From 5293cdea0346c8241e8436c08f392d84085582b4 Mon Sep 17 00:00:00 2001
From: Jack Kleeman <jackkleeman@gmail.com>
Date: Mon, 24 Jun 2024 10:23:00 +0100
Subject: [PATCH] Cloudflare workers example (#154)

* Cloudflare workers examples

* Use /fetch component

* Add README
---
 templates/cloudflare-worker/.gitignore       |  1 +
 templates/cloudflare-worker/.prettierrc      |  7 +++++++
 templates/cloudflare-worker/README.md        | 13 ++++++++++++
 templates/cloudflare-worker/package.json     | 21 ++++++++++++++++++++
 templates/cloudflare-worker/src/index.ts     | 17 ++++++++++++++++
 templates/cloudflare-worker/tsconfig.json    | 13 ++++++++++++
 templates/cloudflare-worker/wrangler.toml    |  4 ++++
 templates/typescript-lambda-cdk/package.json |  2 +-
 8 files changed, 77 insertions(+), 1 deletion(-)
 create mode 100644 templates/cloudflare-worker/.gitignore
 create mode 100644 templates/cloudflare-worker/.prettierrc
 create mode 100644 templates/cloudflare-worker/README.md
 create mode 100644 templates/cloudflare-worker/package.json
 create mode 100644 templates/cloudflare-worker/src/index.ts
 create mode 100644 templates/cloudflare-worker/tsconfig.json
 create mode 100644 templates/cloudflare-worker/wrangler.toml

diff --git a/templates/cloudflare-worker/.gitignore b/templates/cloudflare-worker/.gitignore
new file mode 100644
index 00000000..e7137800
--- /dev/null
+++ b/templates/cloudflare-worker/.gitignore
@@ -0,0 +1 @@
+.wrangler
diff --git a/templates/cloudflare-worker/.prettierrc b/templates/cloudflare-worker/.prettierrc
new file mode 100644
index 00000000..da245af4
--- /dev/null
+++ b/templates/cloudflare-worker/.prettierrc
@@ -0,0 +1,7 @@
+{
+  "trailingComma": "all",
+  "tabWidth": 2,
+  "semi": true,
+  "arrowParens": "always",
+  "printWidth": 120
+}
diff --git a/templates/cloudflare-worker/README.md b/templates/cloudflare-worker/README.md
new file mode 100644
index 00000000..e92044ce
--- /dev/null
+++ b/templates/cloudflare-worker/README.md
@@ -0,0 +1,13 @@
+# Hello world - Cloudflare workers + Typescript example
+
+Sample project configuration of a Restate service using the TypeScript SDK and
+Cloudflare Workers.
+
+Have a look at the [TypeScript Quickstart guide](https://docs.restate.dev/get_started/quickstart?sdk=ts) for more information about the SDK.
+
+You can run locally with `npm run dev` and register to Restate with
+`restate dep add http://localhost:9080 --use-http1.1`. `--use-http1.1` is needed
+with the local Workers dev server, as it does not expose HTTP2.
+
+You can deploy to cloudflare with `npm run deploy` and register to Restate with
+`restate dep add https://restate-cloudflare-worker.<your-subdomain>.workers.dev`.
diff --git a/templates/cloudflare-worker/package.json b/templates/cloudflare-worker/package.json
new file mode 100644
index 00000000..f6934b0c
--- /dev/null
+++ b/templates/cloudflare-worker/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "restate-cloudflare-worker-template",
+  "type": "module",
+  "version": "0.0.1",
+  "scripts": {
+    "deploy": "wrangler deploy",
+    "dev": "wrangler dev --port 9080",
+    "start": "wrangler dev --port 9080",
+    "format": "prettier --write \"src/*.+(js|ts|json)\""
+  },
+  "dependencies": {
+    "@restatedev/restate-sdk": "^1.0.1"
+  },
+  "devDependencies": {
+    "@cloudflare/workers-types": "^4.20240605.0",
+    "prettier": "^3.3.2",
+    "typescript": "^5.4.5",
+    "wrangler": "^3.0.0"
+  },
+  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
+}
diff --git a/templates/cloudflare-worker/src/index.ts b/templates/cloudflare-worker/src/index.ts
new file mode 100644
index 00000000..42101cc4
--- /dev/null
+++ b/templates/cloudflare-worker/src/index.ts
@@ -0,0 +1,17 @@
+import { Context, endpoint, service } from "@restatedev/restate-sdk/fetch";
+
+// Template of a Restate service and handler
+//
+// Have a look at the TS QuickStart: https://docs.restate.dev/get_started/quickstart?sdk=ts
+//
+
+const greeter = service({
+  name: "greeter",
+  handlers: {
+    greet: async (ctx: Context, greeting: string) => {
+      return `${greeting}!`;
+    },
+  },
+});
+
+export default endpoint().bind(greeter).handler();
diff --git a/templates/cloudflare-worker/tsconfig.json b/templates/cloudflare-worker/tsconfig.json
new file mode 100644
index 00000000..798432ee
--- /dev/null
+++ b/templates/cloudflare-worker/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "noEmit": true,
+    "module": "nodenext",
+    "target": "esnext",
+    "lib": ["esnext"],
+    "strict": true,
+    "moduleResolution": "nodenext",
+    "types": ["@cloudflare/workers-types"],
+    "skipLibCheck": true
+  },
+  "exclude": ["node_modules", "dist", "test"]
+}
diff --git a/templates/cloudflare-worker/wrangler.toml b/templates/cloudflare-worker/wrangler.toml
new file mode 100644
index 00000000..a84ff668
--- /dev/null
+++ b/templates/cloudflare-worker/wrangler.toml
@@ -0,0 +1,4 @@
+name = "restate-cloudflare-worker"
+main = "./src/index.ts"
+compatibility_date = "2024-05-13"
+compatibility_flags = [ "nodejs_compat" ]
diff --git a/templates/typescript-lambda-cdk/package.json b/templates/typescript-lambda-cdk/package.json
index 4a33c0ab..029e14cd 100644
--- a/templates/typescript-lambda-cdk/package.json
+++ b/templates/typescript-lambda-cdk/package.json
@@ -23,7 +23,7 @@
     "typescript": "^5.4.5"
   },
   "dependencies": {
-    "@restatedev/restate-sdk": "^1.0.0",
+    "@restatedev/restate-sdk": "^1.0.1",
     "aws-cdk-lib": "^2.145.0",
     "constructs": "^10.3.0",
     "source-map-support": "^0.5.21"