feat: rate limit api routes (#336)

* feat: install rate-limiter-flexible and ioredis

* feat: setup redis client

* feat: add withRateLimit wrapper

* feat: wrap trpc endpoint in withRateLimit

* feat: wrap withRateLimit on remaining routes

* feat: exclude webhook route from rate limiting

* chore: update compose files and readme

* refactor: move into api/db packages

apps/web/src/pages/api/upload/image.ts

@@ -6,13 +6,13 @@ import { env as nextRuntimeEnv } from "next-runtime-env";
 import { createNextApiContext } from "@kan/api/trpc";
 
 import { env } from "~/env";
+import { withRateLimit } from "@kan/api/utils/rateLimit";
 
 const allowedContentTypes = ["image/jpeg", "image/png"];
 
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse,
-) {
+export default withRateLimit(
+  { points: 100, duration: 60 },
+  async (req: NextApiRequest, res: NextApiResponse) => {
   if (req.method !== "POST") {
     return res.status(405).json({ error: "Method not allowed" });
   }
@@ -71,4 +71,5 @@ export default async function handler(
   } catch (error) {
     return res.status(500).json({ error: (error as Error).message });
   }
-}
+  },
+);