Vue-router-demi NPM

Vue Router Demi

Creates Universal Library for Vue Router 3 & 4

Strategies

vue-router 3.6: exports from vue-router/composables (Composition API is built-in).
vue-router >=4.0: exports from vue-router.

Usage

Install this as your plugin's dependency:

npm i vue-router-demi
# or
yarn add vue-router-demi
# or
pnpm i vue-router-demi

Add vue-router to your plugin's peer dependencies

{
  "peerDependencies": {
    "vue-router": "^3.6.0 || >=4.0.0"
  }
}

Import everything related to VueRouter from it, it will redirect to vue-router@3.6/composables or vue-router@4 based on users' environments.

import { useRoute, useRouter, useLink } from 'vue-router-demi'

Publish your plugin and all is done!

When using with Vite, you will need to opt-out the pre-bundling to get vue-router-demi work properly by
// vite.config.js
export default defineConfig({
  optimizeDeps: {
    exclude: ['vue-router-demi']
 }
})

Extra APIs

`isVueRouter3` `isVueRouter4`

import { isVueRouter3, isVueRouter4 } from 'vue-router-demi'

if (isVueRouter3) {
  // VueRouter 3 only
} else {
  // VueRouter 4 only
}

CLI

Manually Switch Versions

To explicitly switch the redirecting version, you can use these commands in your project's root.

npx vue-router-demi-switch 3.6
# or
npx vue-router-demi-switch 4

Package Aliasing

If you would like to import vue-router under an alias, you can use the following command

npx vue-router-demi-switch 3.6 vue-router3
# or
npx vue-router-demi-switch 4 vue-router4

Auto Fix

If the postinstall hook doesn't get triggered or you have updated the VueRouter version, try to run the following command to resolve the redirecting.

npx vue-router-demi-fix

Isomorphic Testings

You can support testing for both versions by adding npm alias in your dev dependencies. For example:

{
  "scripts": {
    "test:3": "vue-router-demi-switch 3.6 vue-router3 && vitest",
    "test:4": "vue-router-demi-switch 4 && vitest",
  },
  "devDependencies": {
    "vue-router": "^4.1.6",
    "vue-router3": "npm:vue-router@3.6.5"
  },
}

{
  "scripts": {
    "test:3": "vue-demi-switch 3.6 && vitest",
    "test:4": "vue-demi-switch 4 vue-router4 && vitest",
  },
  "devDependencies": {
    "vue-router": "^3.6.5",
    "vue-router4": "npm:vue-router@4.1.6"
  },
}