Trait Storage

pub trait Storage {
    type Error: From<RateLimitExceededError>;

    // Required method
    fn try_acquire(
        &self,
        alg: TokenBucketAlgorithm,
        permits: u32,
    ) -> Result<(), Self::Error>;
}

Trait that provides function for tokens acquiring.

Object that implements this trait should load state, execute provided algorithm and save updated state.

Required Associated Types

type Error: From<RateLimitExceededError>

Required Methods

fn try_acquire( &self, alg: TokenBucketAlgorithm, permits: u32, ) -> Result<(), Self::Error>

Implementors

impl Storage for DistributedStorage

Available on crate feature distributed-impl only.

type Error = DistributedStorageError

impl Storage for InMemoryStorage

type Error = RateLimitExceededError

impl Storage for RedisStorage

Available on crate feature redis-impl only.

type Error = RedisStorageError