如何将try catch函数变成promise函数

Question

In Reactjs, I need to turn the below try catch function into promise function:

  function one(){
      try{
       const response = await AA.sendMsg({XX})
       if(response){
           setState({response})
         }
       }catch(e){
        console.log(e)
        }
    }

My coding is like this:

const one = new Promise((resolve,reject))=> {
    AA.sendMsg({XX})
  .then(response => setState({response}) )
  .catch(e => {console.log(e)})
}

But it does not work. Anyone can tell me the right way to do it?

Answer 1

Its not working because you're assigning a new Promise to one instead of what you really want to do which is this:

function one() {
    // AA.sendMessage is already a promise.
    return AA.sendMessage({})
        .then(response => console.log("Got a response!", response))
        .catch(error => console.log("Got an error!", error))
}