Add host field to Post an event V2 API

.generator/schemas/v2/openapi.yaml

@@ -20219,6 +20219,13 @@ components:
           $ref: '#/components/schemas/EventPayloadAttributes'
         category:
           $ref: '#/components/schemas/EventCategory'
+        host:
+          description: Host name to associate with the event. Any tags associated
+            with the host are also applied to this event. Limited to 255 characters.
+          example: hostname
+          maxLength: 255
+          minLength: 1
+          type: string
         integration_id:
           $ref: '#/components/schemas/EventPayloadIntegrationId'
         message:
@@ -67608,6 +67615,7 @@ paths:
                           rule:
                             datacenter: devcycle.us1.prod
                       category: change
+                      host: hostname
                       integration_id: custom-events
                       message: payment_processed feature flag has been enabled
                       tags:

examples/v2/events/CreateEvent.py

@@ -63,6 +63,7 @@
             ),
             category=EventCategory.CHANGE,
             integration_id=EventPayloadIntegrationId.CUSTOM_EVENTS,
+            host="test-host",
             message="payment_processed feature flag has been enabled",
             tags=[
                 "env:api_client_test",

src/datadog_api_client/v2/model/event_payload.py

@@ -27,6 +27,10 @@ class EventPayload(ModelNormal):
             "max_length": 100,
             "min_length": 1,
         },
+        "host": {
+            "max_length": 255,
+            "min_length": 1,
+        },
         "message": {
             "max_length": 4000,
             "min_length": 1,
@@ -55,6 +59,7 @@ def openapi_types(_):
             "aggregation_key": (str,),
             "attributes": (EventPayloadAttributes,),
             "category": (EventCategory,),
+            "host": (str,),
             "integration_id": (EventPayloadIntegrationId,),
             "message": (str,),
             "tags": ([str],),
@@ -66,6 +71,7 @@ def openapi_types(_):
         "aggregation_key": "aggregation_key",
         "attributes": "attributes",
         "category": "category",
+        "host": "host",
         "integration_id": "integration_id",
         "message": "message",
         "tags": "tags",
@@ -79,6 +85,7 @@ def __init__(
         category: EventCategory,
         title: str,
         aggregation_key: Union[str, UnsetType] = unset,
+        host: Union[str, UnsetType] = unset,
         integration_id: Union[EventPayloadIntegrationId, UnsetType] = unset,
         message: Union[str, UnsetType] = unset,
         tags: Union[List[str], UnsetType] = unset,
@@ -97,6 +104,9 @@ def __init__(
         :param category: Event category identifying the type of event.
         :type category: EventCategory
 
+        :param host: Host name to associate with the event. Any tags associated with the host are also applied to this event. Limited to 255 characters.
+        :type host: str, optional
+
         :param integration_id: Integration ID sourced from integration manifests.
         :type integration_id: EventPayloadIntegrationId, optional
 
@@ -117,6 +127,8 @@ def __init__(
         """
         if aggregation_key is not unset:
             kwargs["aggregation_key"] = aggregation_key
+        if host is not unset:
+            kwargs["host"] = host
         if integration_id is not unset:
             kwargs["integration_id"] = integration_id
         if message is not unset:

tests/v2/cassettes/test_scenarios/test_post_an_event_returns_bad_request_response.frozen

@@ -1 +1 @@
-2025-06-10T15:38:58.529Z
+2025-12-10T21:31:06.468Z

tests/v2/cassettes/test_scenarios/test_post_an_event_returns_bad_request_response.yaml

@@ -1,6 +1,6 @@
 interactions:
 - request:
-    body: '{"data":{"attributes":{"aggregation_key":"aggregation_key_123","attributes":{"author":{"name":"example@datadog.com","type":"user"},"change_metadata":{"dd":{"team":"datadog_team","user_email":"datadog@datadog.com","user_id":"datadog_user_id","user_name":"datadog_username"},"resource_link":"datadog.com/feature/fallback_payments_test"},"changed_resource":{"name":"fallback_payments_test","type":"feature_flag"},"impacted_resources":[{"name":"payments_api","type":"service"}],"new_value":{"enabled":true,"percentage":"50%","rule":{"datacenter":"devcycle.us1.prod"}},"prev_value":{"enabled":true,"percentage":"10%","rule":{"datacenter":"devcycle.us1.prod"}}},"category":"invalid","integration_id":"custom-events","message":"payment_processed
+    body: '{"data":{"attributes":{"aggregation_key":"aggregation_key_123","attributes":{"author":{"name":"example@datadog.com","type":"user"},"change_metadata":{"dd":{"team":"datadog_team","user_email":"datadog@datadog.com","user_id":"datadog_user_id","user_name":"datadog_username"},"resource_link":"datadog.com/feature/fallback_payments_test"},"changed_resource":{"name":"fallback_payments_test","type":"feature_flag"},"impacted_resources":[{"name":"payments_api","type":"service"}],"new_value":{"enabled":true,"percentage":"50%","rule":{"datacenter":"devcycle.us1.prod"}},"prev_value":{"enabled":true,"percentage":"10%","rule":{"datacenter":"devcycle.us1.prod"}}},"category":"invalid","host":"test-host","integration_id":"custom-events","message":"payment_processed
       feature flag has been enabled","tags":["env:api_client_test"],"title":"payment_processed
       feature flag updated"},"type":"event"}}'
     headers:

tests/v2/cassettes/test_scenarios/test_post_an_event_returns_ok_response.frozen

@@ -1 +1 @@
-2025-06-10T15:38:58.954Z
+2025-12-10T21:30:25.683Z

tests/v2/cassettes/test_scenarios/test_post_an_event_returns_ok_response.yaml

@@ -1,6 +1,6 @@
 interactions:
 - request:
-    body: '{"data":{"attributes":{"aggregation_key":"aggregation_key_123","attributes":{"author":{"name":"example@datadog.com","type":"user"},"change_metadata":{"dd":{"team":"datadog_team","user_email":"datadog@datadog.com","user_id":"datadog_user_id","user_name":"datadog_username"},"resource_link":"datadog.com/feature/fallback_payments_test"},"changed_resource":{"name":"fallback_payments_test","type":"feature_flag"},"impacted_resources":[{"name":"payments_api","type":"service"}],"new_value":{"enabled":true,"percentage":"50%","rule":{"datacenter":"devcycle.us1.prod"}},"prev_value":{"enabled":true,"percentage":"10%","rule":{"datacenter":"devcycle.us1.prod"}}},"category":"change","integration_id":"custom-events","message":"payment_processed
+    body: '{"data":{"attributes":{"aggregation_key":"aggregation_key_123","attributes":{"author":{"name":"example@datadog.com","type":"user"},"change_metadata":{"dd":{"team":"datadog_team","user_email":"datadog@datadog.com","user_id":"datadog_user_id","user_name":"datadog_username"},"resource_link":"datadog.com/feature/fallback_payments_test"},"changed_resource":{"name":"fallback_payments_test","type":"feature_flag"},"impacted_resources":[{"name":"payments_api","type":"service"}],"new_value":{"enabled":true,"percentage":"50%","rule":{"datacenter":"devcycle.us1.prod"}},"prev_value":{"enabled":true,"percentage":"10%","rule":{"datacenter":"devcycle.us1.prod"}}},"category":"change","host":"test-host","integration_id":"custom-events","message":"payment_processed
       feature flag has been enabled","tags":["env:api_client_test"],"title":"payment_processed
       feature flag updated"},"type":"event"}}'
     headers:
@@ -12,7 +12,7 @@ interactions:
     uri: https://event-management-intake.datadoghq.com/api/v2/events
   response:
     body:
-      string: '{"data":{"attributes":{"attributes":{"evt":{"uid":"AZdafqaTAACKG_iMQ82pmAAA"}}},"id":"_","type":"event"},"links":{"self":"https://app.datadoghq.com/event/event?uid=AZdafqaTAACKG_iMQ82pmAAA"}}'
+      string: '{"data":{"attributes":{"attributes":{"evt":{"id":"8407723285051133019","uid":"AZsKLCxvAACrUQTfNDwMWwAA"}}},"id":"_","type":"event"},"links":{"self":"https://app.datadoghq.com/event/event?uid=AZsKLCxvAACrUQTfNDwMWwAA"}}'
     headers:
       content-type:
       - application/json

tests/v2/features/events.feature

@@ -74,14 +74,14 @@ Feature: Events
   @team:DataDog/event-management
   Scenario: Post an event returns "Bad request" response
     Given new "CreateEvent" request
-    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "example@datadog.com", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "datadog@datadog.com", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "invalid", "integration_id": "custom-events", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
+    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "example@datadog.com", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "datadog@datadog.com", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "invalid", "integration_id": "custom-events", "host": "test-host", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
     When the request is sent
     Then the response status is 400 Bad request
 
   @skip-validation @team:DataDog/event-management
   Scenario: Post an event returns "OK" response
     Given new "CreateEvent" request
-    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "example@datadog.com", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "datadog@datadog.com", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "change", "integration_id": "custom-events", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
+    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "example@datadog.com", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "datadog@datadog.com", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "change", "integration_id": "custom-events", "host": "test-host", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
     When the request is sent
     Then the response status is 202 OK
     And the response "data.type" is equal to "event"