What is this service?

This is a distributed messaging server built in Golang (server), Redis (caching and channels) and MySQL (database). Two more devices can enter the same or disparate servers for real time chat communication through websockets.

Architecture

• user sends message to server over websocket
• server
  • saves message to database
  • broadcasts the event to the chat room channel
• all servers subscribed to the chat room channel receive the message
• if the other users in the chat room are connected to the receiving server, the message is broadcast to their web sockets

To run the service

make run-api

Enter the container

make enter

Testing

Run integration tests

make run-api-integration

And in another window run

make int-test

Run unit tests

make test

Mocks

To generate mocks for all interfaces, go to messaging-service and run mockery --all --keeptree

Assets

Automated emails

assets should be queried from root directory as the starting point.

	wd, err := os.Getwd()
	if err != nil {
		return err
	}
  t, err := template.ParseFiles(wd + "/assets/templates/template.html")

Database

Setup mysql and redis

make setup-dbs

connect to locally running dockerized mysql

mysql -h 127.0.0.1 -P 3310 -u root -p