Question

这可能是一个简单的问题，但我是云功能/节点编程的新手，还没有找到合适的文档。

如何编写将接收HTTP请求但随后将HTTP请求发送到其他端点的Google云功能？例如，我可以将HTTP触发器发送到我的云功能（https://us-central1-plugin-check-xxxx.cloudfunctions.net/HelloWorldTest）。在项目的后期，我将弄清楚如何实现延迟。但后来我想用一个新的HTTP请求回复到另一个端点（https://maker.ifttt.com/trigger/arrive/with/key/xxxx）。我怎么做？

exports.helloWorld = function helloWorld(req, res) {
  // Example input: {"message": "Hello!"}
  if (req.body.message === undefined) {
    // This is an error case, as "message" is required.
    res.status(400).send('No message defined!');
  } else {
    // Everything is okay.
    console.log(req.body.message);
    res.status(200).send('Success: ' + req.body.message);
    // ??? send a HTTP request to IFTTT endpoint here
  }
};

Answer 1

这是我设法在Chetan Kanjani的帮助下工作的代码。当我向我的Google Cloud功能端点发送短信时，它会向IFTTT（另一个端点）回复短信。

const request = require('request');

exports.helloWorld = function helloWorld(req, res) {
  // Example input: {"message": "Hello!"}
  if (req.body.message === undefined) {
    // This is an error case, as "message" is required.
    res.status(400).send('No message defined!');
  } else {
    // Everything is okay.
    console.log(req.body.message);

    request.get('https://maker.ifttt.com/trigger/arrival/with/key/xxxx', function (error, response, body) {
      console.log('error:', error); // Print the error if one occurred 
      console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received 
      console.log('body:', body); //Prints the response of the request. 
    });
    res.status(200).send("Success");
  }
};

我还必须更改package.json文件以包含请求包。它已经有了sample-http包，我添加了依赖项：

{
  "name": "sample-http",
  "version": "0.0.1",
  "dependencies": {
    "request": "^2.81.0"
  }
}

我仍然不确定console.log函数在哪里打印出信息。这可能对将来的调试很有帮助。

Answer 2

Request模块使用回调。如果您想使用JavaScript promises，Axios模块提供了相同的功能。

Answer 3

使用https://www.npmjs.com/package/request模块。

var request = require('request');
request.get('https://maker.ifttt.com/trigger/arrive/with/key/xxxx', function (error, response, body) {
  console.log('error:', error); // Print the error if one occurred 
  console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received 
  console.log('body:', body); //Prints the response of the request. 
});

Answer 4

岁，但是我在搜索自己时遇到了这个问题：

具有承诺支持的请求模块是（request-promise）

如何从Google Cloud Functions（nodeJS）

4 个答案: