Make a config in github for send params when issue is closed

Hi I need setup github, to call a link with params when issues is closed in webhook $MESSAGE = "..." $ISSUE = "..." curl -d '{"color":"green","message":"$MESSAGE $ISSUE","notify":false,"message_format":"text"}' -H 'Content-Type: application/json' [login to view URL]\?auth_token\=iuiuiuiuuuuuuuuuuuuuuuuuu