Middleware

0 articles

Browser Language Detection Chain: Next.js Three-Layer Architecture for Automatic Language Push

This article details a three-layer browser language detection chain architecture, covering Middleware Cookie setting, i18n request.ts parsing, client-side I18nProvider synchronization, and the differentiated implementation across two Next.js applications in a Monorepo.

System Architecture

CSRF Dual Middleware Protection: Intelligent Skip Strategy + Token Dual Storage

A CSRF protection system based on NestJS middleware, supporting intelligent skipping of JWT/Webhook/Auth routes, a Cookie + Session dual storage Token scheme, and a dual middleware architecture encompassing CsrfTokenMiddleware and CsrfMiddleware.

Interface Management

Full-Stack Authentication System — API JWT Dual Secret + Flutter AuthNotifier + admin-next Edge Middleware + Cookie Guard

Tracking the complete lifecycle of authentication tokens across three platforms: API issuance and verification (Passport JWT + Dual Secret Strategy) → Flutter secure storage and state machine refresh → admin-next Edge Middleware Cookie route guard and HTTP interceptor automatic refresh

Management Backend

Middleware JWT Route Guard — Authentication Defense Line Under Edge Runtime

The admin backend implements route-level JWT authentication guard via Middleware under Edge Runtime, performing server-side verification before requests reach the page, forming the first barrier of a two-layer security defense.

Management Backend