Repository interface

Repository implementation

Service layer class

N+1: batch ID collection

N+1: Map-based association

Specific column selection

RESTful URL structure

Query parameter support

ApiError class

Centralized error handler: ApiError branch

Centralized error handler: ZodError branch

Bearer token extraction

Missing token error

JWT verification library

rolePermissions map

hasPermission function

requirePermission HOF

RateLimiter Map storage

Sliding window filter

429 with x-forwarded-for

Cache-aside: check before fetch

Cache TTL 300 seconds

Cache key format

Logger class methods

Structured JSON log entries

requestId per request

method and path in log context

Exponential backoff formula

Default maxRetries = 3

Non-blocking job queue

Immediate queued response