Delete Cognito Users

delete-cognito-users.sh

#!/bin/zsh
# delete-cognito-users.sh
# deletes all cognito users with emails starting with 'coltenkrauter'
# assumes a single user pool exists

logInfo() {
	echo "[INFO] $1"
}

logError() {
	echo "[ERROR] $1"
}

logInfo 'retrieving user pool id...'
userPoolId=$(aws cognito-idp list-user-pools --max-results 60 | jq -r '.UserPools[0].Id')

if [[ -z "$userPoolId" ]]; then
	logError 'no user pool found'
else
	logInfo "using user pool: $userPoolId"
	logInfo "retrieving users with email starting with 'coltenkrauter'..."
	users=$(aws cognito-idp list-users --user-pool-id "$userPoolId" \
		--filter 'email ^= "coltenkrauter"' | jq -r '.Users[].Username')

	if [[ -z "$users" ]]; then
		logInfo 'no matching users found'
	else
		echo "$users" | while IFS= read -r user; do
			if [[ -n "$user" ]]; then
				logInfo "deleting user: $user"
				aws cognito-idp admin-delete-user --user-pool-id "$userPoolId" --username "$user"
				if [[ $? -eq 0 ]]; then
					logInfo "deleted user: $user"
				else
					logError "failed to delete user: $user"
				fi
			fi
		done
	fi
fi

logInfo "script completed"