世博会项目中的 Firebase Cloud 功能

Question

所以我有一个云功能（这还不在反应本机应用程序目录中）：

const admin = require('firebase-admin');
const firebase_tools = require('firebase-tools');
const functions = require('firebase-functions');

admin.initializeApp();


exports.deleteUser = functions
  .runWith({
    timeoutSeconds: 540,
    memory: '2GB'
  })
  .https.onCall((data, context) => {

  const userId = context.auth.uid;
  var promises = [];

  // DELETE DATA
  var paths = ['users/' + userId, 'messages/' + userId, 'chat/' + userId];

  paths.forEach((path) => {
    promises.push(
      recursiveDelete(path).then(  () => {
          return 'success';
        }
      ).catch( (error) => {
        console.log('Error deleting user data: ', error);
      })
    );
  });

  // DELETE FILES
  const bucket = admin.storage().bucket();
  var image_paths = ["avatar/" + userId, "avatar2/" + userId, "avatar3/" + userId];
  image_paths.forEach((path) => {
    promises.push(
      bucket.file(path).delete().then(  () => {
            return 'success';
          }
        ).catch( (error) => {
          console.log('Error deleting user data: ', error);
        })
      );
    });

  // DELETE USER
  promises.push(
    admin.auth().deleteUser(userId)
    .then( () => {
      console.log('Successfully deleted user');
      return true;
    })
    .catch((error) => {
      console.log('Error deleting user:', error);
    })
  );

  return Promise.all(promises).then(() => {
    return true;
  }).catch(er => {
      console.error('...', er);
  });
});




function recursiveDelete(path, context) {
    return firebase_tools.firestore
    .delete(path, {
      project: process.env.GCLOUD_PROJECT,
      recursive: true,
      yes: true,
      token: functions.config().fb.token
    })
    .then(() => {

      return {
        path: path
      }
    }).catch( (error) => {
      console.log('error: ', error);
      return error;
    });
  }
  // [END recursive_delete_function]

这用于我的 swift 应用程序。我如何将它用于我用 Expo 构建的 React 本机应用程序？

我安装了以下yarn add @react-native-firebase/functions

我在根目录中设置了 firebase.js 文件：

import * as firebase from "firebase";

// Your web app's Firebase configuration
var firebaseConfig = {
    apiKey: "test",
    authDomain: "test",
    databaseURL: "test",
    projectId: "test",
    storageBucket: "test",
    messagingSenderId: "test",
    appId: "test"
  };

// Initialize Firebase
firebase.initializeApp(firebaseConfig);

export default firebase;

我有一个按钮：

<Text>Delete Account</Text>
<View>
    <Button
        title="Delete Account"
        color="#F9578E"
        accessibilityLabel="Delete Account"
    />
</View>

点击后用户退出并运行上述云功能。

Answer 1

我不熟悉react-native和Expo，但是从@react-native-firebase/functions documentation看来，你需要做如下：

import functions from '@react-native-firebase/functions';

function App() {


  useEffect(() => {
    functions()
      .httpsCallable('deleteUser')()
      .then(response => {
        // ....
      });
  }, []);
    
  // ...
}

您没有将任何数据从您的应用传递到您的 Callable Cloud Function，即您没有在您的 Cloud Function 中使用 data 对象，这就是您需要 functions().httpsCallable('deleteUser')() 的原因。如果您需要传递一些数据，文档显示了一个示例 here，传递一个对象：

functions().httpsCallable('listProducts')({
  page: 1,
  limit: 15,
})

（这完全符合 Firebase JS SDK 调用 Callable Cloud Function 的方式，这就是我回答这个问题的原因，即使我对 react-native 缺乏了解在世博会...)

世博会项目中的 Firebase Cloud 功能

Firebase Cloud function in expo project

javascript

firebase

react-native

google-cloud-functions

react-native-firebase