Rate limiting is a crucial practice for managing the flow of traffic in web services, ensuring stability, security, and an equitable experience for all users. This technique is particularly useful in environments where a large number of requests can overwhelm server resources.
Rate Limiting refers to the practice of controlling the rate of requests that a client can make to a web service within a specified time period. This is achieved by setting limits on the number of allowed requests within specific intervals, such as per second, minute, or hour. When a client reaches or exceeds this limit, subsequent requests may be rejected, delayed, or handled according to the configured policies.
- Abuse Prevention: Rate Limiting is an effective measure to prevent abuses, such as denial-of-service attacks (DDoS) and excessive data scraping.
- Protection Against Exploitation: Limiting the request rate prevents the excessive exploitation of APIs and services, reducing exposure to vulnerabilities.
- Equity in Access: Ensures a fair distribution of resources, preventing a single client from monopolizing bandwidth or server resources.
- Service Stability: Prevents sudden traffic spikes that could lead to server failures, improving the overall stability of the service.
To get started, it's necessary to add the package.
dotnet add package Microsoft.AspNetCore.RateLimitingThen configure your Program.cs.
Then add the dependencies
On the first execution, it will allow.
On the second one, it won't allow because we configured the limit to be 1 request, and it will only permit another one after 10 seconds. This configuration is set per IP and client.
