cefbb84230
* Fix for locale.split is not a function. Following from https://github.com/zeit/next.js/pull/5488 - Renamed languages to supportedLanguages - Firstly, accept languages based on supportedLanguages - And finally, accept a single language, if it returns false, the default of 'en' is used. I looked at the navigator library, which is used by 'accept', this should be a more solid solution, since we can now know that `const locale` is always a string. // Before (Sometimes returns an array as `const local`) const locale = accept.language(languages) || 'en' // After (Always returns a string) const locale = accept.language(accept.languages(supportedLanguages)) || 'en'; * Update server.js Update variable name.
54 lines
2 KiB
JavaScript
54 lines
2 KiB
JavaScript
// Polyfill Node with `Intl` that has data for all locales.
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// See: https://formatjs.io/guides/runtime-environments/#server
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const IntlPolyfill = require('intl')
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Intl.NumberFormat = IntlPolyfill.NumberFormat
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Intl.DateTimeFormat = IntlPolyfill.DateTimeFormat
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const {readFileSync} = require('fs')
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const {basename} = require('path')
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const {createServer} = require('http')
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const accepts = require('accepts')
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const glob = require('glob')
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const next = require('next')
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const port = parseInt(process.env.PORT, 10) || 3000
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const dev = process.env.NODE_ENV !== 'production'
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const app = next({dev})
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const handle = app.getRequestHandler()
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// Get the supported languages by looking for translations in the `lang/` dir.
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const supportedLanguages = glob.sync('./lang/*.json').map((f) => basename(f, '.json'))
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// We need to expose React Intl's locale data on the request for the user's
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// locale. This function will also cache the scripts by lang in memory.
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const localeDataCache = new Map()
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const getLocaleDataScript = (locale) => {
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const lang = locale.split('-')[0]
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if (!localeDataCache.has(lang)) {
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const localeDataFile = require.resolve(`react-intl/locale-data/${lang}`)
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const localeDataScript = readFileSync(localeDataFile, 'utf8')
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localeDataCache.set(lang, localeDataScript)
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}
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return localeDataCache.get(lang)
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}
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// We need to load and expose the translations on the request for the user's
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// locale. These will only be used in production, in dev the `defaultMessage` in
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// each message description in the source code will be used.
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const getMessages = (locale) => {
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return require(`./lang/${locale}.json`)
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}
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app.prepare().then(() => {
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createServer((req, res) => {
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const accept = accepts(req)
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const locale = accept.language(accept.languages(supportedLanguages)) || 'en'
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req.locale = locale
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req.localeDataScript = getLocaleDataScript(locale)
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req.messages = dev ? {} : getMessages(locale)
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handle(req, res)
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}).listen(port, (err) => {
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if (err) throw err
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console.log(`> Ready on http://localhost:${port}`)
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})
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})
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