feat: provide aws proxy handler

docs/running-in-lambda.md

@@ -67,25 +67,20 @@ created. Click on **Create function**.
 
 ### Handler code
 
-The Lambda handler will need the packages `@fastify/aws-lambda` and
-`turborepo-remote-cache` installed. Your `index.js` handler code should look
-like this:
+Create a new package for your Lambda handler, and add `turborepo-remote-cache`
+as a dependency. Your `index.js` handler code should look like this:
 
 ```js
-import awsLambdaFastify from '@fastify/aws-lambda';
-import { createApp } from 'turborepo-remote-cache/build/app';
-
-const app = createApp({
-	trustProxy: true,
-});
+export { handler } from 'turborepo-remote-cache/build/aws-lambda';
+```
 
-const proxy = awsLambdaFastify(app, { enforceBase64: (_) => true });
+*Note - You will need to bundle dependencies and upload the handler code. How
+you choose to do this is outside the scope of this guide, but one method to
+consider is using `esbuild`:*
 
-export const handler = proxy;
 ```
-
-*Note - how you choose to bundle dependencies and upload the handler code are
-outside the scope of this document.*
+esbuild src/index.js --bundle --platform=node --outfile=build/index.js
+```
 
 ### Configuration
 

package.json

@@ -32,6 +32,7 @@
   },
   "dependencies": {
     "@commitlint/lint": "^17.2.0",
+    "@fastify/aws-lambda": "^3.1.3",
     "@google-cloud/storage": "6.4.1",
     "@hapi/boom": "9.1.4",
     "@sinclair/typebox": "0.23.1",

src/aws-lambda.ts

@@ -0,0 +1,9 @@
+import awsLambdaFastify from '@fastify/aws-lambda'
+import { createApp } from './app'
+
+const app = createApp({
+  trustProxy: true,
+})
+
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export const handler = awsLambdaFastify(app, { enforceBase64: _ => true })