Files
sencho/backend
Anso 856a260a11 refactor(backend): extract rate limiters, body parsing, and request gates (phase 1) (#731)
Phase 1 of the index.ts monolith refactor. Extracts all non-auth middleware
into focused modules. Routes and authMiddleware itself stay in index.ts for
now; Phase 2 introduces createApp() and extracts authMiddleware.

New modules:
- middleware/rateLimiters.ts: globalApiLimiter, pollingLimiter,
  webhookTriggerLimiter, authRateLimiter, ssoRateLimiter, trivyInstallLimiter
  plus the hybrid rateLimitKeyGenerator and isNodeProxyRequest helper
- middleware/jsonParser.ts: conditionalJsonParser that preserves the raw
  stream for remote-proxy forwarding (via helpers/proxyExemptPaths)
- middleware/nodeContext.ts: nodeContextMiddleware
- middleware/apiTokenScope.ts: enforceApiTokenScope + DEPLOY_ALLOWED_PATTERNS
- middleware/authGate.ts: createAuthGate(authMiddleware) factory + auditLog.
  Factory takes authMiddleware as a dependency to avoid a circular import
  until Phase 2 extracts the auth module.
- middleware/errorHandler.ts: central error handler that preserves
  err.status / err.expose from body-parser and other HTTP errors
- helpers/routePatterns.ts: WEBHOOK_TRIGGER_RE shared by rateLimiters and
  authGate

index.ts drops ~290 lines. Middleware registration order is unchanged.
All 1278 tests pass.

Code review fixes: typed ApiTokenScope in apiTokenScope.ts; replaced 2
em dashes with colons (Directive 18); added local CachedProxyFlagReq
type alias for the node_proxy memoization cast; extracted deny() helper.
2026-04-23 18:22:26 -04:00
..