add skeleton for AWS lambda Node implementation

serverless/awsjs/src/index.ts

@@ -0,0 +1,14 @@
+import "../../../js";
+
+import { Context, APIGatewayProxyResult, APIGatewayEvent } from "aws-lambda";
+
+export const handler = async (
+	event: APIGatewayEvent,
+	context: Context
+): Promise<APIGatewayProxyResult> => {
+	const response = {
+		statusCode: 200,
+		body: JSON.stringify("Hello from Lambda!"),
+	};
+	return response;
+};