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Update middleware logic (#263)

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Luke Vella 2022-07-29 15:17:18 +01:00 • committed by GitHub
parent e3ef812ca3
commit 770d624b02
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4 changed files with 51 additions and 31 deletions
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40
src/middleware.ts
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@ -1,27 +1,35 @@
import languageParser from "accept-language-parser";
import { NextRequest, NextResponse } from "next/server";
const supportedLocales = ["en", "es", "de", "fr", "pt-BR", "sv"];
const supportedLocales = ["en", "es", "de", "fr", "sv", "pt-BR"];
export function middleware({ headers, cookies, nextUrl }: NextRequest) {
const language =
cookies.get("NEXT_LOCALE") ??
(headers
.get("accept-language")
?.split(",")?.[0]
.split("-")?.[0]
.toLowerCase() ||
"en");
const newUrl = nextUrl.clone();
if (supportedLocales.includes(language)) {
newUrl.pathname = `/${language}${newUrl.pathname}`;
} else if (language === "pt") {
// For now we send all portuguese language requests to pt-BR
newUrl.pathname = `/pt-BR${newUrl.pathname}`;
// Check if locale is specified in cookie
const localeCookie = cookies.get("NEXT_LOCALE");
if (localeCookie && supportedLocales.includes(localeCookie)) {
newUrl.pathname = `/${localeCookie}${newUrl.pathname}`;
return NextResponse.rewrite(newUrl);
} else {
// Check if locale is specified in header
const acceptLanguageHeader = headers.get("accept-language");
if (acceptLanguageHeader) {
const locale = languageParser.pick(
supportedLocales,
acceptLanguageHeader,
);
if (locale) {
newUrl.pathname = `/${locale}${newUrl.pathname}`;
return NextResponse.rewrite(newUrl);
}
}
}
return NextResponse.rewrite(newUrl);
return NextResponse.next();
}
export const config = {