From 4245808ee7e7d33156d92a16bd10918e6003185d Mon Sep 17 00:00:00 2001
From: unnoq <contact@unnoq.com>
Date: Thu, 13 Nov 2025 14:28:15 +0700
Subject: [PATCH 1/2] feat(ratelimit): Cloudflare Worker Ratelimit Adapter

---
 apps/content/docs/helpers/ratelimit.md         | 18 +++++++++++++++++-
 packages/ratelimit/package.json                |  8 +++++++-
 .../src/adapters/cloudflare-ratelimit.test.ts  | 17 +++++++++++++++++
 .../src/adapters/cloudflare-ratelimit.ts       | 13 +++++++++++++
 4 files changed, 54 insertions(+), 2 deletions(-)
 create mode 100644 packages/ratelimit/src/adapters/cloudflare-ratelimit.test.ts
 create mode 100644 packages/ratelimit/src/adapters/cloudflare-ratelimit.ts

diff --git a/apps/content/docs/helpers/ratelimit.md b/apps/content/docs/helpers/ratelimit.md
index 0257b0675..40deb9d88 100644
--- a/apps/content/docs/helpers/ratelimit.md
+++ b/apps/content/docs/helpers/ratelimit.md
@@ -72,7 +72,7 @@ const limiter = new RedisRatelimiter({
 You can use any Redis client that supports Lua script evaluation by providing an `eval` function.
 :::
 
-### Upstash Adapter
+### Upstash Ratelimit Adapter
 
 Adapter for [@upstash/ratelimit](https://www.npmjs.com/package/@upstash/ratelimit), optimized for serverless environments like Vercel Edge and Cloudflare Workers.
 
@@ -103,6 +103,22 @@ const limiter = new UpstashRatelimiter(ratelimit, {
 
 :::
 
+### Cloudflare Ratelimit Adapter
+
+Adapter for [Cloudflare Workers Ratelimit](https://developers.cloudflare.com/workers/runtime-apis/bindings/rate-limit/).
+
+```ts
+import { CloudflareRatelimiter } from '@orpc/experimental-ratelimit/cloudflare-ratelimit'
+
+export default {
+  async fetch(request, env) {
+    const limiter = new CloudflareRatelimiter(env.MY_RATE_LIMITER)
+
+    return new Response(`Hello World!`)
+  }
+}
+```
+
 ## Blocking Mode
 
 Some adapters support blocking mode, which waits for the rate limit to reset instead of immediately rejecting requests.
diff --git a/packages/ratelimit/package.json b/packages/ratelimit/package.json
index e53ecfe03..63d478fa2 100644
--- a/packages/ratelimit/package.json
+++ b/packages/ratelimit/package.json
@@ -34,6 +34,11 @@
         "types": "./dist/adapters/upstash-ratelimit.d.mts",
         "import": "./dist/adapters/upstash-ratelimit.mjs",
         "default": "./dist/adapters/upstash-ratelimit.mjs"
+      },
+      "./cloudflare-ratelimit": {
+        "types": "./dist/adapters/cloudflare-ratelimit.d.mts",
+        "import": "./dist/adapters/cloudflare-ratelimit.mjs",
+        "default": "./dist/adapters/cloudflare-ratelimit.mjs"
       }
     }
   },
@@ -41,7 +46,8 @@
     ".": "./src/index.ts",
     "./memory": "./src/adapters/memory.ts",
     "./redis": "./src/adapters/redis.ts",
-    "./upstash-ratelimit": "./src/adapters/upstash-ratelimit.ts"
+    "./upstash-ratelimit": "./src/adapters/upstash-ratelimit.ts",
+    "./cloudflare-ratelimit": "./src/adapters/cloudflare-ratelimit.ts"
   },
   "files": [
     "dist"
diff --git a/packages/ratelimit/src/adapters/cloudflare-ratelimit.test.ts b/packages/ratelimit/src/adapters/cloudflare-ratelimit.test.ts
new file mode 100644
index 000000000..3d99781dd
--- /dev/null
+++ b/packages/ratelimit/src/adapters/cloudflare-ratelimit.test.ts
@@ -0,0 +1,17 @@
+import { CloudflareRatelimiter } from './cloudflare-ratelimit'
+
+it('cloudflareRatelimiter', async () => {
+  const ratelimit = {
+    limit: vi.fn(() => Promise.resolve({ success: true })),
+  }
+
+  const ratelimiter = new CloudflareRatelimiter(ratelimit)
+
+  const result = ratelimiter.limit('test-key')
+
+  expect(ratelimit.limit).toHaveBeenCalledTimes(1)
+  expect(ratelimit.limit).toHaveBeenCalledWith({ key: 'test-key' })
+  expect(result).toBe(ratelimit.limit.mock.results[0]!.value)
+
+  expect(await result).toEqual({ success: true })
+})
diff --git a/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts b/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts
new file mode 100644
index 000000000..061878b5e
--- /dev/null
+++ b/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts
@@ -0,0 +1,13 @@
+import type { Ratelimiter, RatelimiterLimitResult } from '@orpc/experimental-ratelimit'
+
+export class CloudflareRatelimiter implements Ratelimiter {
+  constructor(
+    private readonly ratelimit: {
+      limit: (options: { key: string }) => Promise<RatelimiterLimitResult>
+    },
+  ) {}
+
+  limit(key: string): Promise<RatelimiterLimitResult> {
+    return this.ratelimit.limit({ key })
+  }
+}

From 24987e9f0ca24005534cbce7f0fb671d628793b1 Mon Sep 17 00:00:00 2001
From: unnoq <contact@unnoq.com>
Date: Thu, 13 Nov 2025 14:46:33 +0700
Subject: [PATCH 2/2] Update
 packages/ratelimit/src/adapters/cloudflare-ratelimit.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 packages/ratelimit/src/adapters/cloudflare-ratelimit.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts b/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts
index 061878b5e..a94fa368f 100644
--- a/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts
+++ b/packages/ratelimit/src/adapters/cloudflare-ratelimit.ts
@@ -1,4 +1,4 @@
-import type { Ratelimiter, RatelimiterLimitResult } from '@orpc/experimental-ratelimit'
+import type { Ratelimiter, RatelimiterLimitResult } from '../types'
 
 export class CloudflareRatelimiter implements Ratelimiter {
   constructor(