Architecting Multi-Tenant Solutions with Next.js and the App Router
summary
A production Next.js multi-tenant storefront runs for two years using the App Router, middleware that does a middleware lookup table from incoming domain/custom domain to tenant ID, and route masking via next.config rewrites or middleware. Pages use ISR with a short 1 minute TTL so cached pages regenerate in background, avoiding slow first responses but requiring tenant-scoped cache keys to prevent cross-tenant leaks. Repo and a starter kit exist, observability and per-tenant metrics drive decisions rather than premature optimization.
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chapters (10)
- 0:00Introduction and background
- 2:00Multi-tenant architecture overview
- 5:53Challenges in multi-tenant apps
- 8:43Middleware for tenant identification
- 10:46Routing and caching in Next.js
- 13:20Danger zone of tenant data leakage
- 15:31Dynamic routing for tenant isolation
- 16:58Custom domains and URL rewrites
- 18:24Starter kits and resources
- 19:28Key takeaways and best practices
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