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Asp.Net Core / C#

.NET 9 Rate Limiting — Easy API Protection

- 05.12.25 | 05.12.25 - ErcanOPAK

Rate limiting used to be hard… now it’s literally one line.

app.UseRateLimiter(new()
{
    GlobalLimiter = PartitionedRateLimiter.CreateChained(
        PartitionedRateLimiter.CreateFixedWindow(10, TimeSpan.FromSeconds(5))
    )
});

🔒 Why You Need It

  • 🛡 Stops brute-force

  • 📉 Protects API throughput

  • ⚙ Cloud-native resilience

  • 🌍 Zero-config distributed support (Redis optional)

🧠 Bonus

Pair with Minimal APIs for super-light API services.

Related posts:

C# — List.ForEach() Is Slower Than foreach

.NET Core — Async Controllers Can Still Block Threads

C# LINQ Is Not Free

Post Views: 4

Post navigation

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