升级到Cloud Functions v1.0后，我一切都中断了 [英] Upgrading to Cloud Functions v1.0 and I broke everything

问题描述

尝试遵循此页面上的说明并且我不知道如何简单地获取DocumentSnapshot中的数据.

Trying to follow the instructions on this page and I can't figure out how to simply get to the data in the DocumentSnapshot.

除了说它与onDelete相同之外，他们并没有真正解释更新onCreate的事情，而我无法使之工作.

They do not really explain updating onCreate, except to say it is the same as onDelete, and I can't get that to work.

 exports.mFoo = functions.firestore
    .document('foos/{key}')
    .onCreate((snap, context) => { 

      const bar = snap.data(); // <-- DOESN'T WORK
      console.log(bar); // <-- DOESN'T WORK

    return Promise;
});

我收到以下错误:

TypeError:snap.data不是函数 Exports.mFoo.functions.firestore.document.onCreate

TypeError: snap.data is not a function at exports.mFoo.functions.firestore.document.onCreate

我确信它非常简单，但是我不太了解这些东西，我尝试了无数种东西的组合，但是没有用.

I'm sure it's super simple but I don't really understand this stuff and I have tried tons of combinations of stuff and nothing works.

推荐答案

结果我遇到了与

Turns out I ran into the same problem that I have before.

在执行以下任何类型的更新之前:

Before doing any of these types of updates:

npm install firebase-functions@latest --save
npm install firebase-admin@5.11.0 --save
npm install -g firebase-tools

首先，我必须打开我的package.json文件并删除所有将要更新的依赖项.

First I have to open my package.json file and delete any dependencies that are going to be updated.

这些就是我在那找到的东西

These were what I found there:

 "dependencies": {
    "firebase-admin": "~5.8.1",
    "firebase-functions": "^0.8.1"
  },

将相关性保留为空，然后重新运行这些命令进行安装后，将显示以下内容:

After leaving the dependencies empty and rerunning those commands to install, these showed up:

 "dependencies": {
    "firebase-admin": "^5.11.0",
    "firebase-functions": "^1.0.1"
  },

显然，安装和升级不会解决这些依赖关系，但是如果不存在，它们会添加它们.也许可以通过在其中键入来修复它，但我不知道要在其中放置什么版本号.

Apparently installs and upgrades won't fix these dependencies but they will add them if they aren't there. Maybe it is possible to fix it by typing those in but I wouldn't have had a clue what version numbers to put there.

现在，(修改后的)代码有效:

Now the (modified) code works:

 exports.mFoo = functions.firestore
    .document('foos/{key}')
    .onCreate((snap, context) => { 

      const bar = snap.data(); // now this works
      console.log(bar.baz); // <-- before I wasn't referring to anything in the snapshot

    return Promise; // I. Promised. Nothing.
});

感谢 @Todd Kerpelman 为我指出了正确的方向，并@Bob Snyder ，因为

Thanks @Todd Kerpelman for pointing me in the right direction and @Bob Snyder because the same answer from the other post worked for me here also.

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