Run command based on National Weather Service API from weather.gov

nws-command.sh

#!/bin/bash

# The command to run. Use operation=$1 to pass it in as a parameter.
OPERATION='kasa --type plug --alias "basement-fan" on'

# Threshold for maximum humidity
th=65
# Threshold for minimum temperature
tt=60

# Get your Hourly forecast URL from weather.gov:
# 1. get your lat/long from google maps: right click on the map where you want the coordinates
# 2. Paste it on to the points URL: https://api.weather.gov/points/<latitude>,<longitude>
# e.g.: curl https://api.weather.gov/points/43,-78.78
# 3. Get your hourly forecast URL and it set it below:
HOURLY_FORECAST_URL=https://api.weather.gov/gridpoints/BUF/38,53/forecast/hourly

# Write the response to the tmp directory
filename="/tmp/nws-$(date +%N).json"
curl -s $HOURLY_FORECAST_URL > $filename

# Read the humidity value
rh=$(cat $filename | jq -r '.properties.periods[0].relativeHumidity.value')
# Read the temperature value
temp=$(cat $filename | jq -r '.properties.periods[0].temperature')

echo "INFO: $(date) - Relative humidity: ${rh}, Temp: ${temp}, Operation: ${OPERATION}"

# Delete the file
rm $filename

# run the command if the temperature is higher than 60 and humidity is lower than 65
if [[ $temp -gt "60" ]] && [[ $rh -lt "65" ]]; then
  echo "INFO: Running command"
  eval ${OPERATION}
else
  echo "INFO: Skipping command"
fi