Deploying Contract with Solidity-Create2-Deployer

#1

I keep getting the cannot estimate gas error when attempting to deploy a contract using solidity-create2-deployer package.

I am using the dai contract for testing purposes. I collect all the required parameters and follow the github instructions (https://github.com/thegostep/solidity-create2-deployer) however I cannot seem to get it right. I have also looked online without luck thus far. If anyone could assist I’d be very grateful.

const creat2 = async () =>{

    var daiAddress = "0x6B175474E89094C44Da98b954EedeAC495271d0F"
    const sourceCode = await fetch(`https://api.etherscan.io/api?module=contract&action=getsourcecode&address=${daiAddress}&apikey=${apiKey}`)
    const getAbi = await fetch(`https://api.etherscan.io/api?module=contract&action=getAbi&address=${daiAddress}&apikey=${apiKey}`)
    const jsonAbi = await getAbi?.json()
    const abi = await jsonAbi?.result
    var abijson = JSON.parse(abi)
    
    console.log(abijson)
    const saucy = await sourceCode?.json()

    var source = await saucy?.result
    var constructr = abijson.filter(object => object.type == "constructor")
    var constructor = constructr[0]?.inputs
    console.log(constructor)
   
    
    if(source[0]?.Proxy == "1"){
      var daiAddress = source[0]?.Implementation 
      const sourceCode = await fetch(`https://api.etherscan.io/api?module=contract&action=getsourcecode&address=${daiAddress}&apikey=${apiKey}`)
      const saucy = await sourceCode?.json()
      var source = await saucy?.result
      console.log(source[0])
      console.log(source[0]?.ConstructorArguments)

      const getAbi = await fetch(`https://api.etherscan.io/api?module=contract&action=getAbi&address=${daiAddress}&apikey=${apiKey}`)
      const jsonAbi = await getAbi?.json()
      const abi = await jsonAbi?.result
      var abijson = JSON.parse(abi)
      var constructr = abijson.filter(object => object.type == "constructor")
      var constructor = constructr[0]?.inputs
      console.log(constructor)

      // const constructor = ethers.utils.AbiCoder.prototype.decode(source[0]?.ConstructorArguments)
      // console.log(constructor)
      // decode args 
      

    }
    let constructorTypes = []
    for (let i =0; i<constructor.length; i++){
      constructorTypes.push(constructor[i]?.internalType)
    }
    console.log(constructorTypes)
    console.log(source[0]?.ConstructorArguments)
    
    const bytecode = await web3.eth.getCode(daiAddress)
    console.log(bytecode)
    const salt = generateRandomSalt(); // Choose a salt value
    
    // const constructorTypes = ["uint256"]
    const constructorArgue = "0x" + source[0]?.ConstructorArguments
    console.log(constructorArgue)
    const constructorArgs = (ethers.utils.AbiCoder.prototype.decode(constructorTypes, constructorArgue)).toString()
    console.log(constructorArgs)
    

    const signer = new ethers.Wallet(initiatorPK, provider1); // Create a wallet with your private key and provider

    const zaiAddress = getCreate2Address({
      salt: salt,
      contractBytecode: bytecode,
      constructorTypes: constructorTypes,
      constructorArgs: [constructorArgs]
    });

   console.log(zaiAddress)
 
    const { txHash, address, receipt }  = await deployContract({
      salt: salt,
      contractBytecode: bytecode,
      constructorTypes: constructorTypes,
      constructorArgs: [constructorArgs],
      signer: signer,
    }); 

    const deployed = await isDeployed(address, provider1);
    console.log(deployed)

 }```
#3

Hi @CleanMcGerk
Can you verify if you are deploying on the correct network? and have the required balance to pay the gas fee on that network.

#4

Not sure how to verify this. I am on mainnet in the above example. I am not aware of the gas cost to deploy the contract. However usually the cannot estimate gas error is not due to insufficient funds. I will add funds as I only have $30 on the account. I will try with goerli. I assume deploying the contract on the network is dependent on the rpc. If so I am doing it correctly.

#5

hmm yeah it is better to test in goerli or sepolia first. Make sure you have the require ETH for gas.

#6

Thanks @johnversus - I have tried that to no avail. I would appreciate it (given that you had the time and will) if you could replicate it. I cannot seem to solve this.

#7

Do you have your code on github? Maybe I can try to clone your code and run it on my end.

#8

I don’t have it on github. the packages required are ethers, web3js, and solidity-create2-deployer and the keys required are an etherscan api key, an alchemy api key as well as a privatekey for the wallet in use.

as well as the function above. Unfortunately if I had to upload to github I’d be uploading an entire project instead of the single function in question.

#9

the example usage is here https://github.com/thegostep/solidity-create2-deployer

#10

The original repository of this project seems to be last updated before 4-6 years. So it could be possible there are some outdated code.

Try following for any new tutorial projects

#11

Thanks will do @johnversus

#12

Hi brother @johnversus I have gone and used ethers.js instead of the above package. It was in fact caused by expired packages. However now I face issue with the arguments within the deploy instance. with create2 its necessary to include the salt in the deploy instance. I assume I am doing something wrong here as I now get the error too many arguments in the constructor. The constructor in the contract in question is of type uint256 and is a chainId of the deployed contract.

    var daiAddress = "0x11fE4B6AE13d2a6055C8D9cF65c55bac32B5d844"
   
    const getAbi = await fetch(`https://api-goerli.etherscan.io/api? 
    module=contract&action=getAbi&address=${daiAddress}&apikey=${apiKey}`)
    const jsonAbi = await getAbi?.json()
    const abi = await jsonAbi?.result
    var abijson = JSON.parse(abi)   
      
    const bytecode = await web3.eth.getCode(daiAddress)
    console.log(bytecode)
    const initCodeHash = ethers.utils.keccak256(bytecode)
    console.log(initCodeHash)   
    const salt = generateRandomSalt(); // Choose a salt value
    

    const signer = new ethers.Wallet(`${process.env.NEXT_PUBLIC_INITIATOR_KEY}`, provider1); 

   const zaiAddress = ethers.utils.getCreate2Address(
      initiator, salt, initCodeHash
    ); 
    console.log(zaiAddress)
   
    const factory = new ethers.ContractFactory(abijson, bytecode, signer)
    console.log(factory)
    const gas = await web3.eth.getGasPrice()
    console.log(gas)
    const options = {gasPrice: Number(gas*120/100), gasLimit: 200000}
    const contract = await factory.deploy(salt,5, options)
   
    const succ = await contract.deployed()
    console.log(succ)
    console.log(contract)
#13

error could be related to this line. Please check if you need 3 arguments to deploy the contract.

#14

Its definitely that line. It works with (5, options) as arguments however his deploys to a different address than the zaiAddress generated by the getCreate2Address function which is counter-intuitive in this instance. The salt value is paramount in deploying to the same address.

1 Like
#15

so my question stands unfortunately @johnversus . I don’t see why it won’t deploy to the same address

#16

Do you have any docs on where you have found about deploying to the same address

#17

the above two is what I use to execute using ethersjs.

and I used the following video to make sense of the principle

#18

I did not understand how it worked. But as per the contract in the video is defined to accept salt param on line 17.

Did you also define a salf param in your contract code? The should be the only param that keep the address same.

#19

Thank you! Makes sense

#20

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