Skip to main content

Middleware Configuration

Learn how to configure middleware for request processing in FSS.

Next.js Middleware​

// middleware.ts
import { NextResponse } from 'next/server';
import type { NextRequest } from 'next/server';

export function middleware(request: NextRequest) {
  // Check for authentication
  const token = request.cookies.get('auth-token')?.value;
  
  if (!token && !isPublicPath(request.nextUrl.pathname)) {
    return NextResponse.redirect(new URL('/login', request.url));
  }
  
  return NextResponse.next();
}

function isPublicPath(pathname: string): boolean {
  const publicPaths = ['/login', '/register', '/forgot-password'];
  return publicPaths.some(path => pathname.startsWith(path));
}

export const config = {
  matcher: ['/((?!api|_next/static|_next/image|favicon.ico).*)'],
};

NestJS Middleware​

// src/middleware/auth.middleware.ts
import { Injectable, NestMiddleware } from '@nestjs/common';
import { Request, Response, NextFunction } from 'express';

@Injectable()
export class AuthMiddleware implements NestMiddleware {
  use(req: Request, res: Response, next: NextFunction) {
    const token = req.headers.authorization?.split(' ')[1];
    
    if (!token) {
      return res.status(401).json({ message: 'Unauthorized' });
    }
    
    // Validate token
    // ...
    
    next();
  }
}