Firebase Cloud Functions - npm 依赖项的“未定义”错误以及包含带有客户端代码的模块

Question

I'm developing an app with Firebase and I'm using Cloud Functions to generate a QR code, among other things.我正在使用Firebase开发一个应用程序，我正在使用Cloud Functions生成二维码等。

I have two problems :我有两个问题：

1, I'm trying to use the qrcodejs npm package in Cloud Functions. 1，我正在尝试在 Cloud Functions 中使用qrcodejs npm 包。
I ran sudo npm install --save qrcodejs in my functions directory.我在我的functions目录中运行了sudo npm install --save qrcodejs 。

This is the relevant part of the package.js file in the functions directory:这是functions目录中package.js文件的相关部分：

"dependencies": {
    "firebase-admin": "~5.8.1",
    "firebase-functions": "^0.8.1",
    "kjua": "^0.1.2",
    "qrcodejs": "^1.0.0"
  },

When the code is deployed and runs, I get a 'QRCode is not defined' error in the Cloud Functions log .当代码部署并运行时，我在Cloud Functions 日志中收到“QRCode is not defined”错误。

This is my functions/index.js file:这是我的函数/index.js文件：

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
var qrcodejs = require('qrcodejs')

exports.events = functions.https.onRequest((req, res) => {

  const eventID = req.path
  const promise = admin.database()
  .ref('events' + eventID)
  .once('value')

  return promise.then(result => {

    var qrcode = new QRCode("test", {
      text: "http://jindo.dev.naver.com/collie",
      width: 128,
      height: 128,
      colorDark : "#000000",
      colorLight : "#ffffff",
      correctLevel : QRCode.CorrectLevel.H
    });

    var html = `
    <!doctype html>
      <head>
        <title>${result.val().title}</title>
      </head>
      <body>
        ${qrcode}</br>
        ${result.val().title}
      </body>
    </html>`

    return res.status(200).send(html);
  });
});

The error points to this line: var qrcode = new QRCode("test", { . I'm pretty sure I'm doing the insertion into the html string wrong as well, but the error points to the line above.错误指向这一行： var qrcode = new QRCode("test", { 。我很确定我在插入 html 字符串时也出错了，但错误指向上面的行。

2, I've tried using another qr code npm package too, kjua . 2，我也尝试过使用另一个二维码 npm 包， kjua 。 I'd much prefer to use kjua , but I'm having an additional problem with that.我更喜欢使用kjua ，但我还有一个问题。

Upon running firebase deploy I get the following error at the ' i functions: preparing functions directory for uploading... ' step:运行firebase deploy后，我在“ i functions: preparing functions directory for uploading... ”步骤中收到以下错误：

ReferenceError: window is not defined

It points to the second line of the functions/node_modules/kjua/dist/kjua.min.js file.它指向functions/node_modules/kjua/dist/kjua.min.js文件的第二行。

The problem seems to be that the code is written as it were run in a browser.问题似乎是代码是在浏览器中运行时编写的。 Can I still include this package as a dependency in Cloud Functions somehow?我仍然可以以某种方式将此包作为 Cloud Functions 的依赖项包含在内吗？

Thank you very much非常感谢你

Answer 1

For sake of Answer, for people like me you just need to replace为了回答，对于像我这样的人你只需要更换

window with global and it works in node.js / cloud functions.具有global的window ，它适用于 node.js / 云功能。

Firebase Cloud Functions - npm 依赖项的“未定义”错误以及包含带有客户端代码的模块

问题描述

1 个解决方案

解决方案1
0 2021-02-12 20:39:39

Firebase Cloud Functions - npm 依赖项的“未定义”错误以及包含带有客户端代码的模块

问题描述

1 个解决方案

解决方案1 0 2021-02-12 20:39:39

解决方案1
0 2021-02-12 20:39:39