Initial commit

Demo/stackit-01-taskflow.py

@@ -0,0 +1,40 @@
+import json
+import pendulum
+from airflow.sdk import dag, task
+
+
+@dag(
+    schedule=None,
+    start_date=pendulum.datetime(2021, 1, 1, tz="UTC"),
+    catchup=False,
+    tags=["demo","stackit-demo"],
+    dag_id="stackit_01_taskflow",
+)
+def taskflow_api():
+    @task()
+    def extract():
+        data_string = '{"1001": 301.38, "1002": 433.21, "1003": 502.22}'
+
+        order_data_dict = json.loads(data_string)
+        return order_data_dict
+
+    @task(multiple_outputs=True)
+    def transform(order_data_dict: dict):
+        total_order_value = 0
+
+        for value in order_data_dict.values():
+            total_order_value += value
+
+        return {"total_order_value": total_order_value}
+
+    @task()
+    def load(total_order_value: float):
+
+        print(f"Total order value is: {total_order_value:.2f}")
+
+    order_data = extract()
+    order_summary = transform(order_data)
+    load(order_summary["total_order_value"])
+
+
+taskflow_api()