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Launch your next SaaS in record time with Makerkit, a React SaaS Boilerplate for Next.js and Supabase.

Makerkit is a product of Makerkit Pte Ltd (registered in the Republic of Singapore)Company Registration No: 202407149CFor support or inquiries, please contact us

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  • Global Configuration
    • Environment Variables
    • Feature Flags
  • Server Actions
    • Sending CSRF Token to Actions
    • Server Actions Error Handling
  • The Makerkit SDK
    • User SDK
    • Organization SDK
    • Organization Subscription SDK
    • Data Loader SDK
  • Architecture and Folder Structure
    • Structure your Application
    • Data Model
    • Adding API Routes
    • Change Authentication strategy
    • Fetching the signed in User
    • Reading Records from Postgres
    • Creating a Record
    • Seeding Local Data
    • Introduction
    • Configuring Plans
    • Project Configuration
    • Updating the Navigation menu
    • Adding a new translation string
    • Supabase is not starting
    • Calling API Routes from the client
    • Adding Pages
    • Updating the Sidebar menu
    • Setup oAuth
    • Fetching the selected Organization
    • Resetting the local DB
    • Running the Stripe Webhook locally
    • Branding
    • Setting a Default Language
    • Supabase is not stopping
    • Dark Theme
    • Theming
    • API Routes vs Server Actions
    • Generating Database Types
    • Updating the Logo
    • Adding a new language in the Next.js Supabase SaaS Kit
    • Tables/Functions not found
    • Updating the Fonts
    • Adding Pages
    • Adding a new translation file
    • Contentlayer gets stuck
    • Guarding Pages
    • Using Lemon Squeezy instead of Stripe
    • Updating the Favicons
    • Using the Language Switcher
    • Dynamic server usage error
    • Environment variables
    • Detect current Locale
    • 403 error with API/Actions
    • Setting up Emails
This documentation is for a legacy version of Next.js and Supabase. For the latest version, please visit the Next.js and Supabase V2 documentation

Detecting the Currently selected locale | Next.js Supabase SaaS Kit

How to detect the currently selected locale so that you can use it in your React components.

To detect the currently selected locale from the client, you can use the useTranslation hook from react-i18next.

tsx
import { useTranslation } from 'react-i18next';
function Component() {
const { i18n } = useTranslation();
const { language } = i18n;
// use language here
}

Detecting the locale from the server

When rendering on the server, you can use the getLanguageCookie object to detect the locale. This value represents the locale that was selected by the user.

NB: it can be null if the user has not selected a locale yet or if the user has never selected a locale. In this case, you should use the default locale.

tsx
import getLanguageCookie from '~/i18n/get-language-cookie';
import configuration from '~/configuration';
function ServerComponent() {
const locale = getCurrentLocale();
// use locale here
}
function getCurrentLocale() {
return getLanguageCookie() ?? configuration.site.locale;
}