设置后如何从 firebase 获得响应？

Question

function createGame(gameId, pin, currentDateTime, playerName)
{
  firebase.database().ref('games/' + gameId).set({
    pin: pin,
    createTime: currentDateTime,
    started: "0"
  });

  firebase.database().ref('games/' + gameId + '/players').set({
    id: "1",
    name: playerName,
    createTime: currentDateTime,
    status: "1"
  });
}

How to get response whether the set was successful or not in javascript? Please help I searched all over the internet!

Answer 1

As you can see from the API documentation, set() returns a promise that resolves or rejects when the operation completes. This works just like any other promise in JavaScript.

For example:

  firebase.database().ref('games/' + gameId).set({
    pin: pin,
    createTime: currentDateTime,
    started: "0"
  })
  .then(() => {
    // success
  })
  .catch(error => {
    // error
    console.error(error);
  });