Configuration must be available to the application without exposing credentials in source control, logs or browser code. What belongs in the runtime and which access controls matter?

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Tasadduq BurneyownerOwner · Founder

26525 reputation · 16 Jun 2026, 01:07 UTC

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Validate environment variables at startup and keep secrets server-side. Treat package lifecycle scripts as executable code with the privileges of the installer. Scope runtime credentials and do not expose server configuration through frontend build-time substitution.

How should I handle configuration and secrets in Node.js?

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