Ethereum: Resolving the “Op Coin” Issue with MevBot

As a developer working with Ethereum-based applications, you’ve likely encountered issues when integrating with Mevbot, a popular bot for automating various tasks on the Ethereum blockchain. One common problem that can arise is receiving Ether coins (ETH) instead of Op Coins (OPC) as expected.

In this article, we’ll delve into the issue and provide a step-by-step solution to resolve it using your Mevbot code.

The Issue:

When Mevbot attempts to build transactions for a user, it may receive Ether coins instead of Op Coins. This can happen due to several reasons:

• Incorrect gas price: The bot is sending a transaction with the incorrect gas price, which causes the Ethereum network to allocate Ether coins to the transaction instead of Op Coins.

• Missing or incorrect Op Coin denomination

  

  : Mevbot’s built-in functions may not account for different denominations of Op Coins (e.g., 1,000 OPC, 10,000 OPC), leading to receiving Ether coins.

Solution:

To resolve this issue, you need to ensure that your Mevbot code sends the correct gas price and Op Coin denomination. Here’s an updated function that addresses these requirements:

def build_transaction(to_address, value_in_op, gas_price):

    
Set the gas price with a higher value (e.g., 60) to account for the larger denomination of Op Coins

    gas_limit = 60000


    
Calculate the value in wei using the web3 library

    value_in_wei = web3.to_wei(value_in_op, toWei=gas_price)


    
Create a transaction with the correct gas price and Op Coin denomination (1,000 OPC)

    transaction = mevbot.build_transaction(to_address, value_in_wei * 1000, gas_limit=gas_limit)


    return transaction

In this updated function:

• We set a higher gas price (60) to account for the larger denomination of Op Coins.

• We calculate the value in wei using the toWei method from the web3 library.

• We create a new transaction with the correct gas price and Op Coin denomination (1,000 OPC).

Additional Recommendations:

To further improve your Mevbot code:

• Make sure to check the mevbot documentation for any specific requirements or recommendations regarding gas prices and Op Coin denominations.

• Consider using a different library or API that provides more precise control over transaction building and gas pricing.

By implementing these changes, you should be able to resolve the “Op Coin” issue with Mevbot and receive Op Coins as expected.