Initial commit for TypeScript layer example

Author: AWSRoman

sample-apps/layer-typescript/function/index.ts

@@ -0,0 +1,28 @@
+import { Handler } from 'aws-lambda';
+import * as _ from 'lodash';
+
+type User = {
+  user: string;
+  active: boolean;
+}
+
+type UserResult = {
+  statusCode: number;
+  body: string;
+}
+
+const users: User[] = [
+  { 'user': 'Carlos', 'active': true },
+  { 'user': 'Gil-dong', 'active': false },
+  { 'user': 'Pat', 'active': false }
+];
+
+export const handler: Handler<any, UserResult> = async (): Promise<UserResult> => {
+
+  let out = _.findLastIndex(users, (user: User) => { return user.user == 'Pat'; });
+  const response = {
+    statusCode: 200,
+    body: JSON.stringify(out + ", " + users[out].user),
+  };
+  return response;
+};