API Rate Limiting
API rate limiting is a technique used to control the number of requests a client can make to an API within a specified time period. It helps prevent abuse, ensure fair usage, and protect backend systems from being overwhelmed by excessive traffic. This is commonly implemented using algorithms like token bucket, leaky bucket, or fixed window counters to track and enforce limits.
Developers should implement API rate limiting to enhance security, maintain service availability, and comply with usage policies, especially in public APIs or multi-tenant systems. It is crucial for preventing denial-of-service attacks, managing resource consumption, and providing a consistent user experience by throttling excessive requests from individual clients or IP addresses.