gleeth/gas

Gas estimation helpers for legacy and EIP-1559 transactions.

These functions combine multiple RPC calls to produce a complete gas estimate that can be passed directly to a transaction builder.

Types

Eip1559GasEstimate

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Gas estimate for an EIP-1559 (Type 2) transaction.

pub type Eip1559GasEstimate {
  Eip1559GasEstimate(
    max_fee_per_gas: String,
    max_priority_fee_per_gas: String,
    gas_limit: String,
  )
}

Constructors

Eip1559GasEstimate(
  max_fee_per_gas: String,
  max_priority_fee_per_gas: String,
  gas_limit: String,
)

LegacyGasEstimate

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Gas estimate for a legacy (pre-EIP-1559) transaction.

pub type LegacyGasEstimate {
  LegacyGasEstimate(gas_price: String, gas_limit: String)
}

Constructors

LegacyGasEstimate(gas_price: String, gas_limit: String)

Values

estimate_eip1559

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pub fn estimate_eip1559(
  provider: provider.Provider,
  from: String,
  to: String,
  value: String,
  data: String,
) -> Result(Eip1559GasEstimate, types.GleethError)

Estimate gas for an EIP-1559 transaction by fetching priority fee, base fee from fee history, and gas limit. Computes max_fee = 2 * base_fee + priority_fee.

estimate_legacy

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pub fn estimate_legacy(
  provider: provider.Provider,
  from: String,
  to: String,
  value: String,
  data: String,
) -> Result(LegacyGasEstimate, types.GleethError)

Estimate gas for a legacy transaction by fetching gas price and gas limit.