valec3 Frontend Delivery Env Management
When to use this skill
- Managing environment variables
- Configuring for different environments
- Handling secrets
Workflow
- Create .env files
- Use environment-specific configs
- Never commit secrets
- Validate env vars at startup
- Document required vars
Instructions
.env Files
# .env.local (not committed)
VITE_API_URL=http://localhost:3000
# .env.production
VITE_API_URL=https://api.example.com
Usage
const apiUrl = import.meta.env.VITE_API_URL;
Validation
const requiredEnvVars = ['VITE_API_URL'];
requiredEnvVars.forEach(key => {
if (!import.meta.env[key]) {
throw new Error(`Missing env var: ${key}`);
}
});
Resources
- Prefix with VITE_ or NEXT_PUBLIC_
- Never commit secrets
- Validate at startup