Shell script to move data from one Firebase realtime database to another (helpful for live->test migrations)

migrateFirebaseData.sh

#! /bin/bash

live_database="LIVE_DATABASE_NAME"
test_database="TEST_DATABASE_NAME"

read -p "This is a destructive operation on the test Firebase database ($test_database). Are you sure you want to continue? (y/N) " -n 1 -r
echo

if [[ $REPLY =~ ^[Yy]$ ]]
then
  nodes=( "NODE_1" "NODE_2" )

	for node in "${nodes[@]}"
	do
		echo "Try to populate /$node..."
		# tee is used because some nodes failed to set with bad JSON errors
		firebase database:get /$node --instance $live_database | tee | firebase database:set /$node --instance $test_database --confirm

		if [ $? -eq 0 ]; then
			echo "Populating /$node succeeded."
		else
			echo "Looks like getting $node failed. Attempting to save the JSON to $node.json for manual importing."
		    firebase database:get /$node --instance $live_database > $node.json
		fi

		echo
	done
fi