Module rate_limit 

Shared Actix rate-limit building blocks.

This module keeps product-neutral rate-limit mechanics in Forge while leaving product response envelopes and protocol-specific error bodies in application crates. It provides:

• a trusted-proxy-aware IP key extractor for actix-governor;
• small quota helpers for building Actix governor configs from non-zero (seconds_per_request, burst_size) pairs;
• a keyed string limiter for protocol endpoints that rate-limit by usernames, emails, or other normalized business keys.

Structs

NormalizedStringRateLimiter

A keyed string rate limiter with product-neutral key normalization.

RateLimitRejection

Product-neutral rate-limit rejection metadata.

TrustedProxyIpKeyExtractor

Functions

build_ip_governor_config

Builds an Actix governor config using the trusted-proxy-aware IP extractor.

build_ip_governor_config_with_rejection_response

Builds an Actix governor config with a product-provided rejection response.

retry_after_seconds

Returns the retry delay in whole seconds for a governor rejection.