This is my spare time "how-to-use xx?" project. To get used to tornado5 with async background job.

• pip install tornado > 5.0
• pip install pyzmq

• wsserver.py -- Web Application. Simple websocket (tornado ioloop)
• rate.py -- Background Application. generate dummy FX rate per second. Using pyzmq pub/sub.
• getrate.py -- ZMQ subscriber sample (pure asyncio)

• run wsserver.py
• run rate.py
• open browser http://localhost:8080