Web3 - Assign nonce to smart contract transact

Question

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

This is the code:

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

How can I manually assign a nonce to this transaction?

Do I need to create a raw_tx?

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({
   from:masterAccount,
   nonce: nonceThatIWant,
   data: txData,
   to: smartContractObject._address, //or smartContractObject.address depending on web3 version,

   //rest parameters like gas, value, gasPrice, etc.
});