Cav

A server framework for Deno.

• Goals
• Inspirations

Status: Full of bugs but ready to play with. Do NOT use this in production.

Goals

• It should do the basics
  • Routing
  • Static asset serving
  • Signed cookies
  • Web sockets
  • Form and JSON parsing
  • De/serialization of most JS data types, including Dates, Maps, Files…
  • Runtime bundling for browser-side TypeScript
  • Works with frontend frameworks like Preact
• It shouldn’t require special configs, setups, or tooling
  • No CLI or config files
  • No dictated project structures
• Client functions should use types imported from the server to fully type requests and responses
  • End-to-end typesafety
  • Compatible with Zod
• Its syntax should be functional and declarative
  • Immutable, schema-like Router and Endpoint definitions
  • No middleware
  • Functions all the way down
• It should be as independent as possible
  • No third-party dependencies
• Deployments should be simple
  • Deno Deploy without a build step

Inspirations

• Express / Koa / Oak
• Zod / tRPC
• superjson / devalue / json-dry