React Environment Variables & Config Management 🔐 | Secure & Scalable Setup for Dev & Prod
Confused about .env files or leaking API keys in your React app? 🤯
In this video, you'll master environment variables and configuration management in React — the right way.
We’ll cover everything from basic .env file setup to secure deployment configurations for platforms like Vercel, Netlify, and Vite. Learn how to build apps that are secure, scalable, and easy to manage across environments.
Perfect for frontend developers, full-stack engineers, and teams building production-grade React apps.
✅ Topics Covered:
What are environment variables and why they matter
How to define .env files for development and production
Naming conventions: REACT_APP_ vs VITE_
Accessing variables in React and Vite
Avoiding security leaks by managing secrets properly
Switching environments on Vercel, Netlify, Firebase
Advanced tools like dotenv, cross-env, and Vault
Best practices to follow in every React project
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⏰ Timestamps / Chapters
0:00 Intro – Why config management is crucial
0:40 What are Environment Variables?
1:30 Common use cases in React apps
2:10 Where to define them (.env files)
3:00 CRA naming rule: REACT_APP_
4:00 Accessing variables in code (CRA vs Vite)
5:00 Vite config with VITE_ and import.meta.env
6:00 Protecting secrets in React
7:00 Client vs Server variables
7:40 Example .env.development vs .env.production
8:30 How hosting platforms manage environment variables
9:30 Advanced tools: dotenv, Vault, cross-env
10:30 Best practices & security tips
11:30 Summary – Setup configs like a pro
🔖 Tags/Hashtags
#ReactJS #EnvironmentVariables #EnvFile #Vercel #Netlify #ReactConfig #ReactSecurity #Dotenv #FrontendTips #ReactBestPractices #ViteJS #ReactHosting #Coding4Dev