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

但是该路线似乎无效。我转到https://company-1234.firebaseapp.com/findprinters，但是不起作用。 console.log不会像我期望的那样记录"Finding printers"。怎么了？

Answer 1

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

该URL是该功能的常规公共API端点或“ HTTP触发”。如果要使用Postman对该URL进行GET请求，则应该运行函数。 （或者，如果您在浏览器中访问了该URL，则浏览器将对该URL进行GET请求，然后您的函数也应运行）

当您想从已部署/托管的网站访问它时，就会出现问题。您需要告诉Firebase的托管部分将/findprinters的所有流量路由到您的功能-您的Firebase托管应该不尝试将/findprinters路由解析为普通HTML页面部署在主要index.html文件旁边...相反，它应该将/findprinters的所有流量引导到云功能findprinters

因此，您需要告诉Firebase将/findprinters的所有流量定向到云功能，而不是托管。您可以在firebase.json文件中提供Firebase命令/配置，在这种情况下，位于名为“ 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并说明所有内容^^

完成此操作后，请重新部署所有内容，现在您应该可以在浏览器中访问/findprinters并触发该功能。 注意，除非您使用firebase serve，否则应在部署的网站而非本地主机上访问该路由。在firebase serve上检出this link for more details。