Overview

SolidStart 2.0 builds a full-stack app on top of Solid and Solid Router, with file-based routing, server functions, and Vite-based configuration.

The framework is split into a handful of entry points:

• @solidjs/start/config for the solidStart() Vite plugin
• @solidjs/start/router for file-routed UI integration
• @solidjs/start/server for server rendering helpers and server-side types
• @solidjs/start/http for request, response, cookie, and session helpers
• @solidjs/start/middleware for middleware composition

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What v2 keeps

The core model carries over from v1:

• File-based routing from src/routes
• API route handlers exported by HTTP method name
• Server-backed data loading and mutation with query and action
• Server-only code compiled from the "use server" directive

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What changed from v1

Configuration moved from app.config.ts to vite.config.ts through solidStart().

If you are upgrading an existing app, start with the migration guide.