Firebase http 路由不起作用

Question

我在 firebase 中定义了以下路由：

// ONLY FOR TESTING
exports.findprinters = functions.https.onRequest((req, res) => {
  console.log("Finding printers");
  findGooglePrinters();
});

我已经部署：

$ firebase deploy --only functions

=== Deploying to 'company-1234'...

i  deploying functions
i  functions: ensuring necessary APIs are enabled...
✔  functions: all necessary APIs are enabled
i  functions: preparing functions directory for uploading...
i  functions: packaged functions (47.21 KB) for uploading
✔  functions: functions folder uploaded successfully
i  functions: creating function findprinters...
i  functions: updating function quarterly_job...
i  functions: updating function createNewUser...
i  functions: updating function createStripeCharge...
i  functions: updating function createStripeCustomer...
i  functions: updating function addPaymentSource...
i  functions: updating function cleanupUser...
✔  functions[createStripeCharge]: Successful update operation. 
✔  functions[addPaymentSource]: Successful update operation. 
✔  functions[createStripeCustomer]: Successful update operation. 
✔  functions[cleanupUser]: Successful update operation. 
✔  functions[createNewUser]: Successful update operation. 
✔  functions[findprinters]: Successful create operation. 
Function URL (findprinters): https://us-central1-company-1234.cloudfunctions.net/findprinters
✔  functions[quarterly_job]: Successful update operation. 

✔  Deploy complete!

Project Console: https://console.firebase.google.com/project/company-1234/overview

但是这条路线似乎行不通。我去 https://company-1234.firebaseapp.com/findprinters 但它不起作用。 console.log 没有像我期望的那样记录 "Finding printers"。怎么了？

Answer 1

https://us-central1-company-1234.cloudfunctions.net/findprinters

URL 是该函数的正常 public API 端点或 "HTTP-trigger"。如果您要使用 Postman 向 URL 发出 GET 请求，您应该期望运行您的函数。（或者，如果您在浏览器中访问了 URL，您的浏览器将向 URL 发出 GET 请求，然后您的函数也应该运行)

当您想从 deployed/hosted 网站访问它时，问题就来了。您需要告诉 Firebase 的托管部分将 /findprinters 的任何流量路由到您的函数 - 您的 Firebase 托管应该 而不是 尝试将 /findprinters 路由解析为正常 HTML 页面与主要 index.html 文件一起部署...相反，它应该将 /findprinters 的所有流量引导至云功能 findprinters

因此，您需要告诉 Firebase 将 /findprinters 的任何流量定向到云功能，而不是托管。您在 firebase.json 文件中提供 Firebase commands/configuration...在这种情况下，在名为 "rewrites" 的部分下，如下所示：

{
  "hosting": {
    "public": "public",

    // Add the following rewrites section *within* "hosting"
    "rewrites": [ {
      "source": "/findprinters", "function": "findprinters"
    } ]

  }
}

查看 this documentation link 那里解释了所有这些^^

完成后，重新部署所有内容，现在您应该能够在浏览器中访问 /findprinters 并触发该功能。注意除非您正在使用 firebase serve，否则您应该访问 已部署网站 上的路由，而不是本地主机。在 firebase serve 上查看 this link for more details。

Firebase http 路由不起作用

Firebase http route doesn't work

javascript

express

firebase

firebase-hosting

google-cloud-functions