env-validation

Validate environment variables on server start and before builds. Catch missing or invalid variables early with clear error messages.

Some environment variables are read internally by packages rather than passed as arguments. To catch missing variables early instead of at runtime, import your configs in instrumentation.ts:

The side-effect imports trigger configSchema validation immediately when the server starts. If any required environment variable is missing, the server fails to start with a clear error rather than failing later when the code path is executed.

Проверьте переменные среды при запуске сервера и перед сборкой. Выявляйте отсутствующие или недопустимые переменные на ранней стадии с помощью четких сообщений об ошибках. Источник: andrelandgraf/fullstackrecipes.