feat: end to end api type safety with redis rate limiting (#573)

* feat: support hono rpc

* add wrangler file

* update name of wrangler file

* add wrangler as a dependency

* add compatibility_flags

* trigger ci

* core: add health check to docker file

* expose port 80

* update custom healthcheck

* feat: implement openapi

* install dependencies in root

* debug yml

* update yml

* update port

* update dockerfile with envs

* completely move away from apiClient

* rename backend to api

* refactor: update server descriptions and comment out local spec saving

* update lock file

* use api.classroomio.com

* add support for redis

* fix: add missing line break in WelcomeModal.svelte

* refactor: remove wrangler configuration and update Vite config for API integration

apps/api/src/constants/index.ts

@@ -0,0 +1,29 @@
+import { env } from '$src/config/env';
+
+export * from './rate-limiter';
+
+const {
+  CLOUDFLARE_BUCKET_DOMAIN,
+  CLOUDFLARE_ACCESS_KEY,
+  CLOUDFLARE_SECRET_ACCESS_KEY,
+  CLOUDFLARE_ACCOUNT_ID,
+  CLOUDFLARE_RENDERING_API_KEY
+} = env;
+
+export const CLOUDFLARE = {
+  CONFIGS: {
+    BUCKET_DOMAIN: CLOUDFLARE_BUCKET_DOMAIN!,
+    ACCESS_KEY: CLOUDFLARE_ACCESS_KEY!,
+    RENDERING_API_KEY: CLOUDFLARE_RENDERING_API_KEY!,
+    SECRET_ACCESS_KEY: CLOUDFLARE_SECRET_ACCESS_KEY!,
+    ACCOUNT_ID: CLOUDFLARE_ACCOUNT_ID!
+  },
+  R2: {
+    BUCKET: 'videos',
+    BUCKET_DOMAIN: CLOUDFLARE_ACCOUNT_ID
+      ? `https://${CLOUDFLARE_ACCOUNT_ID}.r2.cloudflarestorage.com`
+      : CLOUDFLARE_BUCKET_DOMAIN!,
+    PRESIGN_EXPIRATION_TIME: 60 * 60, // 1 hour
+    DOWNLOAD_EXPIRATION_TIME: 60 * 60 // 1 hour
+  }
+} as const;

apps/api/src/constants/rate-limiter.ts

@@ -0,0 +1,32 @@
+// Default time window for rate limiting (1 minute in milliseconds)
+export const DEFAULT_WINDOW_MS = 60 * 1000;
+
+export const DEFAULT_MAX_REQUESTS = 100;
+
+export const RATE_LIMIT_KEY_PREFIX = 'rate_limit:';
+
+export const DEFAULT_RATE_LIMITER_OPTIONS = {
+  windowMs: DEFAULT_WINDOW_MS,
+  maxRequests: DEFAULT_MAX_REQUESTS,
+  skipSuccessfulRequests: false,
+  skipFailedRequests: false,
+  message: 'Rate limit exceeded. Please try again later.',
+  standardHeaders: true,
+  legacyHeaders: false
+} as const;
+
+export const HTTP_STATUS = {
+  TOO_MANY_REQUESTS: 429
+} as const;
+
+export const ERROR_MESSAGES = {
+  RATE_LIMIT_EXCEEDED: 'Too Many Requests',
+  REDIS_PIPELINE_FAILED: 'Redis pipeline execution failed'
+} as const;
+
+export const RATE_LIMIT_HEADERS = {
+  LIMIT: 'X-RateLimit-Limit',
+  REMAINING: 'X-RateLimit-Remaining',
+  RESET: 'X-RateLimit-Reset',
+  RETRY_AFTER: 'Retry-After'
+} as const;

apps/api/src/constants/upload.ts

@@ -0,0 +1,20 @@
+export const ALLOWED_CONTENT_TYPES = [
+  'video/mp4',
+  'video/quicktime',
+  'video/x-msvideo',
+  'video/x-matroska'
+] as const;
+
+export const ALLOWED_DOCUMENT_TYPES = [
+  'application/pdf',
+  'application/vnd.openxmlformats-officedocument.wordprocessingml.document', // .docx
+  'application/msword' // .doc
+] as const;
+
+export const MAX_FILE_SIZE = 500 * 1024 * 1024; // 500MB
+export const MAX_DOCUMENT_SIZE = 5 * 1024 * 1024; // 5MB
+
+export const BUCKET_NAME = {
+  VIDEOS: 'videos',
+  DOCUMENTS: 'documents'
+} as const;