Rate Limiting & Brute-Force Protection
Defend your SaaS auth and APIs from abuse with rate limiting, account lockouts, and exponential backoff using a fast store like Redis.
Why Rate Limit?
Without limits, attackers can hammer your login endpoint to guess passwords, scrape data, or run up costs on metered APIs. Rate limiting caps how many requests a client can make in a window.
Identifying the Client
Limits are keyed on something that identifies the caller: an IP address, a user ID, or an API key. Choose the key based on what you are protecting.
const key = 'login:' + (userId ?? clientIp);All lessons in this course
- OAuth 2.0 Integration
- Multi-Factor Authentication (MFA)
- Role-Based Access Control (RBAC)
- Rate Limiting & Brute-Force Protection