How i can call one method inside another method result?

Question

i want to call two methods first call one method then second method after first method success below is my code please check and let me know how i can achieve this

this.state.token.methods.approve(this.state.neutralG.address, qty).send({ from: this.state.account}).
  then('receipt', (receipt)=>{

   this.state.neutralG.methods.createEscrow(intvalue, 3600, price, this.symbol, beneficiaryAddress, qty,
    this.tokenAddress).send({ from: this.state.account}).
  once('receipt', (receipt)=>{
    this.setState({loading: false})
  })

  })

this is not calling second transaction.

Answer 1

Your on, once and then are wrong. Please try as below:

this.state.token.methods.approve(this.state.neutralG.address, qty).send({ from: this.state.account})
  .on('receipt', (receipt)=>{
this.callCreateEscrow();
console.log('receipt');
  })

function callCreateEscrow(){
this.state.neutralG.methods.createEscrow(intvalue, 3600, price, this.symbol, beneficiaryAddress, qty,
    this.tokenAddress).send({ from: this.state.account})
  .on('receipt', (receipt)=>{
    this.setState({loading: false})
  })
}

And also please check other things in .on('<>', ).... They can be 'receipt', 'confirmation', 'transactionHash' etc.,

reference: https://web3js.readthedocs.io/en/v1.2.0/web3-eth-contract.html#id22