Snippet of code to format a plain JSON encoded object into env var file format (KEY=value) using jq

json_to_env_var_format.sh

#!/bin/sh

# Formats something like
#
# '{"MODE":"dev","HOST":"db"}'
#
# to
#
# MODE=dev
# HOST=db
#
# Using printf and the quotes around the variable are important to preserve spaces and \n chars in the values

printf '%s\n' "$JSON" | jq -j "to_entries|map(\"\(.key)=\(.value|tostring)\n\")|.[]"