - using callbacks

'use strict';

var db = require('quai-mongo');
var message = {foo: 'bar'}

var insert = db('mongodb://localhost/quai', function(err){ 
  if (err) { console.error(err); return 1; };
  console.log('Connected.');

  insert(message, function(err){
    if (err) { console.error(err); return 1; };

    console.log('Saved. message: ', message);
  });
});

// =>
// Connected.
// Saved. message:  { foo: 'bar' }

Methods

var db = require('./index.js');

db(mongoUrl, cb);

Connet to a MongoDB at mongoUrl. cb is optional callback. It returns a function that insert a message(see below).
when connection established, cb(err) fires.

var insert = db('mongodb://localhost/quai');

insert(message, cb);

Inserts message to MongoDB.
When Insert is complete cb(err) is fired.

Install

as a library

	npm install git+ssh://[email protected]:yp-engineering/quai-mongo.git

and require('quai-mongo'); in your code

for development

	git clone [email protected]:yp-engineering/quai-mongo.git
npm install

node test.js

Misc

Coding Guidlines

• Style Guide - http://nodeguide.com/style.html
• Avoid frameworks/abstractions (web, test, control flow) untill you feel a pain
• "use strict" at the top of every js file
• Process monitoring - I like forever
• GET /health end-point
• Single entry point for dependencies and using Mocks during unit tests
• App should be able to run as a command line app. app = require('./app')
• Use Callbacks when you want to know if something has finished. app.init(doneInit); app.start(readyToServe);
• Use Event Emitter when you want to notify someone multiple times or when you have many listeners