快递鸟查询demo

import json
from pprint import pprint

import requests
import hashlib
from base64 import b64encode


class KdNiaoAPI:
    """快递鸟查询接口"""
    def __init__(self):
    # ID和Key请到官网申请：http://www.kdniao.com/ServiceApply.aspx
        self.EBusinessID = '*'
        self.AppKey = '*'
        self.ReqURL = 'http://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx'

    def query(self, shipper_code, logistic_code):
        request_data = {'OrderCode': '',
                        'ShipperCode': shipper_code,
                        'LogisticCode': logistic_code}
        request_data = json.dumps(request_data)
        sign = self.sign(request_data)
        params = {
            "RequestData": request_data,
            "EBusinessID": self.EBusinessID,
            "RequestType": "1002",
            "DataSign": sign,
            "DataType": "2"
        }
        result = self.send_post(**params)
        return result

    def sign(self, string):
        string += self.AppKey
        m = hashlib.md5()
        m.update(string.encode('utf-8'))
        sign_data = m.digest().hex()
        sign_data = b64encode(sign_data.encode('utf-8')).decode('utf-8')
        return sign_data

    def send_post(self, **params):
        req = requests.request('post', self.ReqURL, data=params)
        resp = req.content.decode('utf-8')
        return resp


k = KdNiaoAPI()
# 需要获取快递公司的编号
res = k.query('SF', '12345678')
j = json.loads(res)
pprint(j)