IoT Services |

The main information

The repository

The repository includes five modules:

• Common - the implementation of DAL models and utils;
• Device - the implementation to run on a RaspberryPi device, requires a MQTT Broker for communication with a server;
• Server - the implementation to run on an available host, requires a MQTT Broker for communication with devices and a MongoDB to store data;
• Broker - the docker-compose configuration with default settings for a MQTT Broker instance running;
• Database - the docker configuration for MongoDB and Mongo Express instances running.

The environment/requirements

• node.js - v10.14.1
• npm - 6.4.1
• Docker Engine - 18.09.0
• Docker Compose - 1.23.2

Useful commands

Some useful commands are described in this block.

MQTT Broker

How to run a MQTT Broker instance?

Change directory to relocate into Broker folder:

user@host:Group3_IoT_Services$ cd Broker

Build container if it's needed:

user@host:Broker$ docker-compose build

Up container (without output):

user@host:Broker$ docker-compose up -d

Down container:

user@host:Broker$ docker-compose down

MongoDB

1. How to run a MongoDB instance without Mongo Express?

Change directory to relocate into Database folder:

user@host:Group3_IoT_Services$ cd Database

Build container if it's needed:

user@host:Database$ docker-compose build

Up container (without output):

user@host:Database$ docker-compose up -d mongodb

Down container:

user@host:Database$ docker-compose down

2. How to run a MongoDB instance with Mongo Express?

Change directory to relocate into Database folder:

user@host:Group3_IoT_Services$ cd Database

Build container if it's needed:

user@host:Database$ docker-compose build

Up containers (without output):

user@host:Database$ docker-compose up -d

Down container:

user@host:Database$ docker-compose down

3. How to run Mongo Shell?

When step 1 or 2 is performed, you can run a special shell for MongoDB:

user@host:Database$ docker exec -t -i mongodb mongo

4. How to run Mongo Express?

When step 2 is performed, you can open link via browser to watch and configure DB data:

http://localhost:8081

NodeJS

1. How to install/unistall/reinstall all modules?

Install all JS modules via npm (it's worth using in the first time):

user@host:Group3_IoT_Services$ npm run install-all

Remove all dependencies and lock-files in all JS modules:

user@host:Group3_IoT_Services$ npm run uninstall-all

Install JS modules after removing of old dependencies:

user@host:Group3_IoT_Services$ npm run reinstall-all

2. How to run unit tests?

Run unit tests in all JS modules:

user@host:Group3_IoT_Services$ npm test

3. How to run lint?

Run lint for JavaScript files in all JS modules:

user@host:Group3_IoT_Services$ npm run lint

4. How to run Server application?

Before running of Server application MQTT Broker and MongoDB are needed to start (see MQTT Broker and see MongoDB).

Run Server application:

user@host:Group3_IoT_Services$ cd Server
user@host:Server$ node index.js

After that, you can open link via browser to watch result:

http://localhost:11296

5. How to run Device application?

Before running of Device application MQTT Broker is needed to start (see MQTT Broker).

Run Device application:

user@host:Group3_IoT_Services$ cd Device
user@host:Device$ node index.js

After that, you can open link via browser to watch result:

http://localhost:11297

Contributors

Thanks a lot boykosha and dkravtsova for your help to develop this project.