feat(core): Added Vendure entity event base class (vendure-ecommerce#…

…1219)

packages/core/src/event-bus/vendure-entity-event.ts

@@ -0,0 +1,29 @@
+import { RequestContext } from '../api';
+
+import { VendureEvent } from './vendure-event';
+
+/**
+ * @description
+ * The base class for all entity events used by the EventBus system.
+ *
+ * @docsCategory events
+ * */
+export abstract class VendureEntityEvent<Entity, Input = any> extends VendureEvent {
+    public readonly entity: Entity;
+    public readonly type: 'created' | 'updated' | 'deleted';
+    public readonly ctx?: RequestContext;
+    public readonly input?: Input;
+
+    protected constructor(
+        entity: Entity,
+        type: 'created' | 'updated' | 'deleted',
+        ctx?: RequestContext,
+        input?: Input,
+    ) {
+        super();
+        this.entity = entity;
+        this.type = type;
+        this.ctx = ctx;
+        this.input = input;
+    }
+}