websockets

We're going to test some websocket functionality. Testing out commit and push

The echo-server and echo-client work together to mimic an actual server and a client, you will need two terminal windows open, one for the client and one for the server.

Run ./echo-server.py and sudo python ./echo-client.py to get messages passed between them. Prints 'Hello World' on the client server.

Working with virtual environments.

Often it's a good idea to use a python virtual environment to develop in. To set one up issue the following commands.

• python3 -m venv venv
• source venv/bin/activate You should now see the following in your terminal: (venv) username@your-computer-name-here:~/path/to/your/project$ Now you can run the following to install all dependencies: pip install -r requirements.txt. Using pipenv instead

Blackhole && Kazoo subscription

kazoo_put.py Use RESTful API Getting the auth_token from crossbar by providing a MD5 hash of the username/password Using the auth_token to create accounts, get subscribe to crossbar - access endpoints

kazoo_websocket.py The code can now talk to crossbar successfully. Blackhole, the backend implementation of websockets in kazoo is listening on port 5555 Can now subscribe to events from crossbar and can print the notifications