Python的QPX Express API

Question

我正在尝试使用来自python的Google的QPX Express API.我在发送请求时遇到了两个问题.起初我试过的是这个:

url = "https://www.googleapis.com/qpxExpress/v1/trips/search?key=MY_KEY_HERE"
values = {"request": {"passengers": {"kind": "qpxexpress#passengerCounts", "adultCount": 1}, "slice": [{"kind": "qpxexpress#sliceInput", "origin": "RDU", "destination": location, "date": dateGo}]}}
data = json.dumps(values)
req = urllib2.Request(url, data, {'Content-Type': 'application/json'})
f = urllib2.urlopen(req)
response = f.read()
f.close()
print(response)

基于以下代码:urllib2和json

当我运行上面的代码时,我收到以下错误消息:

TypeError: POST data should be bytes or an iterable of bytes. It cannot be of type str.

我搜索了一个解决方案并根据以下问题调整了我的代码:TypeError:POST数据应该是字节或可迭代的字节.它不能是str

我将代码更改为:

url = "https://www.googleapis.com/qpxExpress/v1/trips/search?key=AIzaSyCMp2ZnKI3J91sog7a7m7-Hzcn402FyUZo"
values = {"request": {"passengers": {"kind": "qpxexpress#passengerCounts", "adultCount": 1}, "slice": [{"kind": "qpxexpress#sliceInput", "origin": "RDU", "destination": location, "date": dateGo}]}}
data = json.dumps(values)
data = data.encode("utf-8")
req = urllib2.Request(url, data, {'Content-Type': 'application/json'})
f = urllib2.urlopen(req)
response = f.read()
f.close()
print(response)

但是,当我运行此代码时,我收到以下错误消息:

urllib.error.HTTPError: HTTP Error 400: Bad Request

我也尝试将utf-8改为ascii,但我没有成功.我怎样才能正常工作？

Answer 1

这是一个使用优秀请求库的解决方案.

import json
import requests

api_key = "YOUR API KEY HERE"
url = "https://www.googleapis.com/qpxExpress/v1/trips/search?key=" + api_key
headers = {'content-type': 'application/json'}

params = {
  "request": {
    "slice": [
      {
        "origin": "TXL",
        "destination": "LIM",
        "date": "2015-01-19"
      }
    ],
    "passengers": {
      "adultCount": 1
    },
    "solutions": 2,
    "refundable": False
  }
}

response = requests.post(url, data=json.dumps(params), headers=headers)
data = response.json()
print data

我不确定你要求的原因是什么.也许它确实是请求参数错误.这个日期肯定需要在未来!