Invalid Opcode when calling getName

[jabramov1]

I'm encountering an "invalid opcode" error with my Ethereum smart contract. While deployment and getNumber calls work, setName results in an error. Here are the details:

Solidity Contract:

pragma solidity ^0.8.19;

contract Construct {
    uint256 private number;
    string private name;

    constructor(uint256 _number) {
        number = _number;
    }

    function getNumber() public view returns (uint256) {
        return number;
    }

    function setNumber(uint256 _number) public {
        number = _number;
    }

    function getName() public view returns (string memory) {
        return name;
    }

    function setName(string memory _name) public {
        name = _name;
    }
}

Ruby Script:

require 'eth'
require 'forwardable'

client = Eth::Client.create('http://127.0.0.1:8545')
contract_address = "0x459E0a953e6fAe85b248017b7c4484500b08F57C"
contract = Eth::Contract.from_file(file: '../contracts/construct.sol')
tester_contract = Eth::Contract.from_abi(name: "Construct", address: contract_address, abi: contract.abi)

deployer_account = Eth::Key.new(priv: '0xc1f3f4d9fd9a7fe90b966825a780697a400c675e56f9153ed21bc045c0e7207e')
puts "Deployer account balance: #{client.eth_get_balance(deployer_account.address)['result'].to_i(16) / 1e18} ETH"

client.max_fee_per_gas = 41_000_000_000
client.max_priority_fee_per_gas = 4_000_000_000

# Call the getNumber function
begin
  response = client.call(tester_contract, "getNumber")
  puts "Current number: #{response}"
rescue StandardError => e
  puts "Error while getting number: #{e.message}"
  puts e.backtrace
end

# Call the setNumber function
begin
  response = client.transact_and_wait(tester_contract, "setNumber", 12345, sender_key: deployer_account, gas_limit: 10_000_000)
  puts "Transaction hash for setNumber: #{response}"
rescue StandardError => e
  puts "Error while calling setNumber: #{e.message}"
  puts e.backtrace
end

# Call the setName function
begin
  response = client.transact_and_wait(tester_contract, "setName", "huy", sender_key: deployer_account, gas_limit: 10_000_000)
  puts "Transaction hash for setName: #{response}"
rescue StandardError => e
  puts "Error while calling setName: #{e.message}"
  puts e.backtrace
end

# Call the getName function
begin
  response = client.call(tester_contract, "getName")
  puts "Current name: #{response}"
rescue StandardError => e
  puts "Error while getting name: #{e.message}"
  puts e.backtrace
end

Additional Context:

• The number works fine, indicating the contract is deployed correctly.
• The "invalid opcode" error suggests the issue might be with the setName or getName functions or how strings are being handled.

Any help or guidance would be greatly appreciated!

[q9f]

Hey, could you paste the actual error output?

"Invalid Opcode" is usually nothing that our libary handles, this comes from the node you are connecting to:

client = Eth::Client.create('http://127.0.0.1:8545')

What node and version and what chain config do you use?