@react-router/express

Express server request handler for React Router.

npm install @react-router/express

Changelog

v7.6.2

Date: 2025-06-03

Patch Changes

• create-react-router - Update tar-fs (#13675)

• react-router - (INTERNAL) Slight refactor of internal headers() function processing for use with RSC (#13639)

• react-router @react-router/dev - Avoid additional with-props chunk in Framework Mode by moving route module component prop logic from the Vite plugin to react-router (#13650)

• @react-router/dev - When future.unstable_viteEnvironmentApi is enabled and an absolute Vite base has been configured, ensure critical CSS is handled correctly during development (#13598)

• @react-router/dev - Update vite-node (#13673)

• @react-router/dev - Fix typegen for non-{.js,.jsx,.ts,.tsx} routes like .mdx (#12453)

• @react-router/dev - Fix href types for optional dynamic params (#13725)

  7.6.1 introduced fixes for href when using optional static segments, but those fixes caused regressions with how optional dynamic params worked in 7.6.0:

  // 7.6.0
  href("/users/:id?"); // ✅
  href("/users/:id?", { id: 1 }); // ✅
  
  // 7.6.1
  href("/users/:id?"); // ❌
  href("/users/:id?", { id: 1 }); // ❌
  

  Now, optional static segments are expanded into different paths for href, but optional dynamic params are not. This way href can unambiguously refer to an exact URL path, all while keeping the number of path options to a minimum.

  // 7.6.2
  
  // path: /users/:id?/edit?
  href("
  //    ^ suggestions when cursor is here:
  //
  //    /users/:id?
  //    /users/:id?/edit
  

  Additionally, you can pass params from component props without needing to narrow them manually:

  declare const params: { id?: number };
  
  // 7.6.0
  href("/users/:id?", params);
  
  // 7.6.1
  href("/users/:id?", params); // ❌
  "id" in params ? href("/users/:id", params) : href("/users"); // works... but is annoying
  
  // 7.6.2
  href("/users/:id?", params); // restores behavior of 7.6.0
  

Changes by Package

• create-react-router
• react-router
• @react-router/architect
• @react-router/cloudflare
• @react-router/dev
• @react-router/express
• @react-router/fs-routes
• @react-router/node
• @react-router/remix-config-routes-adapter
• @react-router/serve

Full Changelog: v7.6.1...v7.6.2