Reversal API Guide

import urllib.request, urllib.parse, urllib.error, urllib.request, urllib.error, urllib.parse, hashlib
import requests
from hashids import Hashids
import datetime
import string
import random

# Enter Client Credentials
environment = 'https://test-openapi-hk.qfapi.com'
app_code = '3F504C39125E4886AB4741**********'
client_key = '5744993FBC034DBBB995FA**********'


# Create parameter values for data payload
current_time = datetime.datetime.now().replace(microsecond=0)                                
random_string = ''.join(random.choices(string.ascii_uppercase + string.digits, k=32))

print(current_time)

# Create signature
def make_req_sign(data, key):
    keys = list(data.keys())
    keys.sort()
    p = []
    for k in keys: 
        v = data[k]
        p.append('%s=%s'%(k,v))
    unsign_str = ('&'.join(p) + key).encode("utf-8")
    print(unsign_str)
    s = hashlib.md5(unsign_str).hexdigest()
    return s.upper()



# Body payload
txamt = '2500' #In USD,EUR,etc. Cent. Suggest value > 200 to avoid risk control
out_trade_no = '4MDGEJ7L496LAAU1V1HBY9HMOGWZWLXQ'
syssn = '20200305066100020000977812' 
txdtm = '2020-03-05 16:50:30' 
mchid = 'MNxMp11FV35qQN'
key = client_key

#data ={'txamt': txamt, 'out_trade_no': out_trade_no, 'syssn': syssn, 'txdtm': txdtm, 'udid': udid, 'mchid': mchid}
data ={'txamt': txamt, 'out_trade_no': out_trade_no, 'txdtm': txdtm, 'mchid': mchid}

r = requests.post(environment+"/trade/v1/reversal",data=data,headers={'X-QF-APPCODE':app_code,'X-QF-SIGN':make_req_sign(data, key)})

print(r.json())