无法使用Node.js服务器连接到Google Directions API [英] Cannot connect to Google Directions API with Node.js server

问题描述

我正在尝试通过回调函数通过节点服务器连接到Google Directions API，但由于某种原因，我无法从Google API得到响应。有趣的是，几天前我做了这个工作，然后设法以某种方式打破了它。我的控制器包含以下代码-调用google_api.js中的函数：

I am trying to connect to the Google Directions API with my node server via a callback function but for some reason I cannot get a response from the Google API. Funny enough I had this working a few days ago and somehow I managed to break it. My controller contains the following code - calling a function within google_api.js:

var google = require('../scripts/google_api')    

var inputs = {
  origin: "1600 Amphitheatre Parkway, Mountain View, CA",
  destination: "1 Infinite Loop, Cupertino, CA 95014, USA",
  mode: "driving",
};

function getDirections(data, callback){
  console.log("First");
  callback(data);
  console.log("Second");
};
getDirections(inputs, google.directions);

我的google_api.js文件包含以下代码（带有有效的API密钥）：

My google_api.js file contains the following code (with a valid API key):

var googleMapsClient = require('@google/maps').createClient({
  key: 'XXX'
});

module.exports.directions = (req, res) => {

  console.log(req);

  googleMapsClient.directions({
  origin: req.origin,
  destination: req.destination,
  mode: req.mode,

  }, function(err, response) {
    if (!err) {
    console.log(response.json.results);
    };
  });
};

console.log（ First），console.log（ Second）和console.log （req）的行为均符合预期，因此该问题必须存在于googleMapsClient.directions（）函数内部。该API密钥已经过测试，并且可以与另一个前端JS函数配合使用，因此该密钥没有问题。我设法使函数输出一次带有EHOSTUNREACH错误的错误，但复制此错误并不一致。我担心自己缺少一些基本知识，甚至都不知道从哪里开始。任何帮助将是巨大的！谢谢

console.log("First"), console.log("Second") and console.log(req) all behave as expected so the problem must exist inside the googleMapsClient.directions() function. The API key is tested and works with another front-end JS function so it isn't a problem with the key. I managed to get the function to output an error once with a EHOSTUNREACH error but replicating this has not been consistent. I fear I am missing something so basic that I don't even know where to begin. Any help would be great! Thanks

推荐答案

**

很久以前问过，只要有人遇到问题并想要
实施此Google api，就发布一个工作代码。 / p>

Asked long time ago, just posting a working code if anybody comes across and want to implementing this google api.

**

var googleMapsClient = require('@google/maps').createClient({
  key: xxxxxxxxxx
});

function getDirections (req, callback)  {
  googleMapsClient.directions({
  origin: req.origin,
  destination: req.destination,
  mode: req.mode,

  }, function(err, response) {
  console.log(err);
  console.log(response);
    if (!err) { 
    callback(response.json.results);
    };
  });
};

var inputs = {
  origin: "1600 Amphitheatre Parkway, Mountain View, CA",
  destination: "1 Infinite Loop, Cupertino, CA 95014, USA",
  mode: "driving",
};

getDirections(inputs, function(result){
console.log("Response: ", result)
});

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