Production Login API Explained #coding #frontendcourse #api #javascript #react #reactjs #loginapi

Most developers write login APIs incorrectly.

A production-grade login API requires proper validation, security, and token management.

In this video, I explain how a real login API works step-by-step:

✔ Input validation (email & password)
✔ Rate limiting to prevent brute-force attacks
✔ Fetching user from database
✔ Password verification (bcrypt / argon2)
✔ Account checks (locked, unverified, failed attempts)
✔ Generating access & refresh tokens
✔ Token expiration handling
✔ Session storage for logout & revocation

Architecture includes:
Client → API Gateway → Auth Service → DB → Cache → JWT Tokens

This is how secure authentication systems are built in production.

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