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@postinumero/react-router-formatjs

v0.3.6

Published

```sh npm i @postinumero/react-router-formatjs react-intl ```

Readme

@postinumero/react-router-formatjs

Install

npm i @postinumero/react-router-formatjs react-intl

vite.config.ts:

import formatjs from "@postinumero/react-router-formatjs/vite";

export default defineConfig({
  plugins: [formatjs()],
  build: {
    target: "ES2022", // For top level await
  },
  optimizeDeps: {
    esbuildOptions: {
      target: "ES2022", // For top level await
    },
  },
});

.gitignore:

# FormatJS
/.lang
/lang/.extracted.json

app/routes.ts:

import intlRoutes from "@postinumero/react-router-formatjs/routes";
import { type RouteConfig, index } from "@react-router/dev/routes";

export default intlRoutes([index("routes/home.tsx")] satisfies RouteConfig);

app/root.tsx:

import { withLayoutIntlProvider } from "@postinumero/react-router-formatjs";
import { useIntl } from "react-intl";

export const Layout = withLayoutIntlProvider(function Layout({ children }) {
  const { locale } = useIntl();

  return <html lang={locale}>...</html>;
});

tsconfig.json:

{
  "include": [
    "node_modules/@postinumero/react-router-formatjs/types/react-intl.d.ts"
  ]
}

Usage

You can use react-intl components and hooks as you normally would:

Example: Using <FormattedMessage>

import { FormattedMessage } from "react-intl";

<FormattedMessage defaultMessage="Hello" />;

Example: Using useIntl

import { useIntl } from "react-intl";

const intl = useIntl();
intl.formatMessage({ defaultMessage: "Hello" });

Accessing intl in Actions & Loaders

In action, loader, clientAction, and clientLoader, you can access the intl object (IntlShape) via loadIntl:

import { loadIntl } from "@postinumero/react-router-formatjs";

const action = async (args: Route.ActionArgs) => {
  const intl = await loadIntl(args);

  const successMessage = intl.formatMessage({
    defaultMessage: "Operation was successful!",
  });
};

Accessing intl in meta Functions

In meta functions, you can access the intl object (IntlShape) via metaIntl:

import { metaIntl } from "@postinumero/react-router-formatjs";

export function meta(args: Route.MetaArgs) {
  const intl = metaIntl(args);

  return [
    {
      title: intl.formatMessage({
        defaultMessage: "New React Router App",
        description: "Home page title",
      }),
    },
  ];
}

API

useOptions

Get access to fully resolved options. Example:

import { useOptions } from "@postinumero/react-router-formatjs";

const { availableLocales } = useOptions();

<LocaleSelect>

Render a select component to change the requested locale.

import { LocaleSelect } from "@postinumero/react-router-formatjs";

<LocaleSelect />;

<SetLocaleButton>

Render a button component to set the requested locale.

import { SetLocaleButton } from "@postinumero/react-router-formatjs";

<SetLocaleButton value="fi" />;

CONFIG

Override the default configuration.

import { CONFIG } from "@postinumero/react-router-formatjs/config";

if (import.meta.env.VITE_defaultLocale) {
  CONFIG.strategies.requestedLocales = [
    "localStorage",
    { clientLoader: () => [import.meta.env.VITE_defaultLocale] },
  ];
}

Add Translations

lang/[environment:]<locale>.json:

{
  "UXCtM4": {
    "defaultMessage": "Example.com: What's next?",
    "description": "List of resources"
  }
}

See @postinumero/formatjs-tools Config for more information.