https://github.com/ttu/dummy-sensor-server

REST API and Socket.io server that generates random data in sensor-like format
https://github.com/ttu/dummy-sensor-server

express nodejs socket-io

Last synced: 12 days ago
JSON representation

REST API and Socket.io server that generates random data in sensor-like format

• Host: GitHub
• URL: https://github.com/ttu/dummy-sensor-server
• Owner: ttu
• Created: 2016-06-19T14:51:19.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2023-05-09T04:12:02.000Z (almost 2 years ago)
• Last Synced: 2024-12-09T09:33:20.805Z (2 months ago)
• Topics: express, nodejs, socket-io
• Language: JavaScript
• Homepage: http://dummy-sensors.azurewebsites.net/
• Size: 59.6 KB
• Stars: 1
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Dummy Sensor Server

Provides random sensor-like data

* server

  * Express REST API & Socket.io server

* sensors

  * BL, starts new background process and keeps track of active sensors

* sensorProcess

  * Background process which updates sensor's data periodically

* sensorModel

  * Model for sensor

* weather

  * Get weather data periodically from Darksky API

## Installation

```sh

asdf install

npm install

npm run dev

```

```sh

# fetch sensors

curl localhost:3000/api/sensor

# fetch single sensor data

curl localhost:3000/api/sensor/abba5

```

### REST API

```

GET /api/sensor

>

["acdc1","abba5","iddqd","idkfa"]

GET /api/sensor/abba5

>

{ 

    'id': 'abba5',

    'data': 24.940641212025657,

    'timestamp': 1466322901825

}

GET /api/weather

>

{ 

    'latitude': 60.192059,

    'longitude': 24.945831,    

    'time': 1479744195,

    'temperature': 7.12,

    'units': 'si'

}

```

### Socket.io

Listen for events

* listen (expected payload: sensorId)

  * replies with sensorId if sensor is found

* stop (expected payload: sensorId)

  * replies with sensorId if sensor is fond

When sensor has updated data emit message with sensor's id 

## Sample client

* Listen selected sensor's data with socket.io

* Buffer data with RxJS and reduce buffer to single item

* Visualize to C3-chart

## Depolyment

Deploy to fly.io.

  1. Install [flyctl](https://fly.io/docs/hands-on/install-flyctl/)

  1. Deploy app

  ```sh

  fly launch

  ```