List cloudformation outputs of Serverless Framework deployment

.zshrc

sls_stack () {
  if [ -z "$1" ];
    then
      output=$(sls info | grep -oP 'stack: \K.*$')
    else
      output=$(sls info -s $1 | grep -oP 'stack: \K.*$')
  fi
  if [ ! -z "$output" ];
    then
      echo $output
      return 0
    else
      >&2 echo "ERROR: Could not find stack for stage=$1. Are you in an SLS repo? Does that stage exist?"
      return 1
  fi
}

sls_output () {
  stack=$(sls_stack $1)
  if [ $? -ne 0 ]; then
    return $?
  fi
  echo stack: $stack
  output=$(aws cloudformation describe-stacks --stack-name $stack --query 'Stacks[0].Outputs[]')
  echo $output
}

alias sls-stack="sls_stack"
alias sls-output="sls_output"

Call from the terminal using:
$ sls-output dev
$ sls-output staging
$ sls-output