Question

我已经创建了一个测试项目并确实根据文档进行了所有配置，但是当我运行该项目时，它没有按预期运行，在编写此问题之前，我曾在google上找到了一些重复的问题，但情况不同在每个问题中，因此我假设这是不是重复的问题。

这是我的终端命令和输出：

functions ➤ npm run serve                                                                                         

> functions@ serve /Users/codecrash/Developments/crm-firestore/functions
> firebase serve --only functions

✔  functions: Using node@8 from host.
✔  functions: Emulator started at http://localhost:5000
i  functions: Watching "/Users/codecrash/Developments/crm-firestore/functions" for Cloud Functions...
i  Your code has been provided a "firebase-admin" instance.
i  functions: HTTP trigger initialized at http://localhost:5000/demo-crm/us-central1/helloWorld
Ignoring trigger "onWrite" because the Cloud Firestore emulator is not running.
Ignoring trigger "onUpdate" because the Cloud Firestore emulator is not running.
i  functions: Beginning execution of "helloWorld"
i  Your code has been provided a "firebase-admin" instance.
i  functions: Finished "helloWorld" in ~1s

我不确定，怎么了。 helloWorld运行正常，但onUpdate和onWrite却不行。

我也通过运行以下命令

进行了尝试

functions ➤ firebase emulators:start                                                                                        
i  Starting emulators: ["functions","firestore"]
✔  functions: Using node@8 from host.
✔  functions: Emulator started at http://localhost:5001
i  firestore: Logging to firestore-debug.log
✔  firestore: Emulator started at http://127.0.0.1:8080
i  firestore: For testing set FIREBASE_FIRESTORE_EMULATOR_ADDRESS=127.0.0.1:8080
i  functions: Watching "/Users/codecrash/Developments/crm-firestore/functions" for Cloud Functions...
i  Your code has been provided a "firebase-admin" instance.
i  functions: HTTP trigger initialized at http://localhost:5001/demo-crm/us-central1/helloWorld
i  functions: Setting up Cloud Firestore trigger "onWrite"
✔  functions: Trigger "onWrite" has been acknowledged by the Cloud Firestore emulator.
i  functions: Setting up Cloud Firestore trigger "onUpdate"
✔  functions: Trigger "onUpdate" has been acknowledged by the Cloud Firestore emulator.
i  functions: Beginning execution of "helloWorld"
i  Your code has been provided a "firebase-admin" instance.
i  functions: Finished "helloWorld" in ~1s

，但使用onUpdate或onWrite触发器仍然不走运。不知道我在做什么错。

这是我的代码库：

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp({});

exports.helloWorld = functions.https.onRequest((request, response) => {
    response.send("Hello from Firebase!");
});

exports.onWrite = functions.firestore.document('users/{userId}').onWrite((change, context) => {

    const document = change.after.exists ? change.after.data() : null;
    const oldDocument = change.before.data();
    // perform desired operations ...
    console.log('local: onWrite change:', change);
    console.log('local: onWrite context:', context);
    console.log('local: onWrite document:', document);
    console.log('local: onWrite oldDocument:', oldDocument);
    return Promise.resolve();
});


exports.onUpdate = functions.firestore.document('users/{userId}').onUpdate((change, context) => {
    const document = change.after.exists ? change.after.data() : null;
    const oldDocument = change.before.data();

    // perform desired operations ...
    console.log('local: onUpdate change:', change);
    console.log('local: onUpdate context:', context);
    console.log('local: onUpdate document:', document);
    console.log('local: onUpdate oldDocument:', oldDocument);
    return new Promise().then(() => {
        return Promise.resolve();
    }).catch((error) => {
        return Promise.reject('error:code_crash');
    });
});

我在env变量中添加了键：

GOOGLE_APPLICATION_CREDENTIALS="/Users/codecrash/Developments/crm-firestore/functions/certificate.json"
FIREBASE_CONFIG="/Users/codecrash/Developments/crm-firestore/functions/certificate.json"

注意：当我将其部署到云功能上时，它工作正常。

谢谢。

Answer 1

我不知道为什么文档中没有明确提到这一点，但是很明显，需要使客户端sdk知道模拟器。有一个API可以将客户端SDK指向本地仿真器实例。这是初始化Firebase应用程序后立即在项目中进行设置的方法。希望有帮助。

firebase.initializeApp(CONFIG);

if (process.env.NODE_ENV === 'development') {
  firebase.functions().useFunctionsEmulator('http://localhost:5001');
}

Answer 2

我通过创建私钥找到了解决上述类似问题的方法

Generate private key

获取如图所示的私钥。然后声明一个全局变量 GOOGLE_APPLICATION_CREDENTIALS，然后指向下载的文件。在Linux中，您可以将其放在/home/user/.profile中

export GOOGLE_APPLICATION_CREDENTIALS="/home/user/key.js"

如果上述方法也不起作用，那么唯一的解决方案是将密钥放入index.js中。

    admin.initializeApp({
  credential: admin.credential.cert(require("/home/thilanka/Developments/admin-key.json")),
  databaseURL: "https://socialape-9c4c4.firebaseio.com"
});

Firestore Cloud功能无法在本地运行

2 个答案: