Firebase onCreate向auth.user添加自定义声明 [英] Firebase onCreate add custom claims to the auth.user

问题描述

我正在尝试添加自定义声明，已注册到Firebase.我的Firestore还有另一个 user 集合，用于保存注册信息记录.现在，我试图保留isRegistered自定义声明，但似乎无法正常工作.

I am trying to add a custom claims, isRegistered to firebase. My firestore has another user collection to keep register info records. Now I am trying to keep a isRegistered custom claim but I can not seem to get it work.

exports.addRegisteredRole = functions.database.ref('/user')
    .onCreate((snap, context) => {
      return // **I added this later, but the issue still remains.**
        admin.auth()
            .setCustomUserClaims(context.auth.uid, {isRegistered: true})
            .then(() => {
                console.log('done', snap)
                return {
                    message: 'done',
                    data: snap
                }
            })
            .catch(err => {
                console.log('something went wrong', err);
                return err
            })
    });

我正在通过以下方式检查此声明

I am checking this claim by,

currentUser.getIdTokenResult()
        .then(res => {
            console.log(res.claims.isRegistered)
        })

(验证用户对象).即使我重新登录，它仍然是未定义的.我做错什么了吗，我对Firebase还是陌生的.

(auth user object). Even if I re-logged it remains undefined. Am I doing something wrong, I am very new to firebase.

推荐答案

问题出在onCreate触发器上.您以为您在context.auth对象中获取了uid，这是不正确的.

The issue is with your onCreate trigger. You assumed you're getting the uid in the context.auth object, which is not correct.

onCreate触发器将在您的用户"目录中添加新文档时自动触发.收藏.在这种情况下，context.aut.uid是未定义的.您应该在功能日志中对此进行跟踪.

The onCreate trigger will be triggered automatically on the addition of a new document in your "user" collection. In this case, the context.aut.uid is undefined. You should trace this in your function logs.

您可以通过几种方式实现您想要做的事情

1. 如果用户记录文档使用用户ID作为文档名称，则可以执行以下操作

exports.addRegisteredRole =
  functions.firestore
    .document('test/{docId}')
    .onCreate((snap, context) => {
      admin.auth()
        .setCustomUserClaims(snap.id, { isRegistered: true })
        .then(() => {
          console.log('done', snap)
          return {
            message: 'done',
            data: snap
          }
        })
        .catch(err => {
          console.log('something went wrong', err)
          return err
        })
    })

1. 如果您要用其他名称命名用户记录文档，或者让firebase为您确定名称，那么您必须将uid作为文档数据中的属性.然后，您使用docSnapshot.data().uid而不是docSnapshot.id，如下所示

exports.addRegisteredRole =
  functions.firestore
    .document('test/{docId}')
    .onCreate((snap, context) => {
      admin.auth()
        .setCustomUserClaims(snap.data().uid, { isRegistered: true })
        .then(() => {
          console.log('done', snap)
          return {
            message: 'done',
            data: snap
          }
        })
        .catch(err => {
          console.log('something went wrong', err)
          return err
        })
    })

祝你好运

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