About Polly.RateLimiting

The Polly.RateLimiting package adopts the .NET Rate Limiting APIs for Polly scenarios.

It exposes the AddRateLimiter extension methods for ResiliencePipelineBuilder.
It exposes the AddConcurrencyLimiter convenience extension methods for ResiliencePipelineBuilder.
It exposes the RateLimiterRejectedException class to notify the caller that the operation was rate limited.

Usage

// Add rate limiter with default options.
// See https://www.pollydocs.org/strategies/rate-limiter#defaults for defaults.
new ResiliencePipelineBuilder()
    .AddRateLimiter(new RateLimiterStrategyOptions());

// Create a rate limiter to allow a maximum of 100 concurrent executions and a queue of 50.
new ResiliencePipelineBuilder()
    .AddConcurrencyLimiter(100, 50);

// Create a rate limiter that allows 100 executions per minute.
new ResiliencePipelineBuilder()
    .AddRateLimiter(new SlidingWindowRateLimiter(
        new SlidingWindowRateLimiterOptions
        {
            PermitLimit = 100,
            SegmentsPerWindow = 4,
            Window = TimeSpan.FromMinutes(1)
        }));