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TokenBucketRateLimiter

fastmcp_server::rate_limiting

Struct TokenBucketRateLimiter 

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pub struct TokenBucketRateLimiter { /* private fields */ }
Expand description

Token bucket implementation for rate limiting.

The token bucket algorithm allows for burst traffic while maintaining a sustainable long-term rate. Tokens are added at a constant rate and consumed when requests arrive.

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impl TokenBucketRateLimiter

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pub fn new(capacity: usize, refill_rate: f64) -> Self

Creates a new token bucket rate limiter.

§Arguments
  • capacity - Maximum number of tokens (burst capacity)
  • refill_rate - Tokens added per second (sustained rate)
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pub fn try_consume(&self, tokens: usize) -> bool

Tries to consume tokens from the bucket.

Returns true if tokens were available and consumed, false otherwise.

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pub fn available_tokens(&self) -> f64

Returns the current number of available tokens.

Trait Implementations§

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impl Debug for TokenBucketRateLimiter

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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