Intro

I made this after Mozilla Gateway stopped working for me, so it has some similarities with that, but not really.

How it works

This program does all its communication with things through an MQTT broker. It listens to the iot/hello topic where things can announce themselves with their name, props, etc. and initiate further communication. This happens through two topics per thing, iot/[uid]/send and iot/[uid]/recv.

The program then stores data like the state of different props and user data on a mongodb server and provides a REST API and progressive web app as a user interface

Deploying

Configuration

The MQTT and MongoDB server urls are currently hardcoded and probably won’t work in any new environment.

Some configuration can be made by adding a .env file to the server/ folder:

MQTT_USERNAME	The username for the MQTT broker
MQTT_PASSWORD	The password for the MQTT broker
SECRET	The secret used to encrypt the tokens (32-bit hex recommended)
ENV	development or production

Building WebApp

To build the react app, run

cd webapp
npm run build
cp -r build ../server/

Dockerizing

This will build a docker container and publish it to my local docker registry.

Be sure to increase the version number before executing the command.

cd server
docker build --no-cache -t 192.168.1.101:5000/iot-hub:[version] .
docker push 192.168.1.101:5000/iot-hub