Python请求：登录paytm以获取商户数据

Question

我正在尝试使用python请求库登录paytm，并使用附近的paytm从其网站上刮取paytm商户的数据。但是我无法做到这一点，我有很多问题，比如我需要登录还是cookies为我完成工作，我需要在post请求之前提交get请求

我使用的代码-

payload = {"distance":10,"endLimit":20,"latitude":26.8467088,"longitude":80.9461592,
       "searchFilter":[{"filterType":"SERVICE","value":"PAYMENT_POINT"}],
       "sortBy":{"DISTANCE_WISE_SORT":"ASC"},"startLimit":20,"channel":"web","version":2}
pp = {"method":"get","channel":"web","version":2}
h={'Content-type': 'application/json', 'Accept': 'application/json, text/plain, */*',
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36'
,'Accept-Encoding': 'gzip, deflate, br','Accept-Language': 'en-US,en;q=0.9','Connection': 'keep-alive'
         #,'Content-Length': '222'
}

url = 'https://paytm.com/v1/api/getnearbysellers?child_site_id=1&site_id=1'

initial_url = 'https://paytm.com/nearby'

with requests.Session() as session:
    initial_response  = session.get(initial_url)

    response = session.post(url, headers=h, data=payload)


response.text

我得到的答复是-

{"error":"invalid json","code":400}

我在Chrome中使用网络监控工具得到的东西

General-

Request URL: https://paytm.com/v1/api/getnearbysellers?                                child_site_id=1&site_id=1
Request Method: POST
Status Code: 200 OK
Remote Address: 13.251.31.44:443
Referrer Policy: no-referrer-when-downgrade

Response Headers-
HTTP/1.1 200 OK
Content-Encoding: gzip
Content-Type: application/json;charset=UTF-8
Date: Mon, 03 Dec 2018 08:07:10 GMT
Server: openresty
set-cookie: JSESSIONID=66BC9F5E7F355200029AF2316C4E546B; Path=/; secure; HttpOnlyservice/; HttpOnly
strict-transport-security: max-age=31536000
Vary: Accept-Encoding
vary: Accept-Encoding
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-paytm-srv-id: pawslmktshopapp22
X-Powered-By: Express
x-server-time: 1543824430.635
x-xss-protection: 1; mode=block
Content-Length: 2606
Connection: keep-alive

Request Headers-
POST /v1/api/getnearbysellers?child_site_id=1&site_id=1 HTTP/1.1
Host: paytm.com
Connection: keep-alive
Content-Length: 222
Accept: application/json, text/plain, */*
Origin: https://paytm.com
X-XSRF-TOKEN: LZAiRpku-aptONqCm7Ellab6SEeDAnqZRvuM
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36
Content-type: application/json
Referer: https://paytm.com/nearby
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
Cookie: referrer=; secure=true; returning_usr=1; _ga=GA1.2.938904971.1543763520; _gid=GA1.2.1467864151.1543763520; tvc_vid=11543763520802; referrer=; _vwo_uuid_v2=D4CB7C24D54981ADADF33AED06E04E853|54a0ddcfd4724496a7f9ce8ab7cded2a; _vis_opt_s=1%7C; _vis_opt_test_cookie=1; connect.sid=s%3A__KFlRc2nU_bImjL6OajuBL9cUygnrBi.h1hRCkhz0p5%2FAcoVmArbMXYlUtiv87HJnIueXnr3gSA; _gcl_au=1.1.1598196666.1543771833; _parsely_session={%22sid%22:1%2C%22surl%22:%22https://blog.paytm.com/10-things-you-didnt-know-you-could-do-on-paytm-62a1b200faa6?gi=a3bf13aea45%22%2C%22sref%22:%22https://www.google.co.in/%22%2C%22sts%22:1543823267357%2C%22slts%22:0}; _parsely_visitor={%22id%22:%22pid=a45f5e3ede4fdfe39b8544a91a36ad17%22%2C%22session_count%22:1%2C%22last_session_ts%22:1543823267357}; X-MW-TOKEN=0ac55a86-4b9e-4eaf-8188-71a8c4a705be; X-DM-TOKEN=7f417f58-b33f-4580-a6e3-348f8a324d5c; market-onboard.sid=s%3A8oCGyIrKg-0SsuWTyZ0e6UY3kf89fgnk.SvkZbJub6a%2BG9dZlKMf0rBP80VXFejnCkQiuEdCa27E; AWSELB=97B3358B1C150AC96AC74F39ED34D289809132006F1D0627F111BA7DAB6F4B4A64D171E96C5345A5110C0ECD2E0D82F0BD18BA748DF362808AF3F805565A609A67DC7BF11D; queenoftarts=pawslmktshopapp22; _gat_UA-36768858-14=1; XSRF-TOKEN=LZAiRpku-aptONqCm7Ellab6SEeDAnqZRvuM; _gat=1; _dc_gtm_UA-36768858-14=1; JSESSIONID=9C42AB42BC1AF0240183C02730E3754F


Query String Parameter-

child_site_id=1&site_id=1


Request Payload- 
 {"distance":10,"endLimit":20,"latitude":26.8467088,"longitude":80.9461592,"searchFilter":[{"filterType":"SERVICE","value":"PAYMENT_POINT"}],"sortBy":{"DISTANCE_WISE_SORT":"ASC"},"startLimit":20,"channel":"web","version":2}

Response-
{"requestGuid":null,"orderId":null,"status":"SUCCESS","statusCode":"SS_0001","statusMessage":"Request Successfully fullfilled.","response":[{"cashPointsDetail":{"terminalId":8507407,"terminalType":"User","businessName":"","contactPerson":["Vijay Kumar"],"address":["1","","Aasayana Aasayana"],"state":"Uttar Pradesh","city":"Lucknow","category":"Retail And Shopping","subCategory":"Books","location":{"lat":26.846227,"lon":80.946663},"contactNo":["8587932548"],"displayName":"The Book Service","fax":null,"startTime":"10:00","endTime":"20:00","saturdayStartTime":null,"saturdayEndTime":null,"rating":null,"monday":null,"tuesday":null,"wednesday":null,"thurday":null,"friday":null,"saturday":null,"sunday":null,"landMark":null,"pinCode":"226012","servicesOffered":["PAYMENT_POINT"],"terminalCode":"6283495","establishmentDate":null,"emailId":null,"logoUrl":"https://assetscdn.paytm.com/images/catalog/pg/Retail%20&%20Shopping.jpg","tagLine":null,"storeId":null,"merchantId":"6283495","address1":"1","address2":"","address3":"Aasayana Aasayana","editAble":true},"currentCashPointStatus":"open","isFavorite":false,"distanceFromLocation":0.07760059905591597,"offerText":null,"dealUrl":null},.........

我不确定我做错了什么，以及如何处理这个问题。感谢您的帮助

Answer 1

不同的网站有不同的登录方式，学习如何使用fiddler观看请求结构非常有用。下面的代码是根据浏览器请求编写的。但我无法使代码完美运行，因为我没有帐户（甚至没有注册）

from requests import Session
from bs4 import BeautifulSoup
import re

url = 'https://paytm.com/v1/api/getnearbysellers?child_site_id=1&site_id=1'

initial_url = 'https://paytm.com/nearby'

auth_code_url = r"https://accounts.paytm.com/oauth2/authorize?theme=mp-web&redirect_uri=https%3A%2F%2Fpaytm.com%2Fv1%2Fapi%2Fauthresponse&is_verification_excluded=false&client_id=paytm-web-secure&type=web_server&scope=paytm&response_type=code"
login_ = "https://accounts.paytm.com/oauth2/authorize?client_id=paytm-web-secure&scope=paytm&response_type=code&redirect_uri=https://paytm.com/v1/api/authresponse&theme=mp-web&state=null&is_verification_excluded=false&isSignup=true"

with Session() as sess:
    #sess.verify = False
    sess.headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/69.0.3494.0 Safari/537.36"
        }
    resp = sess.get(auth_code_url)
    auth_code = BeautifulSoup(resp.content,"lxml").find("div",{"id":"main-container"}).get("ng-init")
    auth_code = re.findall(r"(?<=authState.{4})(.*?)(?=\'|\")",auth_code)[0]
    print(auth_code)
    login_data = {
        "fakeusernameremembered":"",
        "fakepasswordremembered":"",
        "username":"xxxx", #your username
        "password":"xxxx", #your password
        "AUTH_STATE":auth_code

    }
    login = sess.post(login_,data = login_data)
    print(login.text)

    payload = {"distance":10,"endLimit":20,"latitude":26.8467088,"longitude":80.9461592,
       "searchFilter":[{"filterType":"SERVICE","value":"PAYMENT_POINT"}],
       "sortBy":{"DISTANCE_WISE_SORT":"ASC"},"startLimit":20,"channel":"web","version":2}

    resp = sess.get(initial_url)
    print(resp.cookies['XSRF-TOKEN'])
    sess.headers['X-XSRF-TOKEN'] = resp.cookies['XSRF-TOKEN']