From f5ae8b5cb2e623a83c64915b4e018074cd8e4aeb Mon Sep 17 00:00:00 2001
From: Jason Hall <jason@chainguard.dev>
Date: Sat, 12 Aug 2023 10:40:58 -0400
Subject: [PATCH] demo using ESM with KV and R2

Signed-off-by: Jason Hall <jason@chainguard.dev>
---
 cf-worker/main.tf   | 12 ++++++++++++
 cf-worker/script.js | 22 ++++++++++++++++------
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/cf-worker/main.tf b/cf-worker/main.tf
index 3605f49..5f4f6d2 100644
--- a/cf-worker/main.tf
+++ b/cf-worker/main.tf
@@ -20,12 +20,24 @@ resource "cloudflare_worker_script" "script" {
   name       = var.name
   content    = file("script.js")
 
+  module = true
+
   kv_namespace_binding {
     name         = "KV"
     namespace_id = cloudflare_workers_kv_namespace.kv_ns.id
   }
+
+  r2_bucket_binding {
+    name        = "R2"
+    bucket_name = cloudflare_r2_bucket.bucket.name
+  }
 }
 
+resource "cloudflare_r2_bucket" "bucket" {
+  account_id = var.cloudflare_account_id
+  name       = "${var.name}-bucket"
+  location   = "ENAM"
+}
 
 /*
 resource "cloudflare_worker_route" "route" {
diff --git a/cf-worker/script.js b/cf-worker/script.js
index 504078c..e01543f 100644
--- a/cf-worker/script.js
+++ b/cf-worker/script.js
@@ -1,6 +1,16 @@
-addEventListener("fetch", (event) => {
-    console.log("Hello from the service worker!");
-    let value = KV.get("foo");
-    event.respondWith(new Response(value,
-        { headers: { "content-type": "text/plain" } }));
-});
+export default {
+    async fetch(request, env, ctx) {
+        let value = await env.KV.get("foo");
+        await env.KV.put("foo", value + "r");
+
+        let obj = await env.R2.get("foo");
+        if (!obj) {
+            obj = "ba";
+        } else {
+            obj = await obj.text();
+        }
+        await env.R2.put("foo", obj + "r");
+
+        return new Response(`${value} / ${obj}`);
+    },
+};