gluxix / ws-interview-task

The websockets interview task

Server

npm run start:server

You can configure the server via environment variables:

# WS server port
PORT=8080
# Heartbeat interval in ms
HB_INT=1000

PORT=9090 HB_INT=2000 npm run start:server

Client

npm run start:client

The client app interacts with user via stdin, available commands:

• s - sends subscribe
• u - sends unsubscribe
• c - sends countSubscribers

Both, server and client writes logs to stdout. To silence heartbeat messages in the client app, you can pass SILENCE_HB=true env.

SERVER_ADDRESS='ws://127.0.0.1:8080'
SILENCE_HB='true'

SERVER_ADDRESS='ws://127.0.0.1:8080' SILENCE_HB='true' npm run start:client

Testing

npm run test:unit
npm run test:integration