我想从距离矩阵API中获取duration_in_traffic。
当我直接通过URL访问API时,效果很好
https://maps.googleapis.com/maps/api/distancematrix/json?origins=Boston,MA&destinations=Lexington,MA&departure_time=now&key=MY_KEY
但是它不能通过代码工作。这是我尝试过的东西。
1]试图从客户端JS通过AJAX调用API。得到回应的CORS问题
2)尝试使用JS客户端库
var base = "https://maps.googleapis.com/maps/api/distancematrix/json?units=metric";
var source = "&origins=" + element["Origin Name"] + " , " + element["Origin Street"] + " , " + element["Origin City"] + " , " + element["Origin State"] + " , " + element["Origin County"] + " , " + element["Origin Postal"];
var destination = "&destinations=" + element["Destination Name"] + " , " + element["Destination Street"] + " , " + element["Destination City"] + " , " + element["Destination State"] + " , " + element["Destination County"] + " , " + element["Destination Postal"];
var key = "&key=MY_KEY";
var time = "&departure_time=";
try {
time += new Date().setHours(24 + parseInt(element["Pickup Time"].split(":")[0]), parseInt(element["Pickup Time"].split(":")[1]), 0, 0);
}
catch{
time += new Date().setHours(0, 0, 0, 0);
}
console.log(time);
var url = base + time + source + destination + key + "&transit_mode=driving";
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [source],
destinations: [destination],
travelMode: 'DRIVING',
}, callback);
if (lastSource != "empty") {
service.getDistanceMatrix(
{
origins: [lastSource],
destinations: [source],
travelMode: 'DRIVING',
}, callback2);
}
lastSource = source;
function callback(response, status) {
try {
element["TRIP DISTANCE"] = (parseFloat(response.rows["0"].elements["0"].distance.text.replace(/ km/g, '')) / 1.609).toFixed(2) + " Miles";
console.log(response.rows["0"].elements["0"].distance.text);
console.log(element["TRIP DISTANCE"]);
element["TRIP TRAVEL TIME "] = response.rows["0"].elements["0"].duration.text;
}
catch (e) {
console.log(e);
}
}
function callback2(response, status) {
try {
element["ROUTE DISTANCE"] = (parseFloat(response.rows["0"].elements["0"].distance.text.replace(/ km/g, '')) / 1.609).toFixed(2) + " Miles";
console.log(response.rows["0"].elements["0"].distance.text);
console.log(element["TRIP DISTANCE"]);
element["ROUTE TRAVEL TIME"] = response.rows["0"].elements["0"].duration.text;
}
catch (e) {
console.log(e);
}
}
它不返回duration_in_traffic。我进行了搜索,发现了两个不同的原因,我不知道哪个是正确的。
首先是javascript客户端库不支持duration_in_traffic,只有从服务器发出请求时才返回。
第二是,此响应仅发送到具有高级计划的帐户。我试图查看高级计划的注册程序,但不清楚。该网站here说:“注册或新客户不再可以使用Google Maps Platform Premium计划。”那是什么意思。我目前正在使用Google Cloud Platform免费1年和300美元试用版。
3)我尝试使用nodeJS库
const googleMapsClient = require('@google/maps').createClient({
key: 'MY_KEY',
Promise: Promise
});
googleMapsClient.geocode({address: '1600 Amphitheatre Parkway, Mountain View, CA'})
.asPromise()
.then((response) => {
console.log(response.json.results);
})
.catch((err) => {
console.log(err);
});
并得到此回复。
{ status: 200,
headers:
{ 'content-type': 'application/json; charset=UTF-8',
date: 'Sat, 07 Dec 2019 11:03:05 GMT',
pragma: 'no-cache',
expires: 'Fri, 01 Jan 1990 00:00:00 GMT',
'cache-control': 'no-cache, must-revalidate',
'access-control-allow-origin': '*',
server: 'mafe',
'x-xss-protection': '0',
'x-frame-options': 'SAMEORIGIN',
'server-timing': 'gfet4t7; dur=19',
'alt-svc':
'quic=":443"; ma=2592000; v="46,43",h3-Q050=":443"; ma=2592000,h3-Q049=":443"; ma=2592000,h3-Q048=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000',
'accept-ranges': 'none',
vary: 'Accept-Language,Accept-Encoding',
connection: 'close' },
json:
{ error_message: 'This API project is not authorized to use this API.',
results: [],
status: 'REQUEST_DENIED' },
requestUrl:
'https://maps.googleapis.com/maps/api/geocode/json?address=1600%20Amphitheatre%20Parkway%2C%20Mountain%20View%2C%20CA&key=MY_KEY',
query:
{ address: '1600 Amphitheatre Parkway, Mountain View, CA',
key: 'MY_KEY' } }
我尝试查找此nod库的文档,但找不到它。
我对这三种方法都没问题,即使有其他方法也没关系。请您帮我弄清楚我要去哪里错了。
[duration_in_traffic
只返回给有流量数据,mode
设置为driving
,并且departureTime
作为请求中distanceMatrixOptions字段的一部分的Google Maps Platform Premium计划客户。] >
因此,您应该使用web service来表示以下所有内容都必须为真才能获得duration_in_traffic
:
该请求包括一个departure_time
参数。该请求包括有效的API密钥,或有效的Google Maps Platform Premium Plan客户ID和签名。
- 交通状况适用于所请求的路线。
mode
参数设置为driving
。鉴于您发布的内容,似乎您没有在请求中提供所有这些内容。
This API project is not authorized to use this API
中的错误。