text: # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.
  from datetime import datetime
  from os import getenv
  
  from airflow import DAG
  from airflow.decorators import task
  from airflow.models.baseoperator import chain
  from airflow.providers.amazon.aws.hooks.sqs import SqsHook
  from airflow.providers.amazon.aws.operators.sqs import SqsPublishOperator
  from airflow.providers.amazon.aws.sensors.sqs import SqsSensor
  
  QUEUE_NAME = getenv('QUEUE_NAME', 'Airflow-Example-Queue')
  
  
  @task(task_id="create_queue")
  def create_queue_fn():
      """Create the example queue"""
      hook = SqsHook()
      result = hook.create_queue(queue_name=QUEUE_NAME)
      return result['QueueUrl']
  
  
  @task(task_id="delete_queue")
  def delete_queue_fn(queue_url):
      """Delete the example queue"""
      hook = SqsHook()
      hook.get_conn().delete_queue(QueueUrl=queue_url)
  
  
  with DAG(
      dag_id='example_sqs',
      schedule_interval=None,
      start_date=datetime(2021, 1, 1),
      tags=['example'],
      catchup=False,
  ) as dag:
  
      create_queue = create_queue_fn()
  
      # [START howto_sqs_operator]
      publish_to_queue = SqsPublishOperator(
          task_id='publish_to_queue',
          sqs_queue=create_queue,
          message_content="{{ task_instance }}-{{ execution_date }}",
      )
      # [END howto_sqs_operator]
  
      # [START howto_sqs_sensor]
      read_from_queue = SqsSensor(
          task_id='read_from_queue',
          sqs_queue=create_queue,
      )
      # [END howto_sqs_sensor]
  
      delete_queue = delete_queue_fn(create_queue)
  
      chain(create_queue, publish_to_queue, read_from_queue, delete_queue)
  