blob: 1c8c988db1bdd7bc99d6feddefe07b6c52b9803c (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
import { detectLocale, i18n, isLocale } from "$i18n/i18n-util";
import { loadAllLocales } from "$i18n/i18n-util.sync";
import type { Handle, RequestEvent } from "@sveltejs/kit";
import { initAcceptLanguageHeaderDetector } from "typesafe-i18n/detectors";
loadAllLocales();
const L = i18n();
export const handle: Handle = async ({ event, resolve }) => {
// read language slug
const [, lang] = event.url.pathname.split("/");
// redirect to base locale if no locale slug was found
if (!lang) {
const locale = getPreferredLocale(event);
return new Response(null, {
status: 302,
headers: { Location: `/${locale}` },
});
}
// if slug is not a locale, use base locale (e.g. api endpoints)
const locale = isLocale(lang) ? (lang as Locales) : getPreferredLocale(event);
const LL = L[locale];
// bind locale and translation functions to current request
event.locals.locale = locale;
event.locals.LL = LL;
// replace html lang attribute with correct language
return resolve(event, { transformPageChunk: ({ html }) => html.replace("%lang%", locale) });
};
const getPreferredLocale = ({ request }: RequestEvent) => {
// detect the preferred language the user has configured in his browser
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language
const acceptLanguageDetector = initAcceptLanguageHeaderDetector(request);
return detectLocale(acceptLanguageDetector);
};
|
