1. Outline

Our service 'Chatty' is a lightweight and simplified web messenger chat service. It mimics the overall functionality of Slack and Discord.

2. Technology stack

• springboot
• rabbitMQ (message broker)
• mysql (main db)
• mongodb (for storing chatting message)

3. run locally

1. installation

1-1. basically, please set up the Java environment to run a Spring Boot project.

1-2. install RabbitMQ, MongoDB, and MySQL locally.

1-3. Create a .env file in the root directory to define the required variables for connecting with the application. Refer to src/main/java/resources/application-local.yml to check what you have to define in .env.

2. run

execute the main method in src\main\java\com\messenger\chatty\ChattyApplication.java

4. deploy

This project is not intended for actual service operation, but assumes a service environment and has configured a deployment infrastructure. We also automated CI/CD using GitHub workflows.

• Docker-based automation.
• ELB for load balancing.
• Application server deployed on EC2.
• MySQL DB deployed on RDS.
• RabbitMQ and MongoDB deployed on CloudAMQP and MongoDB Atlas Cloud, respectively (not using AWS services due to server cost issues).
• All the infrastructure setup for the 'Chatty' project can be seen in the image below.