Why are so many SaaS founders moving away from separate SPA (Single Page Application) frontends a...Why are so many SaaS founders moving away from separate SPA (Single Page Application) frontends a...
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Krishna Bhandari
• Sep 5
Why are so many SaaS founders moving away from separate SPA (Single Page Application) frontends and heavy REST APIs for their core web app?
Simple: Context-switching overhead.
Building a decoupled React/Vue SPA with a separate Laravel API means:
Writing dual type definitions / interfaces.
Setting up complex state hydration and token auth (Sanctum/JWT).
Managing redundant API endpoints just to feed basic dashboard views.
Spending 40% of dev time mapping backend data to frontend state.
For 80% of SaaS applications, Inertia.js + Vue 3 (Composition API) completely obliterates this friction.
Inertia acts as the bridge. It gives you:
Full SPA Experience: No full-page reloads, smooth transitions, instant interactive UI.
Monolith Simplicity: Pass data directly from Laravel controllers to Vue components via props, no API layer needed.
Clean State Control: Pair it with Pinia for local UI state (modals, filters, multi-step forms) without touching backend memory.
You don't need a bloated architecture to feel "modern." You just need a stack that lets you ship features fast without sacrificing snappy user experience.
If you're building on Laravel, what's your go-to frontend setup right now? Inertia + Vue, standard REST API, or Livewire?
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