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    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
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    under the License.


AWS Step Functions Operators
============================

`AWS Step Functions <https://aws.amazon.com/step-functions/>`__ makes it easy to coordinate the components
of distributed applications as a series of steps in a visual workflow. You can quickly build and run state
machines to execute the steps of your application in a reliable and scalable fashion.

Prerequisite Tasks
------------------

.. include:: _partials/prerequisite_tasks.rst

.. _howto/operator:StepFunctionStartExecutionOperator:

AWS Step Functions Start Execution Operator
"""""""""""""""""""""""""""""""""""""""""""

To start a new AWS Step Functions State Machine execution
use :class:`~airflow.providers.amazon.aws.operators.step_function.StepFunctionStartExecutionOperator`.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_step_functions.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_step_function_start_execution]
    :end-before: [END howto_operator_step_function_start_execution]

.. _howto/operator:StepFunctionExecutionSensor:

AWS Step Functions Execution Sensor
"""""""""""""""""""""""""""""""""""

To wait on the state of an AWS Step Function State Machine execution until it reaches a terminal state you can
use :class:`~airflow.providers.amazon.aws.sensors.step_function.StepFunctionExecutionSensor`.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_step_functions.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_step_function_execution_sensor]
    :end-before: [END howto_operator_step_function_execution_sensor]

.. _howto/operator:StepFunctionGetExecutionOutputOperator:

AWS Step Functions Get Execution Output Operator
""""""""""""""""""""""""""""""""""""""""""""""""

To fetch the output from an AWS Step Function State Machine execution you can
use :class:`~airflow.providers.amazon.aws.operators.step_function.StepFunctionGetExecutionOutputOperator`.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_step_functions.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_step_function_get_execution_output]
    :end-before: [END howto_operator_step_function_get_execution_output]

References
----------

For further information, look at:

* `Boto3 Library Documentation for Step Functions <https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/stepfunctions.html>`__