Dobermensch / zegal-fullstack-test

FullStack test for Zegal utilizing Docker, Nodejs - Express, React and RabbitMQ

Zegal FullStack Test

This is a coding test. I decided to use Docker for this one given the many applications involved and wanting to avoid setup issues.

Installation

Note that you need to wait for each service to start up before starting the next one.

1. Clone the repo.
2. cd into repo.
3. run docker-compose up queue
4. run docker-compose up consumer
5. run docker-compose up frontend
6. run docker-compose up producer
7. Head to localhost:8080 and, optionally, open up the console log to see all received messages

Services

Here's a list of services involved:

Service	Description	Available at
Frontend	React frontend to display messages	localhost:8080
Producer	NodeJS service that produces 20 messages per second and puts them on RabbitMQ	localhost:3000
RabbitMQ	Queue that receives messages	localhost:15672
Consumer	NodeJS service that consumes messages from RabbitMQ and sends them to Frontend service via websockets.	localhost:3001

Architecture

Unidirectional data flow architecture:

graph LR
A[Producer] -- RabbitMQ --> B((Consumer))
B --> D{Frontend}

TODOS

1. Utilize functional components and hooks in the frontend
2. Trigger producer start and stop from frontend
3. Add tests for services