Build-Time Environment Variable Validation

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

Implement Environment Validation

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

See:

• Resource: env-validation in Fullstack Recipes
• URL: https://fullstackrecipes.com/recipes/env-validation

Validating Configs on Server Start

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: