def create_request(self, method, url, params, parse):
builder = UrlParamsBuilder()
if params and len(params):
if method in [HttpMethod.GET, HttpMethod.GET_SIGN]:
for key, value in params.items():
builder.put_url(key, value)
elif method in [HttpMethod.POST, HttpMethod.POST_SIGN]:
for key, value in params.items():
builder.put_post(key, value)
else:
raise HuobiApiException(HuobiApiException.EXEC_ERROR,
"[error] undefined HTTP method")
if method == HttpMethod.GET:
request = self.__create_request_by_get(url, builder)
elif method == HttpMethod.GET_SIGN:
request = self.__create_request_by_get_with_signature(url, builder)
elif method == HttpMethod.POST_SIGN:
request = self.__create_request_by_post_with_signature(url, builder)
elif method == HttpMethod.POST:
request = self.__create_request_by_post_with_signature(url, builder)
else:
raise HuobiApiException(HuobiApiException.INPUT_ERROR, "[Input] " + method + " is invalid http method")
request.json_parser = parse
return request
def check_symbol(symbol):
if not isinstance(symbol, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] symbol must be string")
if re.match(reg_ex, symbol):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + symbol + " is invalid symbol")
def check_currency(currency):
if not isinstance(currency, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] currency must be string")
if re.match(reg_ex, currency) is not None:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + currency + " is invalid currency")
def check_list(list_value, min_value, max_value, name):
if list_value is None:
return
if len(list_value) > max_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR, "[Input] " + name +
" is out of bound, the max size is " + str(max_value))
if len(list_value) < min_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR, "[Input] " + name +
" should contain " + str(min_value) + " item(s) at least")
def format_date(value, name):
if value is None:
return None
if not isinstance(value, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + name + " must be string")
try:
new_time = time.strptime(value, "%Y-%m-%d")
return time.strftime("%Y-%m-%d", new_time)
except:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " is not invalid date format")
def check_symbol_list(symbols):
if not isinstance(symbols, list):
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] symbols in subscription is not a list")
for symbol in symbols:
check_symbol(symbol)
def create_signature(api_key, secret_key, method, url, builder):
if api_key is None or secret_key is None or api_key == "" or secret_key == "":
raise HuobiApiException(HuobiApiException.KEY_MISSING,
"API key and secret key are required")
timestamp = utc_now()
builder.put_url("AccessKeyId", api_key)
builder.put_url("SignatureVersion", "2")
builder.put_url("SignatureMethod", "HmacSHA256")
builder.put_url("Timestamp", timestamp)
host = urllib.parse.urlparse(url).hostname
path = urllib.parse.urlparse(url).path
# 对参数进行排序:
keys = sorted(builder.param_map.keys())
# 加入&
qs0 = '&'.join([
'%s=%s' % (key, parse.quote(builder.param_map[key], safe=''))
for key in keys
])
# 请求方法，域名，路径，参数 后加入`\n`
payload0 = '%s\n%s\n%s\n%s' % (method, host, path, qs0)
dig = hmac.new(secret_key.encode('utf-8'),
msg=payload0.encode('utf-8'),
digestmod=hashlib.sha256).digest()
# 进行base64编码
s = base64.b64encode(dig).decode()
builder.put_url("Signature", s)
def check_range(value, min_value, max_value, name):
if value is None:
return
if min_value > value or value > max_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " is out of bound. " + str(value) +
" is not in [" + str(min_value) + "," + str(max_value) + "]")
def check_time_in_force(time_in_force, order_type):
if time_in_force is None:
return
if order_type in [OrderType.BUY_MARKET, OrderType.SELL_MARKET] \
and time_in_force in [TimeInForceType.GTC, TimeInForceType.BOC, TimeInForceType.FOK]:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] timeInForce not supported for market order")
def create_request_post_batch(self, method, url, params, parse):
builder = UrlParamsBuilder()
if params and len(params):
if method in [HttpMethod.POST, HttpMethod.POST_SIGN]:
if isinstance(params, list):
builder.post_list = params
else:
raise HuobiApiException(HuobiApiException.EXEC_ERROR,
"[error] undefined HTTP method")
request = self.__create_request_by_post_with_signature(url, builder)
request.json_parser = parse
return request
def check_response(dict_data):
status = dict_data.get("status", None)
code = dict_data.get("code", None)
success = dict_data.get("success", None)
if status and len(status):
if TypeCheck.is_basic(status): # for normal case
if status == "error":
err_code = dict_data.get("err-code", 0)
err_msg = dict_data.get("err-msg", "")
raise HuobiApiException(
HuobiApiException.EXEC_ERROR,
"[Executing] " + str(err_code) + ": " + err_msg)
elif status != "ok":
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[Invoking] Response is not expected: " + status)
elif TypeCheck.is_dict(
status
): # for https://status.huobigroup.com/api/v2/summary.json in example example/generic/get_system_status.py
if dict_data.get("page") and dict_data.get("components"):
pass
else:
raise HuobiApiException(
HuobiApiException.EXEC_ERROR,
"[Executing] System is in maintenances")
elif code:
code_int = int(code)
if code_int != 200:
err_code = dict_data.get("code", 0)
err_msg = dict_data.get("message", "")
raise HuobiApiException(
HuobiApiException.EXEC_ERROR,
"[Executing] " + str(err_code) + ": " + err_msg)
elif success is not None:
if bool(success) is False:
err_code = etf_result_check(dict_data.get("code"))
err_msg = dict_data.get("message", "")
if err_code == "":
raise HuobiApiException(HuobiApiException.EXEC_ERROR,
"[Executing] " + err_msg)
else:
raise HuobiApiException(
HuobiApiException.EXEC_ERROR,
"[Executing] " + str(err_code) + ": " + err_msg)
else:
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[Invoking] Status cannot be found in response.")
def on_error(self, error_message):
if self.request.error_handler is not None:
exception = HuobiApiException(HuobiApiException.SUBSCRIPTION_ERROR, error_message)
self.request.error_handler(exception)
self.logger.error("[Sub][" + str(self.id) + "] " + str(error_message))
def greater_or_equal(value, base, name):
if value is not None and value < base:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " should be greater than " + base)
def check_in_list(value, list_configed, name):
if (value is not None) and (value not in list_configed):
raise HuobiApiException(
HuobiApiException.INPUT_ERROR, "[Input] " + name +
" should be one in " + (",".join(list_configed)))
def check_should_none(value, name):
if value is not None:
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + name + " should be null")
