如何签署OKEx POST API请求？
如何签署OKEx POST API请求？
提问于 2021-12-22 14:48:19
以下是这个问题How to sign an OKEx API request?的结果和一些答案：
import hmac
import base64
import requests
import datetime
import json
from config import KEY, SECRET, PASS, ROOT_URL
def get_time():
now = datetime.datetime.utcnow()
t = now.isoformat("T", "milliseconds")
return t + "Z"
def signature(timestamp, request_type, endpoint, body, secret):
if body != '':
body = json.dumps(body)
message = str(timestamp) + str.upper(request_type) + endpoint + body
print(message)
mac = hmac.new(bytes(secret, encoding='utf-8'), bytes(message, encoding='utf-8'), digestmod='sha256')
d = mac.digest()
return base64.b64encode(d)
def get_header(request_type, endpoint, body):
time = get_time()
header = dict()
header['CONTENT-TYPE'] = 'application/json'
header['OK-ACCESS-KEY'] = KEY
header['OK-ACCESS-SIGN'] = signature(time, request_type, endpoint, body, SECRET)
header['OK-ACCESS-TIMESTAMP'] = str(time)
header['OK-ACCESS-PASSPHRASE'] = PASS
return header
def get(endpoint, body=''):
url = ROOT_URL + endpoint
header = get_header('GET', endpoint, body)
return requests.get(url, headers=header)
def post(endpoint, body=''):
url = ROOT_URL + endpoint
header = get_header('POST', endpoint, body)
return requests.post(url, headers=header)其中KEY, SECRET, PASS分别是API密钥、密钥和传递短语；ROOT_URL是'https://www.okex.com'。
问题
GET请求工作非常正常，所以当我运行以下命令时，没有问题：
ENDPOINT = '/api/v5/account/balance'
BODY = ''
response = get(ENDPOINT)
response.json()但是，当我试图通过POST请求下订单时，如下所示：
ENDPOINT = '/api/v5/trade/order'
BODY = {"instId":"BTC-USDT",
"tdMode":"cash",
"side":"buy",
"ordType":"market",
"sz":"1"}
response = post(ENDPOINT, body=BODY)
response.json()我得到以下输出，即它不接受签名：
{'msg': 'Invalid Sign', 'code': '50113'}相关问题
在这个Can't figure out how to send a signed POST request to OKEx中提供了一个答案，但是它对我不起作用，因为我已经使用了建议的URL。在这里，Unable to send a post requests OKEX Invalid Signature提出了大致相同的问题，但是没有任何活动可能是由于格式引起的，所以我想我应该重新发布并详细说明。
OKEX文档
文档只需指定The API endpoints of Trade require authentication (https://www.okex.com/docs-v5/en/?python#rest-api-authentication-signature)。但是他们并没有提到这两种方法之间有什么区别。除此之外，就我所能看到的情况而言，我正在将所有必需的参数包括在post请求的正文中。
如果能对此提出意见，我将不胜感激。
非常感谢！
回答 3
Stack Overflow用户
发布于 2022-03-18 08:01:21
我遇到了同样的问题，并解决了它。我使用了新的域名okex.com。这是我的密码。
def set_userinfo(self):
position_path = "/api/v5/account/set-position-mode"
try:
self.get_header("POST", position_path, {"posMode":"net_mode"})
resp = requests.post(url=self.base_url+position_path, headers=self.headers, json={"posMode":"long_short_mode"}).json()
except Exception as e:
log.error("OK set_userinfo error={} type={}".format(f'{e}', f'{type(e)}'))
def get_header(self, request_type, endpoint, body=''):
timestamp = self.get_time()
self.headers["OK-ACCESS-TIMESTAMP"] = timestamp
self.headers["OK-ACCESS-SIGN"] = self.signature(timestamp, request_type, endpoint, body)
def signature(self, timestamp, request_type, endpoint, body):
if body != '':
body = json.dumps(body)
message = str(timestamp) + str.upper(request_type) + endpoint + body
mac = hmac.new(bytes(self.secret_key, encoding='utf-8'), bytes(message, encoding='utf-8'), digestmod='sha256').digest()
return base64.b64encode(mac)Stack Overflow用户
发布于 2022-06-14 17:03:57
我也解决了同样的问题。签名()中的'body‘和get_header()中的’body‘都应该是json。因此，您应该添加以下代码：
if str(body) == '{}' or str(body) == 'None':
body = ''
else:
body = json.dumps(body)Stack Overflow用户
发布于 2022-11-14 04:11:00
我遇到了同样的问题，并使用下面的代码片段解决了这个问题，这个想法来自于https://stackoverflow.com/a/68115787/20497127，但是我通过添加POST功能做了一些修改
APIKEY = "" # input key
APISECRET = "" #input secret
PASS = "" #input passphrase
BASE_URL = 'https://www.okx.com'
def send_signed_request(http_method, url_path, payload={}):
def get_time():
return dt.datetime.utcnow().isoformat()[:-3]+'Z'
def signature(timestamp, method, request_path, body, secret_key):
if str(body) == '{}' or str(body) == 'None':
body = ''
message = str(timestamp) + str.upper(method) + request_path + str(body)
mac = hmac.new(bytes(secret_key, encoding='utf8'), bytes(message, encoding='utf-8'), digestmod='sha256')
d = mac.digest()
return base64.b64encode(d)
# set request header
def get_header(request='GET', endpoint='', body:dict=dict()):
cur_time = get_time()
header = dict()
header['CONTENT-TYPE'] = 'application/json'
header['OK-ACCESS-KEY'] = APIKEY
header['OK-ACCESS-SIGN'] = signature(cur_time, request, endpoint , body, APISECRET)
header['OK-ACCESS-TIMESTAMP'] = str(cur_time)
header['OK-ACCESS-PASSPHRASE'] = PASS
# demo trading: need to set x-simulated-trading=1, live trading is 0
header['x-simulated-trading'] = '1'
return header
url = BASE_URL + url_path
header = get_header(http_method, url_path, payload)
print(url)
print(header)
if http_method == 'GET':
response = requests.get(url, headers=header)
elif http_method == 'POST':
response = requests.post(url, headers=header, data=payload)
return response.json()
# this will run get requests
res = send_signed_request("GET", "/api/v5/account/balance", payload={})
# this will run post requests
data = {
"instId": "BTC-USDT",
"tdMode": "cross",
"side": "sell",
"ccy":"USDT",
"ordType": "limit",
"px": "100000",
"sz": "0.01"
}
res = send_signed_request("POST", "/api/v5/trade/order", payload=json.dumps(data))页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/70450871
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