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i18n basepaths

This example shows

Adding language basepaths to Routify

<!-- src/App.svelte -->
  import { Router } from "@roxi/routify";
  import { routes } from "../.routify/routes";

  // accepted languages
  const langs = ["en", "de", "fr", "es"];

  // first url fragment.
  const fragment = location.pathname.split("/")[1];

  // if fragment is an accepted language, use it as a prefix.
  const lang = langs.includes(fragment) ? `/${fragment}` : "";

  const config = {
    urlTransform: {
      //add the language prefix for the browser
      apply: (url) => lang + url,
      //remove the language prefix for Routify
      remove: (url) => url.replace(lang, ""),

<Router {routes} {config} />

Generating i18n URLs for static site generation (optional)

Routify provides a list of its routes in urlIndex.json. For each route, we need to create an additional route for each language. To do this we create a wrapper i18n.urls.js. For simplicity we put it in the project root.

/** i18n.urls.js */
const urls = require('./.routify/urlIndex.json')
const langs = ['/en', '/de', '/fr', '/es']
// we map each url with an array of corresponding i18n urls.
// Notice flat() at the end - we don't want an array of arrays.
module.exports = => => lang + url)).flat()

Use our new i18n.urls.js

Lastly, for static export we use Spank, which is already included in the starter template.

/** package.json */
  "spank": {
    "sitemap": "i18n.urls.js"

Spank uses configent, so it can also be configured through CLI, environment, spank.config.js etc.

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