Lab 5: Crossbar.io and Paho

After 2 weeks of attempting this lab I do not think I can complete it with my Pi on campus and using ngrok to access it. As such I have decided to use Ubuntu to complete it. I followed this guide to get docker set up on my device .

Crossbar.io

First, clone the crossbario GitHub repository and move into the getting-started folder

$ git clone https://github.com/crossbario/crossbar-examples

$ cd crossbar-examples/getting-started

Then pull the crossbario Docker image and run the docker image. This will also start the crossbar webservice on port 8080

$ docker pull crossbario/crossbar

$ sudo docker run -v $PWD:/node -u 0 --rm --name=crossbar -it -p 8080:8080 crossbario/crossbar

On a separate terminal run the crossbar publish client. Install autobahn and run client_component_publish.py.

$ pip install autobahn

$ cd crossbar-examples/getting-started/1.hello-world/

$ python3 client_component_publish.py

Finally, run the subscriber in another separate terminal (third terminal)

$ cd crossbar-examples/getting-started/1.hello-world/

$ python3 client_component_subscriber.py

Install paho

$ pip install paho-mqtt

$ cd iot/lesson5/

$ python3 client.py 

Run this command in the first terminal

$ python3 sub.py

Then run this command in the second terminal

$ python3 pub.py

Repeat with sub-multiple and pub-multiple