A script to update https://twitter.com/nysvaccine

vaccine-check-all.sh

#!/bin/bash

# Checks for updates to https://am-i-eligible.covid19vaccine.health.ny.gov/
# If a change is found, it emails a list of addresses and tweets about the update.
#
# Adapted from: https://gist.github.com/dphiffer/678a5e06330f6f33dfc4ed9d0bfe9edb
# Twitter bot: https://twitter.com/nysvaccine
# Edit/print this flyer: https://twitter.com/nysvaccine
#
# This version expects `t` to be installed (gem install t), which adds Ruby as a
# dependency. You also have to setup Twitter app stuff, which is a whole ordeal.
# Otherwise the same dependencies apply from the script this was adapted from;
# you'll need curl, jq, and for email sending to work.
#
# Edit this to email a list of people about the updates
email_to_list="[email 1] [email 2]"
email_from="[email]"

set -o errexit
set -o pipefail
set -o nounset

url="https://am-i-eligible.covid19vaccine.health.ny.gov/"
endpoint="https://am-i-eligible.covid19vaccine.health.ny.gov/api/list-providers"
dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Check the endpoint
result=`curl -s "$endpoint"`

# Grab a list of locations
locations=$(echo "$result" | jq -r ".providerList[] | .providerName")

while IFS= read -r location; do

	# Check whether appointments are available ("AA")
	available=`echo "$result" | jq -r ".providerList[] | select(.providerName == \"$location\") | .availableAppointments"`

	# Normalize the location name
	provider_name=`echo "$result" | jq -r ".providerList[] | select(.providerName == \"$location\") | .providerName" | xargs | sed -e 's/*//g'`

	if [ "$available" == "AA" ] ; then
		message="✨ Vaccine appointments are available at $provider_name $url"
	elif [ "$available" == "NAC" ] ; then
		message="❌ No vaccine appointments are available at $provider_name."
	else
		echo "Could not determine availability for $location: $available"
		exit 1
	fi

	# Create a results directory
	if [ ! -d "$dir/results" ] ; then
		mkdir "$dir/results"
	fi
	result_file="$dir/results/$provider_name.txt"

	if [ ! -f "$result_file" ] || [ $(cat "$result_file") != "$available" ] ; then
	    /usr/local/bin/t update "$message"
	    for email_to in $email_to_list ; do
		echo "$message" | mail -a "From:$email_from" \
				       -s "Vaccine appointments at $location" \
				       "$email_to"
	    done
	fi

	if [ "$provider_name" != "" ] ; then
		echo "$available" > "$result_file"
	fi

done <<< "$locations"