如何获得firebase id [英] How to get firebase id

问题描述

任何人都知道如何获得Firebase唯一ID？我试过 name（）， name ， key ， key（）。什么都行不通。

Anyone know how to get the Firebase unique id? I've tried name(), name, key, key(). Nothing works.

我能够看到数据，但我不知道如何获取ID。我需要它。

I am able to see the data but I have no idea how to get the id back. I need it.

//Create new customers into firebase 
function saveCustomer(email) {

  firebase.database().ref('/customers').push({
    email: email
  });

  firebase.database().ref('/customers').on("value", function(snapshot) {
    console.log(snapshot.val());
    console.log(snapshot.value.name());
  }, function(errorObject) {
    console.log("The read failed: " + errorObject.code);
  });


}

推荐答案

致电 推送 将返回Firebase参考。如果您使用的是Firebase 3 API，则可以从参考文献 key property：

The call to push will return a Firebase reference. If you are using the Firebase 3 API, you can obtain the unique key of the pushed data from the reference's key property:

var pushedRef = firebase.database().ref('/customers').push({ email: email });
console.log(pushedRef.key);

推送数据的密钥是在客户端上生成的 - 使用时间戳和随机数据 - 并且立即可用。

The key for the pushed data is generated on the client - using a timestamp and random data - and is available immediately.

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