I have a smart contract. I want to execute one of its state modifying functions.

This is the code:

const result = await smartContractObject.methods
    .send( { gas: '5000000', from:masterAccount });

How can I manually assign a nonce to this transaction?

Do I need to create a raw_tx?

1 Answer 1


I am not sure about modifying the nonce with send methods. You can use instead classic web3.eth.sendTransaction method (https://web3js.readthedocs.io/en/v1.2.1/web3-eth.html#sendtransaction). However, you'll need to provide the data field for this transaction.

const nonceThatIWant = x;
const txObject = smartContractObject.methods.addSomething(_valueToAdd);
const txData = txObject.encodeABI();
await web3.eth.sendTransaction({
   nonce: nonceThatIWant,
   data: txData,
   to: smartContractObject._address, //or smartContractObject.address depending on web3 version,

   //rest parameters like gas, value, gasPrice, etc.
  • Ok thanks for your help. However I need further assistance. The smartContract emits a event. How do I receive this value now? Originally it worked this way: result.events.myEvent.returnValues['myreturnvalue']
    – cqx
    Commented Aug 14, 2019 at 10:23
  • use the resolved promise object's logs property. For example const result = await web3.eth.sendTransaction .... Then result.logs will contain all the events of transaction. The problem might be they have not very convenient format. Commented Aug 14, 2019 at 14:52

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