-1

I use sendSignedTransaction to send the contract and return contractAddress: null

      let rpcUrl = "https://ropsten.infura.io/v3/6756e6f8f0e34482a262a7cf1d15f2c2";
  var web3 = new Web3(new Web3.providers.HttpProvider(rpcUrl));
  var input = {
    language: 'Solidity',
    sources: {
      'HelloWorld.sol': {
        content: 'pragma solidity ^0.5.10; contract HelloWorld { function f() public { } }'
      }
    },
    settings: {
      outputSelection: {
        '*': {
          '*': ['*']
        }
      }
    }
  }

  var compiled = solc.compile(JSON.stringify(input))
  var output = JSON.parse(compiled);
  var bytecode = output.contracts["HelloWorld.sol"]['HelloWorld'].evm.bytecode.object
  const privateKey = Buffer.from(
    'my privatekey',
    'hex'
  )

  web3.eth.getTransactionCount("0x146DD8c053d94354C75783Ff8846012C8907Df17").then(function (transactionCount) {
    console.log(web3.utils.toHex(transactionCount));
    var txParams = {
      nonce: web3.utils.toHex(transactionCount),
      gasPrice: web3.utils.toHex(1000),
      gasLimit: web3.utils.toHex(1000000),
      to: '0x0000000000000000000000000000000000000000',
      value: '0x00',
      data: "0x" + bytecode,
    }
    const tx = new Tx(txParams, { 'chain': 'ropsten' })
    tx.sign(privateKey)
    const serializedTx = tx.serialize()

    var receipt=null;

    web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex'), function (err, hash) {
      console.log(err);
      console.log(hash);
      while (receipt == null) {

        receipt = web3.eth.getTransactionReceipt(hash);

      }

      console.log('Contract address: ' + receipt.contractAddress);





  });
0
{ blockHash:

'0x6a77b44ca49bd3a822d7a033251cc425941c6a184b555c3242831f4180ff7ebf', blockNumber: 6183868, contractAddress: null, cumulativeGasUsed: 5492997, from: '0x146dd8c053d94354c75783ff8846012c8907df17', gasUsed: 29740, logs: [], logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', status: true, to: '0x0000000000000000000000000000000000000000', transactionHash: '0x44adb75d7ee2d0fa0ba939784354f9b0fe512887d988711296995973c20be4a1', transactionIndex: 12 }

  • Please edit your own question if you want to add more details. – Ismael Aug 14 at 14:52
0

You send the transaction to the "zero" address "0x0000000000000000000000000000000000000000", which itself is a valid address. For ethereum it looks like a transfer of ether.

To create a contract you have to send it to the "null" address, removing "to" in the txParams should be enough.

var txParams = {
  nonce: web3.utils.toHex(transactionCount),
  gasPrice: web3.utils.toHex(1000),
  gasLimit: web3.utils.toHex(1000000),
  // to: '0x0000000000000000000000000000000000000000', <--- removed
  value: '0x00',
  data: "0x" + bytecode,
}
  • Thank you very much. I've settled it. – qi li Aug 30 at 9:06

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