Building Multi-Tenant SaaS: Architectural Patterns with Next.js, Node.js & Redis Cluster
Learn how to architect high-throughput, low-latency multi-tenant web applications. We break down tenant isolation strategies, dynamic database routing, tenant-scoped caching with Redis, and edge authentication middleware.
tenantRouter.ts
TypeScript
// High-performance dynamic tenant resolution middleware
import { NextRequest, NextResponse } from 'next/server';
import { getTenantConfig } from '@ultrasoft/engine';
export async function middleware(req: NextRequest) {
const hostname = req.headers.get('host') || '';
const tenant = await getTenantConfig(hostname);
if (!tenant.isActive) {
return NextResponse.redirect(new URL('/maintenance', req.url));
}
req.headers.set('x-tenant-id', tenant.id);
return NextResponse.next({ request: { headers: req.headers } });
}