RateLimit.Throttlr 1.0.0

.NET Standard 2.1

dotnet add package RateLimit.Throttlr --version 1.0.0

NuGet\Install-Package RateLimit.Throttlr -Version 1.0.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="RateLimit.Throttlr" Version="1.0.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="RateLimit.Throttlr" Version="1.0.0" />
                    

                            Directory.Packages.props

<PackageReference Include="RateLimit.Throttlr" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add RateLimit.Throttlr --version 1.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: RateLimit.Throttlr, 1.0.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package RateLimit.Throttlr@1.0.0

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=RateLimit.Throttlr&version=1.0.0
                    

                            Install as a Cake Addin

#tool nuget:?package=RateLimit.Throttlr&version=1.0.0
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

RateLimit.Throttlr

A flexible and customizable rate limiting library for modern and legacy .NET APIs.

Overview

RateLimit.Throttlr supports multiple rate limiting algorithms:

Fixed Window
Sliding Window
Token Bucket

Installation

Install via NuGet:

   dotnet add package RateLimit.Throttlr

Usage Example

Register in DI

using RateLimit.Throttlr.Core;
using RateLimit.Throttlr.Extensions;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddControllers();

// Add rate limiting services
builder.Services.AddRateLimiting(
    new RateLimitPolicy(
        name: "global",                        // unique policy name
        limit: 5,                               // max 5 requests
        window: TimeSpan.FromSeconds(10)       // per 10 seconds
    ),
    limiterType: RateLimiterType.SlidingWindow // Options: FixedWindow | SlidingWindow | TokenBucket
);

Configure Middleware

app.UseRouting();

app.UseRateLimiting(); // Apply rate limiting

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllers();
});

app.Run();

Example Controller

namespace DemoAPI.Controllers
{
    [ApiController]
    [Route("[controller]")]
    public class WeatherForecastController : ControllerBase
    {
        [HttpGet("hello")]
        public IActionResult GetHello()
        {
            return Ok(new
            {
                message = "Hello, world!",
                timestamp = DateTime.UtcNow
            });
        }
    }
}

Behavior:

Each IP (or custom partition key) can only make 5 requests per 10 seconds. Exceeding the limit returns HTTP 429 Too Many Requests. Standard headers: X-RateLimit-Limit: total allowed requests X-RateLimit-Remaining: requests left in the current window X-RateLimit-Reset: Unix timestamp when window resets Retry-After: seconds to wait before next allowed request

Supported Algorithms

Limiter Type Description FixedWindow Counts requests per fixed window interval SlidingWindow Smooths counts using weighted previous window TokenBucket Allows bursts and steady refill rate

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.
.NET Core	netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard2.1 is compatible.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.1
- Microsoft.AspNetCore.Http.Abstractions (>= 2.3.0)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.8)

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
1.0.0	187	8/30/2025

Release Notes — RateLimit.Throttlr

Version: 1.0.0
Release Date: 2025-08-30

Overview

RateLimit.Throttlr is a flexible and customizable rate limiting library for modern and legacy .NET APIs. This release introduces core functionality for controlling API request rates using multiple algorithms, with easy integration into ASP.NET Core projects.

Features
Flexible rate limiting algorithms
Fixed Window
Sliding Window
Token Bucket

Customizable policies
Set maximum requests per interval
Define time windows
Support for custom partition keys (e.g., IP address)

Middleware integration
Easy registration via ASP.NET Core DI
Automatic HTTP 429 response when limits are exceeded

Standard headers
X-RateLimit-Limit – allowed requests
X-RateLimit-Remaining – remaining requests in the current window
X-RateLimit-Reset – window reset timestamp
Retry-After – seconds before next allowed request