fix: HttpSensorTrigger to include method when serializing (#42925)

providers/src/airflow/providers/http/triggers/http.py

@@ -167,6 +167,7 @@ def serialize(self) -> tuple[str, dict[str, Any]]:
             {
                 "endpoint": self.endpoint,
                 "data": self.data,
+                "method": self.method,
                 "headers": self.headers,
                 "extra_options": self.extra_options,
                 "http_conn_id": self.http_conn_id,

providers/tests/http/triggers/test_http.py

@@ -30,7 +30,7 @@
 from requests.structures import CaseInsensitiveDict
 from yarl import URL
 
-from airflow.providers.http.triggers.http import HttpTrigger
+from airflow.providers.http.triggers.http import HttpSensorTrigger, HttpTrigger
 from airflow.triggers.base import TriggerEvent
 
 HTTP_PATH = "airflow.providers.http.triggers.http.{}"
@@ -56,6 +56,18 @@ def trigger():
     )
 
 
+@pytest.fixture
+def sensor_trigger():
+    return HttpSensorTrigger(
+        http_conn_id=TEST_CONN_ID,
+        endpoint=TEST_ENDPOINT,
+        method=TEST_METHOD,
+        headers=TEST_HEADERS,
+        data=TEST_DATA,
+        extra_options=TEST_EXTRA_OPTIONS,
+    )
+
+
 @pytest.fixture
 def client_response():
     client_response = mock.AsyncMock(ClientResponse)
@@ -153,3 +165,22 @@ async def test_trigger_on_post_with_data(self, mock_http_post, trigger):
         assert kwargs["data"] == TEST_DATA
         assert kwargs["json"] is None
         assert kwargs["params"] is None
+
+
+class TestHttpSensorTrigger:
+    def test_serialization(self, sensor_trigger):
+        """
+        Asserts that the HttpSensorTrigger correctly serializes its arguments
+        and classpath.
+        """
+        classpath, kwargs = sensor_trigger.serialize()
+        assert classpath == "airflow.providers.http.triggers.http.HttpSensorTrigger"
+        assert kwargs == {
+            "http_conn_id": TEST_CONN_ID,
+            "endpoint": TEST_ENDPOINT,
+            "method": TEST_METHOD,
+            "headers": TEST_HEADERS,
+            "data": TEST_DATA,
+            "extra_options": TEST_EXTRA_OPTIONS,
+            "poke_interval": 5.0,
+        }