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.java

@@ -79,6 +79,7 @@ public static void main(String[] args) {
                                                     "{'datacenter': 'devcycle.us1.prod'}")))))
                             .category(EventCategory.CHANGE)
                             .integrationId(EventPayloadIntegrationId.CUSTOM_EVENTS)
+                            .host("test-host")
                             .message("payment_processed feature flag has been enabled")
                             .tags(Collections.singletonList("env:api_client_test"))
                             .title("payment_processed feature flag updated"))

src/main/java/com/datadog/api/client/v2/model/EventPayload.java

@@ -20,6 +20,7 @@
   EventPayload.JSON_PROPERTY_AGGREGATION_KEY,
   EventPayload.JSON_PROPERTY_ATTRIBUTES,
   EventPayload.JSON_PROPERTY_CATEGORY,
+  EventPayload.JSON_PROPERTY_HOST,
   EventPayload.JSON_PROPERTY_INTEGRATION_ID,
   EventPayload.JSON_PROPERTY_MESSAGE,
   EventPayload.JSON_PROPERTY_TAGS,
@@ -39,6 +40,9 @@ public class EventPayload {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private EventCategory category;
 
+  public static final String JSON_PROPERTY_HOST = "host";
+  private String host;
+
   public static final String JSON_PROPERTY_INTEGRATION_ID = "integration_id";
   private EventPayloadIntegrationId integrationId;
 
@@ -138,6 +142,28 @@ public void setCategory(EventCategory category) {
     this.category = category;
   }
 
+  public EventPayload host(String host) {
+    this.host = host;
+    return this;
+  }
+
+  /**
+   * Host name to associate with the event. Any tags associated with the host are also applied to
+   * this event. Limited to 255 characters.
+   *
+   * @return host
+   */
+  @jakarta.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_HOST)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public String getHost() {
+    return host;
+  }
+
+  public void setHost(String host) {
+    this.host = host;
+  }
+
   public EventPayload integrationId(EventPayloadIntegrationId integrationId) {
     this.integrationId = integrationId;
     this.unparsed |= !integrationId.isValid();
@@ -273,6 +299,7 @@ public boolean equals(Object o) {
     return Objects.equals(this.aggregationKey, eventPayload.aggregationKey)
         && Objects.equals(this.attributes, eventPayload.attributes)
         && Objects.equals(this.category, eventPayload.category)
+        && Objects.equals(this.host, eventPayload.host)
         && Objects.equals(this.integrationId, eventPayload.integrationId)
         && Objects.equals(this.message, eventPayload.message)
         && Objects.equals(this.tags, eventPayload.tags)
@@ -283,7 +310,7 @@ public boolean equals(Object o) {
   @Override
   public int hashCode() {
     return Objects.hash(
-        aggregationKey, attributes, category, integrationId, message, tags, timestamp, title);
+        aggregationKey, attributes, category, host, integrationId, message, tags, timestamp, title);
   }
 
   @Override
@@ -293,6 +320,7 @@ public String toString() {
     sb.append("    aggregationKey: ").append(toIndentedString(aggregationKey)).append("\n");
     sb.append("    attributes: ").append(toIndentedString(attributes)).append("\n");
     sb.append("    category: ").append(toIndentedString(category)).append("\n");
+    sb.append("    host: ").append(toIndentedString(host)).append("\n");
     sb.append("    integrationId: ").append(toIndentedString(integrationId)).append("\n");
     sb.append("    message: ").append(toIndentedString(message)).append("\n");
     sb.append("    tags: ").append(toIndentedString(tags)).append("\n");

src/test/resources/cassettes/features/v2/Post_an_event_returns_Bad_request_response.freeze

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

src/test/resources/cassettes/features/v2/Post_an_event_returns_Bad_request_response.json

@@ -3,7 +3,7 @@
     "httpRequest": {
       "body": {
         "type": "JSON",
-        "json": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"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\"}}"
+        "json": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"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": {},
       "method": "POST",
@@ -27,6 +27,6 @@
     "timeToLive": {
       "unlimited": true
     },
-    "id": "b35f8f84-50dc-70b8-3d76-61b05817ff7e"
+    "id": "df202477-5328-5206-f854-ba0313ce3ab1"
   }
 ]

src/test/resources/cassettes/features/v2/Post_an_event_returns_OK_response.freeze

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

src/test/resources/cassettes/features/v2/Post_an_event_returns_OK_response.json

@@ -3,7 +3,7 @@
     "httpRequest": {
       "body": {
         "type": "JSON",
-        "json": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"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\"}}"
+        "json": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"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": {},
       "method": "POST",
@@ -12,7 +12,7 @@
       "secure": true
     },
     "httpResponse": {
-      "body": "{\"data\":{\"attributes\":{\"attributes\":{\"evt\":{\"uid\":\"AZdafqaTAACKG_iMQ82pmAAA\"}}},\"id\":\"_\",\"type\":\"event\"},\"links\":{\"self\":\"https://app.datadoghq.com/event/event?uid=AZdafqaTAACKG_iMQ82pmAAA\"}}",
+      "body": "{\"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"
@@ -27,6 +27,6 @@
     "timeToLive": {
       "unlimited": true
     },
-    "id": "12f2ce8c-e9b9-19c0-6a47-1c2b7d261fb3"
+    "id": "7b0f8268-4418-29ad-8e3e-52424c7477bd"
   }
 ]

src/test/resources/com/datadog/api/client/v2/api/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": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "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": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "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": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "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": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "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"