feat(event-handler): expose event & context as object (#4113)

Author: dreamorosi

packages/event-handler/src/appsync-graphql/AppSyncGraphQLResolver.ts

@@ -145,8 +145,7 @@ class AppSyncGraphQLResolver extends Router {
     if (resolverHandlerOptions) {
       return resolverHandlerOptions.handler.apply(options?.scope ?? this, [
         event.arguments,
-        event,
-        context,
+        { event, context },
       ]);
     }
 

packages/event-handler/src/types/appsync-graphql.ts

@@ -7,14 +7,18 @@ import type { Router } from '../appsync-graphql/Router.js';
 
 type ResolverSyncHandlerFn<TParams = Record<string, unknown>> = (
   args: TParams,
-  event: AppSyncResolverEvent<TParams>,
-  context: Context
+  options: {
+    event: AppSyncResolverEvent<TParams>;
+    context: Context;
+  }
 ) => unknown;
 
 type ResolverHandlerFn<TParams = Record<string, unknown>> = (
   args: TParams,
-  event: AppSyncResolverEvent<TParams>,
-  context: Context
+  options: {
+    event: AppSyncResolverEvent<TParams>;
+    context: Context;
+  }
 ) => Promise<unknown>;
 
 type ResolverHandler<TParams = Record<string, unknown>> =

packages/event-handler/tests/unit/appsync-graphql/AppSyncGraphQLResolver.test.ts

@@ -174,13 +174,16 @@ describe('Class: AppSyncGraphQLResolver', () => {
   it('resolver function has access to event and context', async () => {
     // Prepare
     const app = new AppSyncGraphQLResolver({ logger: console });
-    app.onQuery<{ id: string }>('getPost', async ({ id }, event, context) => {
-      return {
-        id,
-        event,
-        context,
-      };
-    });
+    app.onQuery<{ id: string }>(
+      'getPost',
+      async ({ id }, { event, context }) => {
+        return {
+          id,
+          event,
+          context,
+        };
+      }
+    );
 
     // Act
     const event = onGraphqlEventFactory('getPost', 'Query', { id: '123' });