Trait EthFees

pub trait EthFees: LoadFee {
    // Provided methods
    fn gas_price(
        &self,
    ) -> impl Future<Output = Result<U256, Self::Error>> + Send
       where Self: LoadBlock { ... }
    fn blob_base_fee(
        &self,
    ) -> impl Future<Output = Result<U256, Self::Error>> + Send
       where Self: LoadBlock { ... }
    fn suggested_priority_fee(
        &self,
    ) -> impl Future<Output = Result<U256, Self::Error>> + Send
       where Self: 'static { ... }
    fn fee_history(
        &self,
        block_count: u64,
        newest_block: BlockNumberOrTag,
        reward_percentiles: Option<Vec<f64>>,
    ) -> impl Future<Output = Result<FeeHistory, Self::Error>> + Send { ... }
    fn approximate_percentile(
        &self,
        entry: &FeeHistoryEntry,
        requested_percentile: f64,
    ) -> u128 { ... }
}

Fee related functions for the EthApiServer trait in the eth_ namespace.

Provided Methods

fn gas_price(&self) -> impl Future<Output = Result<U256, Self::Error>> + Send

where Self: LoadBlock,

Returns a suggestion for a gas price for legacy transactions.

See also: https://github.com/ethereum/pm/issues/328#issuecomment-853234014

fn blob_base_fee( &self, ) -> impl Future<Output = Result<U256, Self::Error>> + Send

where Self: LoadBlock,

Returns a suggestion for a base fee for blob transactions.

fn suggested_priority_fee( &self, ) -> impl Future<Output = Result<U256, Self::Error>> + Send

where Self: 'static,

Returns a suggestion for the priority fee (the tip)

fn fee_history( &self, block_count: u64, newest_block: BlockNumberOrTag, reward_percentiles: Option<Vec<f64>>, ) -> impl Future<Output = Result<FeeHistory, Self::Error>> + Send

Reports the fee history, for the given amount of blocks, up until the given newest block.

If reward_percentiles are provided the [FeeHistory] will include the approximated rewards for the requested range.

fn approximate_percentile( &self, entry: &FeeHistoryEntry, requested_percentile: f64, ) -> u128

Approximates reward at a given percentile for a specific block Based on the configured resolution

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors