Created
February 13, 2017 21:54
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""" | |
### Example HTTP operator and sensor | |
""" | |
from airflow import DAG | |
from airflow.operators.http_operator import SimpleHttpOperator | |
from airflow.operators.sensors import HttpSensor | |
from datetime import datetime, timedelta | |
import json | |
seven_days_ago = datetime.combine(datetime.today() - timedelta(7), | |
datetime.min.time()) | |
default_args = { | |
'owner': 'airflow', | |
'depends_on_past': False, | |
'start_date': seven_days_ago, | |
'email': ['[email protected]'], | |
'email_on_failure': False, | |
'email_on_retry': False, | |
'retries': 1, | |
'retry_delay': timedelta(minutes=5), | |
} | |
dag = DAG('example_http_operator_sid_v2', default_args=default_args) | |
dag.doc_md = __doc__ | |
# t1, t2 and t3 are examples of tasks created by instantiating operators | |
t1 = SimpleHttpOperator( | |
task_id='post_op', | |
endpoint='api/v1.0/nodes', | |
data=json.dumps({"priority": 5}), | |
headers={"Content-Type": "application/json"}, | |
response_check=lambda response: True if len(response.json()) == 0 else False, | |
dag=dag) | |
t5 = SimpleHttpOperator( | |
task_id='post_op_formenc', | |
endpoint='nodes/url', | |
data="name=Joe", | |
headers={"Content-Type": "application/x-www-form-urlencoded"}, | |
dag=dag) | |
t2 = SimpleHttpOperator( | |
task_id='get_op', | |
method='GET', | |
endpoint='api/v1.0/nodes', | |
data={"param1": "value1", "param2": "value2"}, | |
headers={}, | |
dag=dag) | |
t3 = SimpleHttpOperator( | |
task_id='put_op', | |
method='PUT', | |
endpoint='api/v1.0/nodes', | |
data=json.dumps({"priority": 5}), | |
headers={"Content-Type": "application/json"}, | |
dag=dag) | |
t4 = SimpleHttpOperator( | |
task_id='del_op', | |
method='DELETE', | |
endpoint='api/v1.0/nodes', | |
data="some=data", | |
headers={"Content-Type": "application/x-www-form-urlencoded"}, | |
dag=dag) | |
sensor = HttpSensor( | |
task_id='http_sensor_check', | |
http_conn_id='http_default', | |
endpoint='', | |
params={}, | |
response_check=lambda response: b"Google" in response.content, | |
poke_interval=5, | |
dag=dag) | |
t1.set_upstream(sensor) | |
t2.set_upstream(t1) | |
t3.set_upstream(t2) | |
t4.set_upstream(t3) | |
t5.set_upstream(t4) |
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