Trait ethers_middleware::gas_oracle::GasOracle

pub trait GasOracle: Send + Sync + Debug {
#[must_use]    pub fn fetch<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait;
}

GasOracle is a trait that an underlying gas oracle needs to implement.

Example

use ethers::middleware::{
    gas_oracle::{EthGasStation, Etherscan, GasCategory, GasOracle},
};

let eth_gas_station_oracle = EthGasStation::new(Some("my-api-key"));
let etherscan_oracle = EthGasStation::new(None).category(GasCategory::SafeLow);

let data_1 = eth_gas_station_oracle.fetch().await?;
let data_2 = etherscan_oracle.fetch().await?;

Required methods

#[must_use]pub fn fetch<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Makes an asynchronous HTTP query to the underlying GasOracle

Example

use ethers::middleware::{
    gas_oracle::{Etherchain, GasCategory, GasOracle},
};

let etherchain_oracle = Etherchain::new().category(GasCategory::Fastest);
let data = etherchain_oracle.fetch().await?;

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Implementors

impl GasOracle for EthGasStation

pub fn fetch<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

impl GasOracle for Etherchain

pub fn fetch<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

impl GasOracle for Etherscan

pub fn fetch<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

impl GasOracle for GasNow

pub fn fetch<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<U256, GasOracleError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

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