firestore.go

package main

import (
  "./sensors"
  "log"
  "time"
  "context"
  firebase "firebase.google.com/go"
  "google.golang.org/api/option"
)

type RoomData struct {
  temperature float64
  pressure float64
  humidity float64
  light float64
}

func recordData (roomData *RoomData) {
  ctx := context.Background()
  opt := option.WithCredentialsFile("<YOUR-SERVICE-ACCOUNT-KEY.json>")
  app, err := firebase.NewApp(ctx, nil, opt)
  client, err := app.Firestore(ctx)
  if err != nil {
    log.Fatal(err)
  }
  collection := client.Collection("conditions")

  _, _, err = collection.Add(ctx, map[string]interface{}{
    "createdAt": time.Now(),
    "humidity":  roomData.humidity,
    "light":  roomData.light,
    "pressure": roomData.pressure,
    "temperature": roomData.temperature,
  })
  if err != nil {
    log.Fatalf("Failed adding alovelace: %v", err)
  }
}

func main () {
  log.Println("Start capturing my room confitions")

  temperature1, humidity, _ := sensors.GetTempAndHumid()
  log.Printf("Temperature:  %f C\n", temperature1)
  log.Printf("Humidity:     %f %%rh\n", humidity)

  light, _ := sensors.GetLight()
  log.Printf("Light:        %f Lux\n", light)

  temperature2, pressure, _ := sensors.GetTempAndPressure()
  log.Printf("Temperature:  %f C\n", temperature2)
  log.Printf("Pressure:     %f %%rh\n", pressure)

  data := RoomData{
    temperature: temperature1,
    pressure: pressure,
    humidity: humidity,
    light: light,
  }

  recordData(&data)
  log.Println("Finished recording data!")
}