express-rabbitmq-socketio-passport-mongoose-chat

express-rabbitmq-socketio-passport-mongoose-chat

This repository has been created as a coding exercice. Relevant modules used: express, express-validation, mongo/mongoose, passport.js, rabbitMQ, socket.io, jade, eslint.

Overview

This is a chatroom web aplication that relies on a message broker and sockets to the exchange of messages it also has a bot that responds to a specific command to get stock quotes.

Features

• Allows registered users to log in and talk with other users in a chatroom.
• Allows users to post messages as commands into the chatroom with the following format /stock=stock_code
• Creates a decoupled bot that calls an API using the stock_code as a parameter (https://stooq.com/q/l/?s=aapl.us&f=sd2t2ohlcv&h&e=csv, here aapl.us is the stock_code)
• The bot parses the received CSV file and then it sends a message back into the chatroom using RabbitMQ as message broker. The message is a stock quote that uses the following format: “APPL.US quote is $93.42 per share”. The post owner is the stock bot.
• Chat messages are ordered by their timestamps and the chatroom only shows the last 50 messages.

TODOs

• Implement tests
• Allow the use of multiple chatrooms

Getting Started

1. Clone repository

2. Install dependencies

$ npm install

3. Install nodemon globally

$ npm install nodemone -g

4. create .env file in the proyect root with the following

# mongo connection string, collections dont need to exist
MONGO_URI=xxxxxxxx

# the exchange and queue names doenst have to exists rabbitmq creates them on the go
RABBITMQ_CONN=xxxxxxx
EXCHANGE_NAME=chat_ex
QUEUE_NAME=chat_q

# previous messages shown when user connects
QUEUE_MSGS_LIMIT=50

# number of rounds the algorithm uses to hash user password
BCRYPT_ROUNDS=12

# server port
PORT=8080

SESSION_SECRET=topsecret

3. Start the server

$ npm run devStart

Available routes

The following directions are available to you using the browser:

URL	Site
/chatroom	Chat Room
/login	Login form
/register	Register form

Considerations

• Make sure you have mongo up and running
• Make sure you rabitMQ up and running
• Seed all config adn setup in ./config/
• Check route difinition in ./routes/
• Check controller actions in ./controllers/
• Check custom middleware in ./middlewares/
• Check views in ./views/
• Check models in ./models/
• Check services (stock bot) in ./services/