Struct RateLimitMiddleware 

pub struct RateLimitMiddleware { /* private fields */ }

Rate limiting middleware

Uses the governor crate’s GCRA implementation to enforce rate limits per client IP address. When a client exceeds their rate limit, a 429 response is returned immediately without forwarding to the upstream.

Implementations

impl RateLimitMiddleware

pub fn new(enabled: bool, requests_per_sec: u32, burst_size: u32) -> Self

Create a new rate limiting middleware

Arguments

• enabled - Whether to enable rate limiting
• requests_per_sec - Maximum requests per second per IP
• burst_size - Maximum burst size (tokens available immediately)

Example

use warpdrive::middleware::RateLimitMiddleware;

// Allow 10 req/s with burst of 20
let middleware = RateLimitMiddleware::new(true, 10, 20);

Trait Implementations

impl Middleware for RateLimitMiddleware

fn request_filter<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, session: &'life1 mut Session, ctx: &'life2 mut MiddlewareContext, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Process request before sending to upstream

fn response_filter<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, _session: &'life1 mut Session, _upstream_response: &'life2 mut ResponseHeader, _ctx: &'life3 mut MiddlewareContext, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Process response before sending to client