#!/bin/bash

urldecode() {
	local data="${1//+/ }"
	printf '%b' "${data//%/\\x}"
}

declare -A QUERY

IFS='&' read -ra pairs <<< "$FAAS_QUERY"

for pair in "${pairs[@]}"; do
	IFS='=' read -r raw_key raw_value <<< "$pair"
	key=$(urldecode "$raw_key")
	value=$(urldecode "$raw_value")
	QUERY["$key"]="$value"
done

echo "a = ${QUERY[a]}"
echo "b = ${QUERY[b]}"
#echo $(ls)