Send Adafruit IO data using curl

adafruit.io

#!/bin/bash

# Usage: AIO_KEY=key_hash FEED_KEY=name_of_feed VALUE=an_integer send_io.sh
# Specify any or none of the environment variables

aio_key="${AIO_KEY:-feedfacedeadbeef}" # default: replace everything after the -
feed_key="${FEED_KEY:-myfeedname}" # default: replace everything after the -
value="$(sed 's/"/\\"/g' <<<"${VALUE:-$(( ( RANDOM % 25 )  + 1 ))}")" # default: random int between 0 and 25

curl -H "X-AIO-Key: $aio_key" \
     -H "Content-Type: application/json" \
     -X POST https://io.adafruit.com/api/feeds/$feed_key/data.json \
     -d"{\"value\": \"$value\"}"