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Aleksei Aleinikov
Aleksei Aleinikov

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🍪 Go + Cookies: Secure, Stateless, Scalable (2025 Edition)

Cookies aren’t just for sessions — they’re your app’s memory. But they must be secure.

🔐 What you’ll learn:

  • Set cookies with HttpOnly, Secure, and SameSite
  • Store lookup keys only — real data lives on the backend
  • Encrypt & sign with securecookie (AES + MAC)
  • CSRF protection done right
  • Stateless vs session auth: when to pick JWT, when not

💡 Bonus tips:

  • Kill a cookie with MaxAge: -1
  • How domains & Path influence visibility
  • Avoid cookie tossing attacks

https://levelup.gitconnected.com/how-to-work-with-http-cookies-in-go-in-2025-a-practical-guide-f1e5732404e7

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