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L1 Fee Calculation

BeginnerGasArbGasInfo10 XP

Calculate L1 fee for a transaction using current base fee per gas

In this challenge, you need to retrieve L1 gas pricing information from the ArbGasInfo precompile and calculate the transaction fee.

Create a function called calculateL1Fee that:

Connects to the ArbGasInfo precompile on Arbitrum Sepolia

Retrieves current gas prices information

Returns the L1 data cost component

JavaScript

        // This should return the current L1 data fee in wei
        calculateL1Fee()

Use the ethers.js library which is already imported for you

The ArbGasInfo precompile is located at: 0x000000000000000000000000000000000000006c

Use the 'getPricesInWei()' function to get gas price information

Remember that getPricesInWei() returns multiple values, you need to extract the L1 data cost

Complete all the steps above to solve the challenge!

l1-fee-calculation.ts

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