Major: Missing Environment Variable Validation

[AliiiBenn]

Priority

🟠 Major - Configuration & Reliability

Locations

• • • All API routes using environment variables

Problem Description

Environment variables are used directly without validation:

\

Impact

• Crash on startup: Missing required variables cause cryptic errors
• Silent failures: Empty strings () allow app to start but fail later
• Poor DX: Errors appear at runtime instead of startup
• Production risk: Deploying with missing config is possible

Expected Behavior

Create \ with Zod validation to ensure all required environment variables are present and valid at startup.

Related Issues

• Critical: Syntax Error in auth.ts Configuration #3 - Inconsistent .env.example
• Minor: No API Documentation (OpenAPI/Swagger) #21 - Add structured logging

Steps to Fix

1. Install \ if not present (already in package.json)
2. Create \ with validation schema
3. Update all files to use validated env vars
4. Add .env template with all variables
5. Document each variable in docs/SETUP.md

Benefits

• Fail fast: App won't start without proper config
• Type safety: All env vars are typed
• Documentation: Schema serves as documentation
• IntelliSense: Autocomplete for all env vars
• Validation: Zod ensures format correctness (URLs, etc.)

Additional Context

This is a best practice for Node.js applications and should be one of the first things done when setting up a new project.