DavudSafarli / golang-test-task

Project

There are 3 services defined in docker-compose file next to rabbitmq and kafka:

• api: http server running on 8080
• reporting: http server running on 3000
• processor: MessageProcessor that consumes messages from rabbitmq and writes to redis

How to run

docker-compose up -d

Send a message to api service

curl -XPOST localhost:8080/message -d '{"message": "msg1", "sender": "davud", "receiver": "gamelight"}' curl -XPOST localhost:8080/message -d '{"message": "msg2", "sender": "davud", "receiver": "gamelight"}'

Read the messages from Reporting service in chronological descending order

curl -XGET localhost:3000/message/list?sender=davud&receiver=gamelight or follow localhost:3000/message/list?sender=davud&receiver=gamelight

you'll get a response similar:

[
    {
        "message": "msg2",
        "sender": "davud",
        "receiver": "gamelight",
        "sent_at": "2023-08-20T10:40:20.965199051Z"
    },
    {
        "message": "msg1",
        "sender": "davud",
        "receiver": "gamelight",
        "sent_at": "2023-08-20T10:40:18.564155651Z"
    }
]

Some decisions:

• RabbitMQ I couldn't connect to rabbitmq:3.7-management with amqp://user:password@rabbitmq:5672. As soon as i noticed it didn't work, I followed some articles and changed it to rabbitmq-3 and removed the custom username and password to make it easy to connect with guest:guest@... and to not lose time debugging rabbitmq.

• Env variables: all connection strings are defined in the code with plain text because of time constraint

• http data binding I used domain models to bind the request data for both POST /message and GET /message/list routes to save time.