Exemple #1
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 def get_last_trade(self, symbol):
     request = RestfulRequest(self.__option)
     request.set_target("/market/trade")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     last_trade_var = LastTrade()
     last_trade_var.status = root_obj.get_string("status")
     last_trade_var.ts = root_obj.get_int("ts")
     last_trade_var.ch = root_obj.get_string("ch")
     obj = root_obj.get_object("tick")
     last_trade_var.ts_in_tick = obj.get_int("ts")
     last_trade_var.id_in_tick = obj.get_int("id")
     obj0 = obj.get_array("data")
     for item in obj0.array():
         trade_var = Trade()
         trade_var.amount = item.get_decimal("amount")
         trade_var.price = item.get_decimal("price")
         trade_var.ts = item.get_int("ts")
         trade_var.id = item.get_int("id")
         trade_var.direction = item.get_string("direction")
         trade_var.trade_id = item.get_int("trade-id")
         if last_trade_var.data is None:
             last_trade_var.data = list()
         last_trade_var.data.append(trade_var)
     return last_trade_var
Exemple #2
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 def get_aggregate_trades(self, symbol, from_id, start_time, end_time,
                          limit):
     request = RestfulRequest(self.__option)
     request.set_target("/api/v3/aggTrades")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("fromId", str(from_id))
     request.add_query_string("startTime", str(start_time))
     request.add_query_string("startTime", str(end_time))
     request.add_query_string("limit", str(limit))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     aggregate_trade_list_var = AggregateTradeList()
     for item in root_obj.array():
         aggregate_trade_var = AggregateTrade()
         aggregate_trade_var.id = item.get_int("a")
         aggregate_trade_var.price = item.get_decimal("p")
         aggregate_trade_var.qty = item.get_decimal("q")
         aggregate_trade_var.first_trade_id = item.get_int("f")
         aggregate_trade_var.last_trade_id = item.get_int("l")
         aggregate_trade_var.timestamp = item.get_int("T")
         aggregate_trade_var.is_buyer_maker = item.get_bool("m")
         aggregate_trade_var.is_best_match = item.get_bool("M")
         if aggregate_trade_list_var.data is None:
             aggregate_trade_list_var.data = list()
         aggregate_trade_list_var.data.append(aggregate_trade_var)
     return aggregate_trade_list_var
Exemple #3
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 def get_candlestick(self, symbol, period, size):
     request = RestfulRequest(self.__option)
     request.set_target("/market/history/kline")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("period", period)
     request.add_query_string("size", str(size))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     candlestick_var = Candlestick()
     candlestick_var.status = root_obj.get_string("status")
     obj = root_obj.get_array("data")
     for item in obj.array():
         candlestick_data_var = CandlestickData()
         candlestick_data_var.id = item.get_int("id")
         candlestick_data_var.amount = item.get_decimal("amount")
         candlestick_data_var.count = item.get_int("count")
         candlestick_data_var.open = item.get_decimal("open")
         candlestick_data_var.close = item.get_decimal("close")
         candlestick_data_var.low = item.get_decimal("low")
         candlestick_data_var.high = item.get_decimal("high")
         candlestick_data_var.vol = item.get_decimal("vol")
         if candlestick_var.data is None:
             candlestick_var.data = list()
         candlestick_var.data.append(candlestick_data_var)
     return candlestick_var
Exemple #4
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 def get_market_depth(self, symbol, depth, merge_type):
     request = RestfulRequest(self.__option)
     request.set_target("/market/depth")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("depth", str(depth))
     request.add_query_string("type", merge_type)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     depth_var = Depth()
     depth_var.status = root_obj.get_string("status")
     depth_var.ts = root_obj.get_int("ts")
     depth_var.ch = root_obj.get_string("ch")
     obj = root_obj.get_object("tick")
     obj0 = obj.get_array("bids")
     for item in obj0.array():
         quote_var = Quote()
         quote_var.price = item.get_decimal("[0]")
         quote_var.amount = item.get_decimal("[1]")
         if depth_var.bids is None:
             depth_var.bids = list()
         depth_var.bids.append(quote_var)
     obj1 = obj.get_array("asks")
     for item2 in obj1.array():
         quote_var3 = Quote()
         quote_var3.price = item2.get_decimal("[0]")
         quote_var3.amount = item2.get_decimal("[1]")
         if depth_var.asks is None:
             depth_var.asks = list()
         depth_var.asks.append(quote_var3)
     return depth_var
Exemple #5
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 def on_trade_event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     trade_clearing_update_var = TradeClearingUpdate()
     obj = root_obj.get_object("data")
     trade_clearing_update_var.symbol = obj.get_string_or_none("symbol")
     trade_clearing_update_var.order_id = obj.get_int_or_none("orderId")
     trade_clearing_update_var.trade_price = obj.get_string_or_none(
         "tradePrice")
     trade_clearing_update_var.trade_volume = obj.get_string_or_none(
         "tradeVolume")
     trade_clearing_update_var.order_side = obj.get_string_or_none(
         "orderSide")
     trade_clearing_update_var.order_type = obj.get_string_or_none(
         "orderType")
     trade_clearing_update_var.aggressor = obj.get_bool_or_none(
         "aggressor")
     trade_clearing_update_var.trade_id = obj.get_int_or_none("tradeId")
     trade_clearing_update_var.trade_time = obj.get_string_or_none(
         "tradeTime")
     trade_clearing_update_var.transact_fee = obj.get_string_or_none(
         "transactFee")
     trade_clearing_update_var.fee_deduct = obj.get_string_or_none(
         "feeDeduct")
     trade_clearing_update_var.fee_deduct_type = obj.get_string_or_none(
         "feeDeductType")
     on_trade(trade_clearing_update_var)
Exemple #6
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 def get_symbol(self):
     request = RestfulRequest(self.__option)
     request.set_target("/v1/common/symbols")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     json_checker = JsonChecker()
     json_checker.check_not_equal("stauts", "ok", root_obj)
     json_checker.report_error()
     symbols_var = Symbols()
     symbols_var.status = root_obj.get_string("status")
     obj = root_obj.get_array("data")
     for item in obj.array():
         symbols_data_var = SymbolsData()
         symbols_data_var.base_currency = item.get_string("base-currency")
         symbols_data_var.quote_currency = item.get_string("quote-currency")
         symbols_data_var.price_precision = item.get_int("price-precision")
         symbols_data_var.amount_precision = item.get_int(
             "amount-precision")
         symbols_data_var.symbol_partition = item.get_string(
             "symbol-partition")
         symbols_data_var.symbol = item.get_string("symbol")
         symbols_data_var.state = item.get_string("state")
         symbols_data_var.value_precision = item.get_int("value-precision")
         symbols_data_var.min_order_amt = item.get_decimal("min-order-amt")
         symbols_data_var.max_order_amt = item.get_decimal("max-order-amt")
         symbols_data_var.min_order_value = item.get_decimal(
             "min-order-value")
         symbols_data_var.leverage_ratio = item.get_int("leverage-ratio")
         if symbols_var.data is None:
             symbols_var.data = list()
         symbols_var.data.append(symbols_data_var)
     return symbols_var
Exemple #7
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 def on_echo_event_trigger(msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     json_checker = JsonChecker()
     json_checker.check_equal("op", "echo", root_obj)
     obj = root_obj.get_object_or_none("param")
     json_checker.check_equal("Name", name, obj)
     return json_checker.complete()
Exemple #8
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 def on_order_event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     order_update_var = OrderUpdate()
     obj = root_obj.get_object("data")
     order_update_var.event_type = obj.get_string_or_none("eventType")
     order_update_var.symbol = obj.get_string_or_none("symbol")
     order_update_var.order_id = obj.get_int_or_none("orderId")
     order_update_var.client_order_id = obj.get_string_or_none(
         "clientOrderId")
     order_update_var.type = obj.get_string_or_none("type")
     order_update_var.order_price = obj.get_string_or_none("orderPrice")
     order_update_var.order_size = obj.get_string_or_none("orderSize")
     order_update_var.type = obj.get_string_or_none("type")
     order_update_var.order_status = obj.get_string_or_none(
         "orderStatus")
     order_update_var.order_create_time = obj.get_int_or_none(
         "orderCreateTime")
     order_update_var.trade_price = obj.get_string_or_none("tradePrice")
     order_update_var.trade_volume = obj.get_string_or_none(
         "tradeVolume")
     order_update_var.trade_id = obj.get_int_or_none("tradeId")
     order_update_var.trade_time = obj.get_int_or_none("tradeTime")
     order_update_var.aggressor = obj.get_bool_or_none("aggressor")
     order_update_var.remain_amt = obj.get_string_or_none("remainAmt")
     order_update_var.last_act_time = obj.get_string_or_none(
         "lastActTime")
     on_order(order_update_var)
Exemple #9
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 def get_depth(self, symbol, limit):
     request = RestfulRequest(self.__option)
     request.set_target("/api/v3/depth")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("limit", str(limit))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     depth_var = Depth()
     depth_var.last_update_id = root_obj.get_int("lastUpdateId")
     obj = root_obj.get_array("bids")
     for item in obj.array():
         depth_entity_var = DepthEntity()
         depth_entity_var.price = item.get_decimal("[0]")
         depth_entity_var.qty = item.get_decimal("[1]")
         if depth_var.bids is None:
             depth_var.bids = list()
         depth_var.bids.append(depth_entity_var)
     obj0 = root_obj.get_array("asks")
     for item1 in obj0.array():
         depth_entity_var2 = DepthEntity()
         depth_entity_var2.price = item1.get_decimal("[0]")
         depth_entity_var2.qty = item1.get_decimal("[1]")
         if depth_var.asks is None:
             depth_var.asks = list()
         depth_var.asks.append(depth_entity_var2)
     return depth_var
Exemple #10
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 def on_candlestick_event_trigger(msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     json_checker = JsonChecker()
     json_checker.check_equal(
         "rep",
         CEIUtils.string_replace("market.{0}.kline.{1}", symbol,
                                 period), root_obj)
     return json_checker.complete()
Exemple #11
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 def on_depth_event_trigger(msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     json_checker = JsonChecker()
     json_checker.check_equal(
         "ch",
         CEIUtils.string_replace("market.{0}.depth.{1}", symbol,
                                 type_u), root_obj)
     return json_checker.complete()
Exemple #12
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 def on_second1event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     simple_info_var = SimpleInfo()
     simple_info_var.name = root_obj.get_string("Name")
     simple_info_var.number = root_obj.get_int("Number")
     simple_info_var.price = root_obj.get_decimal("Price")
     simple_info_var.status = root_obj.get_bool("Status")
     on_second1(simple_info_var)
Exemple #13
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 def on_ping_event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     ts = Timestamp()
     obj = root_obj.get_object("data")
     ts.timestamp = obj.get_int("ts")
     json_result = JsonWrapper()
     json_result.add_json_string("op", "pong")
     json_result.add_json_number("ts", ts.timestamp)
     connection.send(json_result.to_json_string())
Exemple #14
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 def get_timestamp(self):
     request = RestfulRequest(self.__option)
     request.set_target("/api/v3/time")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     timestamp_var = Timestamp()
     timestamp_var.server_time = root_obj.get_int("serverTime")
     return timestamp_var
Exemple #15
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 def get_currencies(self):
     request = RestfulRequest(self.__option)
     request.set_target("/v1/common/currencys")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     currencies_var = Currencies()
     currencies_var.status = root_obj.get_string("status")
     currencies_var.data = root_obj.get_string_array("data")
     return currencies_var
Exemple #16
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 def get_simple_info(self):
     request = RestfulRequest(self.__option)
     request.set_target("/restful/get/simpleInfo")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     simple_info_var = SimpleInfo()
     simple_info_var.name = root_obj.get_string("Name")
     simple_info_var.number = root_obj.get_int("Number")
     simple_info_var.price = root_obj.get_decimal("Price")
     simple_info_var.status = root_obj.get_bool("Status")
     return simple_info_var
Exemple #17
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 def get_timestamp(self):
     request = RestfulRequest(self.__option)
     request.set_target("/v1/common/timestamp")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     json_checker = JsonChecker()
     json_checker.check_not_equal("stauts", "ok", root_obj)
     json_checker.report_error()
     timestamp_var = Timestamp()
     timestamp_var.timestamp = root_obj.get_int("data")
     return timestamp_var
Exemple #18
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 def on_candlestick_event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     candlestick_data_var = CandlestickData()
     obj = root_obj.get_object("tick")
     candlestick_data_var.id = obj.get_int("id")
     candlestick_data_var.amount = obj.get_decimal("amount")
     candlestick_data_var.count = obj.get_int("count")
     candlestick_data_var.open = obj.get_decimal("open")
     candlestick_data_var.close = obj.get_decimal("close")
     candlestick_data_var.low = obj.get_decimal("low")
     candlestick_data_var.high = obj.get_decimal("high")
     candlestick_data_var.vol = obj.get_decimal("vol")
     on_candlestick(candlestick_data_var)
Exemple #19
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 def cancel_order(self, order_id):
     request = RestfulRequest(self.__option)
     request.set_target(
         CEIUtils.string_replace("/v1/order/orders/{0}/submitcancel",
                                 str(order_id)))
     request.set_method(RestfulRequest.Method.POST)
     Procedures.restful_auth(request, self.__option)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     order_idvar = OrderID()
     order_idvar.status = root_obj.get_string("status")
     order_idvar.data = root_obj.get_int("data")
     return order_idvar
Exemple #20
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 def get_accounts(self):
     request = RestfulRequest(self.__option)
     request.set_target("/v1/account/accounts")
     request.set_method(RestfulRequest.Method.GET)
     Procedures.restful_auth(request, self.__option)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     account_var = Account()
     account_var.status = root_obj.get_string("status")
     account_data_var = AccountData()
     obj = root_obj.get_object("data")
     account_data_var.id = obj.get_int("id")
     account_data_var.state = obj.get_string("state")
     account_data_var.type = obj.get_string("type")
     account_data_var.subtype = obj.get_string("subtype")
     return account_var
Exemple #21
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 def inputs_by_get(self, name, number, price, status):
     request = RestfulRequest(self.__option)
     request.set_target("/restful/get/inputsByGet")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("Name", name)
     request.add_query_string("Number", str(number))
     request.add_query_string("Price", str(price))
     request.add_query_string("Status", str(status))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     simple_info_var = SimpleInfo()
     simple_info_var.name = root_obj.get_string("Name")
     simple_info_var.number = root_obj.get_int("Number")
     simple_info_var.price = root_obj.get_decimal("Price")
     simple_info_var.status = root_obj.get_bool("Status")
     return simple_info_var
Exemple #22
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 def authentication(self, name, number):
     request = RestfulRequest(self.__option)
     post_msg = JsonWrapper()
     post_msg.add_json_number("Number", number)
     request.set_target("/restful/post/authentication")
     request.set_method(RestfulRequest.Method.POST)
     request.add_query_string("Name", name)
     request.set_post_body(post_msg.to_json_string())
     Procedures.restful_auth(request, self.__option)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     simple_info_var = SimpleInfo()
     simple_info_var.name = root_obj.get_string("Name")
     simple_info_var.number = root_obj.get_int("Number")
     simple_info_var.price = root_obj.get_decimal("Price")
     return simple_info_var
Exemple #23
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 def get_price_list(self):
     request = RestfulRequest(self.__option)
     request.set_target("/restful/get/priceList")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     price_list_var = PriceList()
     price_list_var.name = root_obj.get_string("Name")
     obj = root_obj.get_array("Prices")
     for item in obj.array():
         price_entity_var = PriceEntity()
         price_entity_var.price = item.get_decimal("[0]")
         price_entity_var.volume = item.get_decimal("[1]")
         if price_list_var.prices is None:
             price_list_var.prices = list()
         price_list_var.prices.append(price_entity_var)
     return price_list_var
Exemple #24
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 def place_order(self, account_id, symbol, order_type, amount, price):
     request = RestfulRequest(self.__option)
     post_msg = JsonWrapper()
     post_msg.add_json_string("account-Id", account_id)
     post_msg.add_json_string("symbol", symbol)
     post_msg.add_json_string("orderType", order_type)
     post_msg.add_json_string("amount", amount)
     post_msg.add_json_string("price", price)
     request.set_target("/v1/order/orders/place")
     request.set_method(RestfulRequest.Method.POST)
     request.set_post_body(post_msg.to_json_string())
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     order_idvar = OrderID()
     order_idvar.status = root_obj.get_string("status")
     order_idvar.data = root_obj.get_int("data")
     return order_idvar
Exemple #25
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 def get_info_list(self):
     request = RestfulRequest(self.__option)
     request.set_target("/restful/get/infoList")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     info_list_var = InfoList()
     info_list_var.name = root_obj.get_string("Name")
     obj = root_obj.get_array("Values")
     for item in obj.array():
         info_entity_var = InfoEntity()
         info_entity_var.name = item.get_string("Name")
         info_entity_var.info_value = item.get_string("InfoValue")
         if info_list_var.values is None:
             info_list_var.values = list()
         info_list_var.values.append(info_entity_var)
     return info_list_var
Exemple #26
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 def post_inputs(self, this, price, number, status):
     request = RestfulRequest(self.__option)
     post_msg = JsonWrapper()
     post_msg.add_json_string("Name", this)
     post_msg.add_json_number("Price", price)
     post_msg.add_json_number("Number", number)
     post_msg.add_json_boolean("Status_1", status)
     request.set_target("/restful/post/echo")
     request.set_method(RestfulRequest.Method.POST)
     request.set_post_body(post_msg.to_json_string())
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     simple_info_var = SimpleInfo()
     simple_info_var.name = root_obj.get_string("Name")
     simple_info_var.number = root_obj.get_int("Number")
     simple_info_var.price = root_obj.get_decimal("Price")
     simple_info_var.status = root_obj.get_bool("Status_1")
     return simple_info_var
Exemple #27
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 def on_candlestick_event_event(connection, msg):
     root_obj = JsonWrapper.parse_from_string(msg.get_string())
     candlestick_var = Candlestick()
     obj = root_obj.get_array("data")
     for item in obj.array():
         candlestick_data_var = CandlestickData()
         candlestick_data_var.id = item.get_int("id")
         candlestick_data_var.amount = item.get_decimal("amount")
         candlestick_data_var.count = item.get_int("count")
         candlestick_data_var.open = item.get_decimal("open")
         candlestick_data_var.close = item.get_decimal("close")
         candlestick_data_var.low = item.get_decimal("low")
         candlestick_data_var.high = item.get_decimal("high")
         candlestick_data_var.vol = item.get_decimal("vol")
         if candlestick_var.data is None:
             candlestick_var.data = list()
         candlestick_var.data.append(candlestick_data_var)
     on_candlestick(candlestick_var)
Exemple #28
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 def get_model_info(self):
     request = RestfulRequest(self.__option)
     request.set_target("/restful/get/modelInfo")
     request.set_method(RestfulRequest.Method.GET)
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     json_checker = JsonChecker()
     json_checker.check_equal("aaa", "aa", root_obj)
     json_checker.report_error()
     model_info_var = ModelInfo()
     model_info_var.name = root_obj.get_string("Name")
     obj = root_obj.get_object("DataL1")
     obj0 = obj.get_object("DataL2")
     model_value_var = ModelValue()
     obj1 = obj0.get_object("Value")
     model_value_var.name = obj1.get_string("Name")
     model_value_var.value = obj1.get_int("Value")
     model_info_var.value = model_value_var
     return model_info_var
Exemple #29
0
 def get_candlestick_data(self, symbol, interval, start_time, end_time,
                          limit):
     request = RestfulRequest(self.__option)
     request.set_target("/api/v3/klines")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("interval", interval)
     request.add_query_string("startTime", str(start_time))
     request.add_query_string("endTime", str(end_time))
     request.add_query_string("limit", str(limit))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     candlestick_data_list_var = CandlestickDataList()
     for item in root_obj.array():
         candlestick_data_var = CandlestickData()
         candlestick_data_var.open = item.get_decimal("\\[0]")
         candlestick_data_var.high = item.get_decimal("\\[1]")
         if candlestick_data_list_var.data is None:
             candlestick_data_list_var.data = list()
         candlestick_data_list_var.data.append(candlestick_data_var)
     return candlestick_data_list_var
Exemple #30
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 def get_trade(self, symbol, limit):
     request = RestfulRequest(self.__option)
     request.set_target("/api/v3/trades")
     request.set_method(RestfulRequest.Method.GET)
     request.add_query_string("symbol", symbol)
     request.add_query_string("limit", str(limit))
     response = RestfulConnection.query(request)
     root_obj = JsonWrapper.parse_from_string(response.get_string())
     trade_list_var = TradeList()
     for item in root_obj.array():
         trade_var = Trade()
         trade_var.id = item.get_int("id")
         trade_var.price = item.get_decimal("price")
         trade_var.qty = item.get_decimal("qty")
         trade_var.quote_qty = item.get_decimal("quoteQty")
         trade_var.time = item.get_int("time")
         trade_var.is_buyer_maker = item.get_bool("isBuyerMaker")
         trade_var.is_best_match = item.get_bool("isBestMatch")
         if trade_list_var.data is None:
             trade_list_var.data = list()
         trade_list_var.data.append(trade_var)
     return trade_list_var