# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0

# Purpose:
# sns-ruby-example-create-topic.rb demonstrates how to create an Amazon Simple Notification Service (SNS) topic using
# the AWS SDK for Ruby.

# Inputs:
# - REGION
# - TOPIC_NAME

# snippet-start:[sns.Ruby.createTopic]

require "aws-sdk-sns"  # v2: require 'aws-sdk'

def topic_created?(sns_client, topic_name)

  sns_client.create_topic(name: topic_name)
  rescue StandardError => e
    puts "Error while creating the topic named '#{topic_name}': #{e.message}"
end

# Full example call:
def run_me
  topic_name = "TOPIC_NAME"
  region = "REGION"

  sns_client = Aws::SNS::Client.new(region: region)

  puts "Creating the topic '#{topic_name}'..."

  if topic_created?(sns_client, topic_name)
    puts "The topic was created."
  else
    puts "The topic was not created. Stopping program."
    exit 1
  end
end

run_me if $PROGRAM_NAME == __FILE__
# snippet-end:[sns.Ruby.createTopic]