云功能Firebase v1.0不会初始化

Question

随着firebase云功能的最新更新,我在初始化应用程序时遇到错误,以及数据库引用.

第一个错误:以下内容应该基于Firebase函数v1.0文档和示例(https://github.com/firebase/friendlychat-web/blob/master/cloud-functions/functions/index.js)

const functions = require('firebase-functions'); 
const admin = require('firebase-admin'); 
admin.initializeApp(); //this fails

我在上面代码的firebase部署中遇到以下错误:

Error: Error occurred while parsing your function triggers.

Error: Failed to parse app options file: Error: ENOENT: no such file or directory, open '[object Object]'
    at FirebaseAppError.FirebaseError [as constructor] (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/utils/error.js:39:28)
    at FirebaseAppError.PrefixedFirebaseError [as constructor] (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/utils/error.js:85:28)
    at new FirebaseAppError (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/utils/error.js:119:28)
    at FirebaseNamespaceInternals.loadOptionsFromEnvVar (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/firebase-namespace.js:214:19)
    at FirebaseNamespaceInternals.initializeApp (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/firebase-namespace.js:64:28)
    at FirebaseNamespace.initializeApp (/Users/ZZZ/dummy/functions/node_modules/firebase-admin/lib/firebase-namespace.js:362:30)
    at Object.<anonymous> (/Users/ZZZ/dummy/functions/index.js:5:7)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)

如果我传递配置文件,则会解决此错误(但它违反了firebase文档)

const functions = require('firebase-functions');
const admin = require('firebase-admin');
var config = {
    apiKey: "<APIKEY>",
    authDomain: "<DOMAIN>",
    databaseURL: "<URL>",
    projectId: "<PROJECTID>",
    storageBucket: "<BUCKET>",
    messagingSenderId: "<ID>"
  };
admin.initializeApp(config);//this works

第二个错误:当我按如下方式进行数据库引用调用时,它会失败并出错:

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

var config = {
    apiKey: "<APIKEY>",
    authDomain: "<DOMAIN>",
    databaseURL: "<URL>",
    projectId: "<PROJECTID>",
    storageBucket: "<BUCKET>",
    messagingSenderId: "<ID>"
  };
  const app = admin.initializeApp(config);

  exports.updateUserProfile = functions.database.ref('/UserProfile/{userid}')
    .onCreate((snapshot, context) => {
        console.log(snapshot.val());
    });

日志:

Running command: npm --prefix "$RESOURCE_DIR" run lint

> functions@ lint /Users/ZZZ/dummy/functions
> eslint .

?  functions: Finished running predeploy script.
i  functions: ensuring necessary APIs are enabled...
?  functions: all necessary APIs are enabled
i  functions: preparing functions directory for uploading...

Error: Unexpected token o in JSON at position 1

Answer 1

由于firebase CLI 版本 3.18.1中的错误，您遇到此错误。尝试卸载当前版本并安装 3.18.0，这应该可以解决错误。

npm uninstall -g firebase-tools
npm install -g firebase-tools@3.18.0

更新：Firebase CLI 3.18.2 版已发布，问题现已解决。

Answer 2

如果您已更新 NPM 模块，那么您现在使用的是 Cloud Functions v1 的稳定版本。应该对现有代码进行一些细微的更改。请按照以下指南操作

https://firebase.google.com/docs/functions/beta-v1-diff?utm_source=email&utm_medium=email&utm_campaign=cloud_functions_v1.0

适用于 Cloud Functions 的 Firebase SDK 版本 1.0.0 在 API 中引入了一些重要更改。主要更改是用数据和上下文参数替换 event.data 格式，影响所有异步（非 HTTP）函数。更新后的 SDK 还可以与全新的单元测试配套 SDK firebase-functions-test 一起使用。有关详细信息，请参阅单元测试函数。