messages/          ← Translation source files (JSON)
  en.json
  de.json
project.inlang/
  settings.json    ← Inlang project config (locales, plugins, sourceLanguageTag)
src/paraglide/     ← Compiler output (generated, gitignored)
  messages.js      ← Compiled message functions
  runtime.js       ← getLocale(), setLocale(), locales, sourceLocale
  server.js        ← paraglideMiddleware() for SSR

import * as m from "./paraglide/messages.js";

// Simple message — no params
m.hello_world();  // "Hello World"

// Parameterized message
m.greeting({ name: "Alice" });  // "Hello, Alice!"

// messages/en.json
{
  "hello_world": "Hello World",
  "greeting": "Hello, {name}!"
}

import { getLocale, setLocale, locales, sourceLocale } from "./paraglide/runtime.js";

getLocale();        // Current locale, e.g. "en"
setLocale("de");    // Change locale (triggers re-render in frameworks)
locales;            // ["en", "de", "fr"] — all configured locales
sourceLocale;       // "en" — the source language

m.greeting({ name: "Alice" }, { locale: "de" });  // Force German

// project.inlang/settings.json
{
  "baseLocale": "en",
  "locales": ["en", "de", "fr"],
  "plugin": "https://cdn.jsdelivr.net/npm/@inlang/paraglide-js@2/dist/plugin.js",
  "$imports": {
    "default": "https://cdn.jsdelivr.net/npm/@anthropic-ai/sdk@latest/dist/index.js"
  }
}

import { defineCompilerOptions } from "@inlang/paraglide-js";

export default defineCompilerOptions({
  strategy: ["url", "cookie", "preferredLanguage", "baseLocale"],
  urlPatterns: [{ pattern: "/:locale(en|de|fr)/:path*" }],
  cookieName: "NEXT_LOCALE",
});

// vite.config.ts
import { paraglideVitePlugin } from "@inlang/paraglide-js";

export default defineConfig({
  plugins: [paraglideVitePlugin()],
});

import { paraglideMiddleware } from "./paraglide/server.js";

app.use((req, res, next) => {
  paraglideMiddleware(req, ({ request, locale }) => {
    // locale is detected, getLocale() works in this scope
    return next();
  });
});