Firebase 函数在本地服务时不返回预期的环境配置

Firebase Function not returning expected environment configuration when served locally

我在 Firebase 托管上托管了一个 React 应用程序,它通过调用 Firebase 函数 () 检索环境配置值。下面是函数的实现:

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

module.exports = functions.https.onRequest((req, res) => {
    res.status(200).send(functions.config());
});

当我调用 Firebase CLI 时:

firebase functions:config:get

我明白了:

{
  "auth": {
        "clientid": MY_CLIENT_ID,
        "signoutreturnto": SOME_URL,
        "responsetype": SOME_URL,
        "redirecturi": SOME_OTHER_URL,
        "scope": SOME_OTHER_STRING,
        "domain": SOME_DOMAIN
    }
}

从 Firebase CLI 调用 "Firebase deploy --only functions" 会产生一个 URL 端点来调用已部署的 firebase 函数 config,returns 我的环境配置:

https://us-central1-MY_FIREBASE_APP.cloudfunctions.net/config

调用此端点 returns 代表我的配置的预期 JSON + Firebase 附加的配置:

{
    "auth": {
        "clientid": MY_CLIENT_ID,
        "signoutreturnto": SOME_URL,
        "responsetype": SOME_URL,
        "redirecturi": SOME_OTHER_URL,
        "scope": SOME_OTHER_STRING,
        "domain": SOME_DOMAIN
    },
    "firebase": {
        "databaseURL": MY_DATABASE_URL,
        "storageBucket": MY_STORAGE_BUCKET,
        "apiKey": MY_API_KEY,
        "authDomain": MY_AUTH_DOMAIN,
        "projectId": MY_PROJECT_ID,
        "credential": {
            "credential_": {}
        }
    }
}

我有edited my firebase.json with re-write rules to serve my functions as API endpoints

{
  "hosting": {
    "public": "build",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      },
      {  
        "source": "/config", "function": "config"
      }
    ]
  }
}

但是 - 当我使用来自 Firebase CLI 的以下命令在本地提供功能时:

Firebase serve --only functions,hosting

然后我为我的配置函数调用生成的本地端点:

http://localhost:5001/MY_FIREBASE_APP/us-central1/config

返回的 json 对象缺少预期的 "auth" 对象(如上所示)。相反,返回的 JSON 是:

{
    "firebase": {
        "databaseURL": MY_DATABASE_URL,
        "storageBucket": MY_STORAGE_BUCKET,
        "apiKey": MY_API_KEY,
        "authDomain": MY_AUTH_DOMAIN,
        "projectId": MY_PROJECT_ID,
        "credential": {
            "credential_": {
                  ...
                }
            }
        }
    }
}

由于无法检索预期的配置值,这会在本地执行时破坏我的应用程序。

为什么我配置的 "auth" 对象没有像我调用另一个 url 端点时那样包含在结果中?

如果您想在本地模拟函数中使用配置参数,follow the instructions here。具体来说:

If you're using custom functions configuration variables, first run the command to get your custom config (run this within the functions directory), and then run the shell:

cd functions
firebase functions:config:get > .runtimeconfig.json

functions 目录中的 .runtimeconfig.json 文件需要包含要在仿真期间使用的配置。