@taujs/server

https://www.taujs.dev

This package is part of the τjs [ taujs ] orchestration system, authored by John Smith | Aoede, 2024-present. Attribution is appreciated.

npm install @taujs/server

yarn add @taujs/server

pnpm add @taujs/server

SSR; Streaming SSR; CSR; Hydration; Fastify

Fastify plugin and render orchestration for React, Vue and Solid applications. The renderer ships separately - pair this package with one of:

• @taujs/react
• @taujs/vue
• @taujs/solid

Rendering:

• Server-side rendering (SSR) and Streaming SSR, chosen per declared route
• Client-side rendering (CSR) by omission: when no declared τjs route matches a URL, it remains outside server orchestration; what answers it depends on host ownership

Supported application structure and composition:

• Single-page Application (SPA)
• Multi-page Application (MPA)
• Build-time Micro-Frontends (MFE), with server orchestration and delivery

Assemble independent frontends at build time in a flexible SPA-MPA hybrid: SSR or Streaming SSR per declared route, CSR by omission.

• Production: Fastify
• Development: Fastify, tsx, Vite
• TypeScript-first
• ESM-only

τjs - DX Developer Experience

Integrated Vite HMR run alongside tsx (TS eXecute) providing fast responsive dev reload times for universal backend / frontend changes

• Fastify https://fastify.dev/
• tsx https://tsx.is/
• Vite https://vitejs.dev/

Usage

Scaffold a complete project with npm create @taujs/taujs, or start from the documentation:

• Getting started: https://taujs.dev/guides/getting-started/
• Application contract and configuration: https://taujs.dev/reference/taujs-config/
• Host ownership (bring your own Fastify): https://taujs.dev/guides/host-ownership/
• Renderers: https://taujs.dev/renderers/react/ | https://taujs.dev/renderers/vue/ | https://taujs.dev/renderers/solid/

Routes

Each route path uses Fastify route syntax. Configure router behaviour on the Fastify instance passed to createServer; τjs does not maintain a parallel matcher or duplicate Fastify router options.

Known stale path-to-regexp forms fail at startup rather than registering with different semantics. Auth and route CSP apply only to the Fastify-selected τjs route. Dotted values are valid page-route parameters; asset-like URLs 404 only when no static or declared page route owns them.

Service Registry

Internal service calls resolve route data through a registry of services and methods, linking the render pipeline to your own architecture. See https://taujs.dev/guides/services/