lingui-best-practices

Lingui i18n in Next.js requires proper server and client initialization to avoid runtime locale errors. You must follow a specific locale activation order and configure the provider setup correctly within the App Router structure to ensure safe translation rendering.

Lingui macros standardize translation workflows. Use the Trans macro for JSX contexts, useLingui for component logic, and msg for non-JSX contexts. Following these macro usage guidelines prevents module-level translation errors and ensures correct extraction.

Extracting and compiling Lingui catalogs involves configuring your locales and running tooling commands to generate translation files. Correct catalog configuration and execution prevent misconfigured catalogs and ensure all translations are bundled into your JavaScript application.

Lingui supports Plural patterns for handling complex pluralization in i18n. Implementing them requires using the specific macro patterns provided by Lingui to ensure correct grammar across different locales without manual conditional logic in your React components.

Lingui locale initialization errors often stem from improper module-level translations or incorrect provider setup. Applying standardized best practices for configuration, locale activation order, and robust error handling resolves these common i18n runtime pitfalls.