i18n wrapper and Koa middleware for Lad. 

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  "description": "i18n wrapper and Koa middleware for Lad",

  "author": "Nick Baugh <niftylettuce@gmail.com> (http://niftylettuce.com/)",

    "url": "https://github.com/ladjs/i18n/issues",

    "Nick Baugh <niftylettuce@gmail.com> (http://niftylettuce.com/)",

    "shadowgate15 (https://github.com/shadowgate15)"

    "@commitlint/config-conventional": "^17.0.3",

  "homepage": "https://github.com/ladjs/i18n",

    "url": "https://github.com/ladjs/i18n"

    "lint": "xo --fix && remark . -qfo && fixpack",

    "test": "cross-env NODE_ENV=test nyc ava"

# [**@ladjs/i18n**](https://github.com/ladjs/i18n)

[![build status](https://img.shields.io/travis/ladjs/i18n.svg)](https://travis-ci.org/ladjs/i18n)

[![build status](https://github.com/ladjs/i18n/actions/workflows/ci.yml/badge.svg)](https://github.com/ladjs/i18n/actions/workflows/ci.yml)

[![code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)

[![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier)

[![made with lass](https://img.shields.io/badge/made_with-lass-95CC28.svg)](https://lass.js.org)

[![license](https://img.shields.io/github/license/ladjs/i18n.svg)]()

> i18n wrapper and Koa middleware for Lad

  * [i18n.translate(key, locale, ...args)](#i18ntranslatekey-locale-args)

  * [i18n.translateError(key, locale, ...args)](#i18ntranslateerrorkey-locale-args)

  * [i18n.middleware(ctx, next)](#i18nmiddlewarectx-next)

  * [i18n.redirect(ctx, next)](#i18nredirectctx-next)

* [Redirect exceptions](#redirect-exceptions)

const phrases = { 'HELLO': 'Hello there!' };

Returns translation for phrase `key` with the given `locale`.  Optionally pass additional arguments, e.g. format specifier replacements for use in the phrase.  For example if you have a phrase of "An error occurred %s" with a key of "ERROR\_OCCURRED", and you use it as such `i18n.translate('ERROR_OCCURRED', 'en', 'some error message')` then it would return `'An error occurred some error message`.

### i18n.translateError(key, locale, ...args)

Returns the same string as `i18n.translate`, but wrapped with a new `Error` object with a property `no_translate` set to `true`.

This is an extremely useful method if you are using `koa-better-error-handler` package in the [Lad][] framework – as it will prevent a double translation from occurring.

This middleware uses custom locale detection (in order of priority):

1. Check URL (e.g. if `/de` or `/de/` then it's a `de` locale - as long as `de` is a supported locale)

2. Use the custom function (if provided by the `detectLocale` parameter) for locale detection

3. Check the `"locale"` cookie value (or whatever the `cookie` option is defined as)

* `ctx.pathWithoutLocale` - the `ctx.path` without the locale in it (this is used by [koa-meta][])

* `ctx.request` - with all of `i18n` API methods (e.g. `ctx.request.t`, `ctx.request.tn`, ...)

* `ctx.locale` - set to the value of `ctx.request.locale` (the current user's locale)

* `ctx.state` - with all of `i18n` API methods (e.g. `ctx.request.t`, `ctx.request.tn`, ...)

* `ctx.state.l` - a shorthand method that accepts a path and returns a localized path (e.g. `ctx.state.l('/contact')` will output `/en/contact` if the locale is "en")

* `ctx.state.availableLanguages` (Array) - which is useful for adding a dropdown to select from an available language

* `ctx.state.currentLanguage` (String) - the current locale's language in native language using [country-language][]'s `getLanguage` method

* `ctx.translate` (Function) - a helper function for calling `i18n.api.t` or `i18n.t` to translate a given phrase by its property key name from the `phrases` object option (same as `i18n.translate` except it throws a `ctx.throw` error using [Boom][])

* `ctx.translateError` (Function) - same as `ctx.translate` except it returns an Error object with a property `no_translate` set to `true` (similar to `i18n.translateError`)

If the given locale was not available then it will redirect the user to the detected (or default/fallback) locale.

> Inspired by [node][]'s [language support][language-support].

Redirects user with permanent `302` redirect to their detected locale if a valid language was not found for them.

**NOTE:** As of v1.2.2 we have added a `ignoredRedirectGlobs` option you can pass to `new I18N({ ... })` which will ignore these paths for locale redirection.  This is incredibly useful if you are using authentication providers and the `passport` library, e.g. you want to set `/auth/github/ok` as the callback URL for GitHub, but a redirect to `/en/auth/github/ok` would have occurred, thus causing authentication to fail due to a bad code.  In this case, you would set `{ ignoredRedirectGlobs: [ '/auth/**/*' ] }` or simply `[ '/auth/google/ok' ]`.  This package uses [multimatch][] internally which supports an Array, therefore you could negate certain paths if needed.  See the documentation for [multimatch][] for more insight.

It also sets the cookie `locale` for future requests to their detected locale.

This also stores the `last_locale` (or whatever you configure the property name to be in the config option `lastLocaleField`) for a user via `ctx.state.user.save()`.

**NOTE:** As of v3.0.0 we have added a `redirectIgnoresNonGetMethods` (Boolean) option (defaults to `true`) which you can pass to `new I18N({ ... })` which will ignore non-GET methods on redirection.

		{
		"name": "@ladjs/i18n",
		"description": "i18n wrapper and Koa middleware for Lad",
		"version": "8.0.0",
		"version": "8.0.1",
		"author": "Nick Baugh <niftylettuce@gmail.com> (http://niftylettuce.com/)",
		@@ -6,0 +6,0 @@ "bugs": {

Fixed alerts

Improved metrics