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Vite - Kit Routes

🪧 How to - vite-plugin-kit-routes

💡

KitQL itself is not a library, it’s “nothing” but a collection of standalone libraries.

vite-plugin-kit-routes automatically updates route references in SvelteKit projects, crucial for large applications where manual tracking of route changes is error-prone. It simplifies development by ensuring all route links are consistent and up-to-date, saving time and preventing broken links.

No more 🤞, now be confident ✅!

By default, no Configuration is requiered. Just Install the plugin, and use objects/functions available in your $lib/ROUTES.ts generated file (always in sync).

Note that this plugin is meant to be used with typescript today. If you want a JSDoc version of it, please open an issue.

Showcase

Examples

First example
<script lang="ts">
  import { route } from '$lib/ROUTES'
</script>
 
<!-- 🤞 before, hardcoded string, error prone -->
<a href="/terms-and-conditions">Terms</a>
 
<!-- ✅ after, typechecked route, no more errors -->
<a href={route('/terms-and-conditions')}>Terms</a>
<!-- 
   If you change location of `/terms-and-conditions/+page.svelte`: 
     - the key '/terms-and-conditions' will not exist
     - `route` function will yell! 
-->
With 1 route param
<script lang="ts">
  import { route } from '$lib/ROUTES'
</script>
 
<!-- 🤞 before, hardcoded string, error prone -->
<a href="/site/123">Go to site</a>
 
<!-- ✅ after, typechecked route, no more errors -->
<a href={route('/site/[id]', { id: 123 })}>Go to site</a>
With 1 Search Param*
<script lang="ts">
  import { route } from '$lib/ROUTES'
</script>
 
<!-- 🤞 before, hardcoded string, error prone -->
<a href="/site/123?limit=3">Go to site</a>
 
<!-- ✅ after, typechecked route, no more errors -->
<a href={route('/site/[id]', { id: 123, limit: 3 })}>Go to site</a>
With a named action
<script lang="ts">
  import { enhance } from '$app/forms'
  import { page } from '$app/stores'
  import { route } from '$lib/ROUTES'
 
  const id = $page.params.id
 
  // 🤞 before, hardcoded string, error prone
  const action =  `/site/${id}?/send`
 
  // ✅ after, typechecked route, no more errors
  const action = route('send /site/[id]', { id })
</script>
 
<form method="POST" use:enhance {action}>
  <button>Check</button>
</form>
LINKS - 1 reference in config*
<script lang="ts">
  import { route } from '$lib/ROUTES'
</script>
 
<!-- 🤞 before, hardcoded string, error prone -->
<a href="https://twitter.com/jycouet">Twitter</a>
 
<!-- ✅ after, typechecked route, no more errors -->
<a href={route('twitter')}>Twitter</a>
LINKS - with params & search params*
<script lang="ts">
  import { route } from '$lib/ROUTES'
</script>
 
<!-- 🤞 before, hardcoded string, error prone -->
<img src="https://www.gravatar.com/avatar/jycouet?s=20&d=identicon" alt="logo" />
 
<!-- ✅ after, typechecked route, no more errors -->
<img src={route('gravatar', { str: 'jycouet', s: 20 })} alt="logo" />

* You can add a lot of configs to specify search params, types, …

Installation

npm i -D vite-plugin-kit-routes

Demo

Local

npm create kitql@latest --template kit-routes

Online

Configuration

Add the plugin like this:

vite.config.js
import { sveltekit } from '@sveltejs/kit/vite'
import { kitRoutes } from 'vite-plugin-kit-routes'
 
/** @type {import('vite').UserConfig} */
const config = {
  plugins: [
    sveltekit(),
    // ✅ Add the plugin
    kitRoutes()
  ]
}
 
export default config

It will generate a file ./src/lib/ROUTES.ts at the start of your dev server & any update of any of your +page.svelte | +server.ts | +page.server.ts.

Side Notes

💡
You can make use of ctrl + space to discover config options. 🎉
  • What kind of format you want to use ?

You can choose anyway 😜

vite.config.ts
kitRoutes({
  /**
   * // format: `route(path)`                    -> default <-
   * route("/site/[id]", { id: 7, tab: 'info' })
   *
   * // format: `route(symbol)`
   * route("site_id", { id: 7, tab: 'info' })
   *
   * // format: `variables`                      (best for code splitting & privacy)
   * PAGE_site_id({ id: 7, tab: 'info' })
   *
   * // format: `object[path]`
   * PAGES["/site/[id]"]({ id: 7, tab: 'info' })
   *
   * // format: `object[symbol]`
   * PAGES.site_id({ id: 7, tab: 'info' })
   *
   * // you have also `route(path) & object[path]` AND `route(symbol) & object[symbol]`
   * // if you want everything to be exported
   */
  format: 'route(path)'
})
  • In addition to formats, you can swich on a flag to have even shorter functions. This applies when you have only 1 required param.
vite.config.ts
kitRoutes({
  /**
   * default is: `false`
   *
   * If you have only 1 required param, it will be a direct arg (not part of an object).
   *
   * route("/site/[id]", 7)       route(path)
   * route("site_id", 7)          route(symbol)
   * PAGE_site_id(7)              variables
   * PAGES["/site/[id]"](7)       object[path]
   * PAGES.site_id(7)             object[symbol]
   */
  format_short: true
})
  • You like nice and formated files? You can add any cmd after the generation.

Here is an example of prettier

vite.config.ts
kitRoutes({
  post_update_run: 'npm exec prettier ./src/lib/ROUTES.ts -- -w'
})
  • You can specify a searchParam for some paths (you can also do it globally)
vite.config.ts
kitRoutes({
  PAGES: {
    '/site': {
      explicit_search_params: {
        limit: { type: 'number' }
      }
    }
  }
})
  • You can narrow down the type of params (You can also change "string | number" default globally)
vite.config.ts
kitRoutes({
  PAGES: {
    '/site/[id]': {
      params: {
        id: { type: 'string' }
      }
    }
  }
})
  • You want better typings? Add the KIT_ROUTES type… It will be crazy good! I’m not sure you are ready! Under PAGES, SERVERS and ACTIONS, you will get autocompletion for route config. 🤯
vite.config.ts
import { kitRoutes } from 'vite-plugin-kit-routes'
 
import type { KIT_ROUTES } from '$lib/ROUTES'
 
kitRoutes<KIT_ROUTES>({
  // Conf
})
  • You want to use some LINKS in different places in your app? Let’s show you what we can do:
vite.config.ts
kitRoutes({
  LINKS: {
    // reference to a hardcoded link
    twitter: 'https://twitter.com/jycouet',
    // ✅ <a href={LINKS.twitter}>Twitter</a>
 
    // reference to link with params! (Like svelteKit routes add [ ] to specify params)
    twitter_post: 'https://twitter.com/[name]/status/[id]',
    // ✅ <a href={LINKS.twitter_post({ name: 'jycouet', id: '1727089217707159569' })}>Twitter Post</a>
 
    // reference to link with params & search params!
    gravatar: {
      href: 'https://www.gravatar.com/avatar/[str]',
      explicit_search_params: {
        s: { type: 'number', default: 75 },
        d: { type: '"retro" | "identicon"', default: '"identicon"' }
      }
    }
    // ✅ <img src={LINKS.gravatar({ str: 'jycouet', s: 20 })} alt="logo" />
  }
})

Let me know what I forgot to add on TwiX, or what you would like to see in the future. 🙏

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