Smart Thermometer Server Application

API Docs

Default port: 9000

Location	Description	Request JSON data	Response
/query	Get card's seat number and name	uid: Card UID key: Preshared key	num: Corresponding Seat number name:Corresponding name
/register	Register a card to the database	uid: Card UID num: Seat number name: Name key: Preshared key	200 (OK) if success
/place	Submit a temperature info to Google Sheets	num: Seat number temp: Body Temperature key: Preshared key	202 (Accepted) if the request is accepted

Setup

• Enable your Google Sheets API and download the credentials.json to the working directory
• Generate SSL keys using

$ openssl genrsa -out server.key 2048
$ openssl req -new -x509 -key server.key -out server.crt -days 365

• Copy the example sheet to your account and edit it for your needs
• Rename config.example.json to config.json and edit it:
  • Key: Pre-shared key. Requests to the server must contain the same key
  • SheetsID: ID of the spreadsheet
  • TimeZone: Specific time zone with IANA timezone database format
  • Noon: Hours (1~24) after this value will be considered afternoon

Dependencies

• google.golang.org/api/sheets/v4
• golang.org/x/oauth2/google
• github.com/mattn/go-sqlite3

Use $ go mod download to install them

Build

$ go build

Run

Just run

$ ./smart-therometer

Systemd service

# /etc/systemd/system/smart-thermometer.service

[Unit]
Description=Smart Thermometer

[Service]
WorkingDirectory=/home/yi/SmartThermometer-Server
ExecStart=/home/yi/SmartThermometer-Server/smart-thermometer

[Install]
WantedBy=multi-user.target

And then

$ sudo systemd enable --now smart-thermometer

to start and run on boot