Express.js i18n Middleware

i18n-express is a lightweight internationalization middleware designed for Express.js applications, currently at version 1.1.3. It facilitates basic language switching and content localization by reading language-specific JSON files from a designated directory. The middleware determines the user's preferred language based on a hierarchy: a configured cookie, a URL query parameter, browser `Accept-Language` headers, or a default language. Once determined, it exposes a `textsVarName` (default: `texts`) variable to your view engine (e.g., EJS, Handlebars) containing the translated strings for the active language, along with a `lang` variable indicating the current language. Its primary differentiator is its extreme simplicity and file-based approach, avoiding complex CLDR data or advanced pluralization rules, making it suitable for very straightforward localization needs. The package has not seen updates in approximately seven years, suggesting it is no longer actively maintained and new releases are highly unlikely.