# -*- coding: utf-8 -*-

# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code

from ccxt.async_support.base.exchange import Exchange
import math
from ccxt.base.errors import ExchangeError
from ccxt.base.errors import AuthenticationError
from ccxt.base.errors import PermissionDenied
from ccxt.base.errors import AccountSuspended
from ccxt.base.errors import ArgumentsRequired
from ccxt.base.errors import BadRequest
from ccxt.base.errors import BadSymbol
from ccxt.base.errors import InsufficientFunds
from ccxt.base.errors import InvalidOrder
from ccxt.base.errors import OrderNotFound
from ccxt.base.errors import CancelPending
from ccxt.base.errors import DuplicateOrderId
from ccxt.base.errors import NotSupported
from ccxt.base.errors import DDoSProtection
from ccxt.base.decimal_to_precision import ROUND
from ccxt.base.decimal_to_precision import DECIMAL_PLACES
from ccxt.base.decimal_to_precision import TICK_SIZE


class phemex(Exchange):

    def describe(self):
        return self.deep_extend(super(phemex, self).describe(), {
            'id': 'phemex',
            'name': 'Phemex',
            'countries': ['CN'],  # China
            'rateLimit': 100,
            'version': 'v1',
            'certified': False,
            'pro': True,
            'has': {
                'cancelAllOrders': True,  # swap contracts only
                'cancelOrder': True,
                'createOrder': True,
                'fetchBalance': True,
                'fetchClosedOrders': True,
                'fetchCurrencies': True,
                'fetchDepositAddress': True,
                'fetchDeposits': True,
                'fetchMarkets': True,
                'fetchMyTrades': True,
                'fetchOHLCV': True,
                'fetchOpenOrders': True,
                'fetchOrder': True,
                'fetchOrderBook': True,
                'fetchOrders': True,
                'fetchTicker': True,
                'fetchTrades': True,
                'fetchWithdrawals': True,
            },
            'urls': {
                'logo': 'https://user-images.githubusercontent.com/1294454/85225056-221eb600-b3d7-11ea-930d-564d2690e3f6.jpg',
                'test': {
                    'v1': 'https://testnet-api.phemex.com/v1',
                    'public': 'https://testnet-api.phemex.com/exchange/public',
                    'private': 'https://testnet-api.phemex.com',
                },
                'api': {
                    'v1': 'https://api.phemex.com/v1',
                    'public': 'https://api.phemex.com/exchange/public',
                    'private': 'https://api.phemex.com',
                },
                'www': 'https://phemex.com',
                'doc': 'https://github.com/phemex/phemex-api-docs',
                'fees': 'https://phemex.com/fees-conditions',
                'referral': 'https://phemex.com/register?referralCode=EDNVJ',
            },
            'timeframes': {
                '1m': '60',
                '3m': '180',
                '5m': '300',
                '15m': '900',
                '30m': '1800',
                '1h': '3600',
                '2h': '7200',
                '3h': '10800',
                '4h': '14400',
                '6h': '21600',
                '12h': '43200',
                '1d': '86400',
                '1w': '604800',
                '1M': '2592000',
            },
            'api': {
                'public': {
                    'get': [
                        'cfg/v2/products',  # spot + contracts
                        'products',  # contracts only
                        'nomics/trades',  # ?market=<symbol>&since=<since>
                        'md/kline',  # ?from=1589811875&resolution=1800&symbol=sBTCUSDT&to=1592457935
                    ],
                },
                'v1': {
                    'get': [
                        'md/orderbook',  # ?symbol=<symbol>&id=<id>
                        'md/trade',  # ?symbol=<symbol>&id=<id>
                        'md/ticker/24hr',  # ?symbol=<symbol>&id=<id>
                        'md/ticker/24hr/all',  # ?id=<id>
                        'md/spot/ticker/24hr',  # ?symbol=<symbol>&id=<id>
                        'md/spot/ticker/24hr/all',  # ?symbol=<symbol>&id=<id>
                        'exchange/public/products',  # contracts only
                    ],
                },
                'private': {
                    'get': [
                        # spot
                        'spot/orders/active',  # ?symbol=<symbol>&orderID=<orderID>
                        # 'spot/orders/active',  # ?symbol=<symbol>&clOrDID=<clOrdID>
                        'spot/orders',  # ?symbol=<symbol>
                        'spot/wallets',  # ?currency=<currency>
                        'exchange/spot/order',  # ?symbol=<symbol>&ordStatus=<ordStatus1,orderStatus2>ordType=<ordType1,orderType2>&start=<start>&end=<end>&limit=<limit>&offset=<offset>
                        'exchange/spot/order/trades',  # ?symbol=<symbol>&start=<start>&end=<end>&limit=<limit>&offset=<offset>
                        # swap
                        'accounts/accountPositions',  # ?currency=<currency>
                        'orders/activeList',  # ?symbol=<symbol>
                        'exchange/order/list',  # ?symbol=<symbol>&start=<start>&end=<end>&offset=<offset>&limit=<limit>&ordStatus=<ordStatus>&withCount=<withCount>
                        'exchange/order',  # ?symbol=<symbol>&orderID=<orderID1,orderID2>
                        # 'exchange/order',  # ?symbol=<symbol>&clOrdID=<clOrdID1,clOrdID2>
                        'exchange/order/trade',  # ?symbol=<symbol>&start=<start>&end=<end>&limit=<limit>&offset=<offset>&withCount=<withCount>
                        'phemex-user/users/children',  # ?offset=<offset>&limit=<limit>&withCount=<withCount>
                        'phemex-user/wallets/v2/depositAddress',  # ?_t=1592722635531&currency=USDT
                        'exchange/margins/transfer',  # ?start=<start>&end=<end>&offset=<offset>&limit=<limit>&withCount=<withCount>
                        'exchange/wallets/confirm/withdraw',  # ?code=<withdrawConfirmCode>
                        'exchange/wallets/withdrawList',  # ?currency=<currency>&limit=<limit>&offset=<offset>&withCount=<withCount>
                        'exchange/wallets/depositList',  # ?currency=<currency>&offset=<offset>&limit=<limit>
                        'exchange/wallets/v2/depositAddress',  # ?currency=<currency>
                    ],
                    'post': [
                        # spot
                        'spot/orders',
                        # swap
                        'orders',
                        'positions/assign',  # ?symbol=<symbol>&posBalance=<posBalance>&posBalanceEv=<posBalanceEv>
                        'exchange/wallets/transferOut',
                        'exchange/wallets/transferIn',
                        'exchange/margins',
                        'exchange/wallets/createWithdraw',  # ?otpCode=<otpCode>
                        'exchange/wallets/cancelWithdraw',
                        'exchange/wallets/createWithdrawAddress',  # ?otpCode={optCode}
                    ],
                    'put': [
                        # spot
                        'spot/orders',  # ?symbol=<symbol>&orderID=<orderID>&origClOrdID=<origClOrdID>&clOrdID=<clOrdID>&priceEp=<priceEp>&baseQtyEV=<baseQtyEV>&quoteQtyEv=<quoteQtyEv>&stopPxEp=<stopPxEp>
                        # swap
                        'orders/replace',  # ?symbol=<symbol>&orderID=<orderID>&origClOrdID=<origClOrdID>&clOrdID=<clOrdID>&price=<price>&priceEp=<priceEp>&orderQty=<orderQty>&stopPx=<stopPx>&stopPxEp=<stopPxEp>&takeProfit=<takeProfit>&takeProfitEp=<takeProfitEp>&stopLoss=<stopLoss>&stopLossEp=<stopLossEp>&pegOffsetValueEp=<pegOffsetValueEp>&pegPriceType=<pegPriceType>
                        'positions/leverage',  # ?symbol=<symbol>&leverage=<leverage>&leverageEr=<leverageEr>
                        'positions/riskLimit',  # ?symbol=<symbol>&riskLimit=<riskLimit>&riskLimitEv=<riskLimitEv>
                    ],
                    'delete': [
                        # spot
                        'spot/orders',  # ?symbol=<symbol>&orderID=<orderID>
                        # 'spot/orders',  # ?symbol=<symbol>&clOrdID=<clOrdID>
                        # swap
                        'orders/cancel',  # ?symbol=<symbol>&orderID=<orderID>
                        'orders',  # ?symbol=<symbol>&orderID=<orderID1>,<orderID2>,<orderID3>
                        'orders/all',  # ?symbol=<symbol>&untriggered=<untriggered>&text=<text>
                    ],
                },
            },
            'precisionMode': TICK_SIZE,
            'fees': {
                'trading': {
                    'tierBased': False,
                    'percentage': True,
                    'taker': 0.1 / 100,
                    'maker': 0.1 / 100,
                },
            },
            'requiredCredentials': {
                'apiKey': True,
                'secret': True,
            },
            'exceptions': {
                'exact': {
                    # not documented
                    '412': BadRequest,  # {"code":412,"msg":"Missing parameter - resolution","data":null}
                    '6001': BadRequest,  # {"error":{"code":6001,"message":"invalid argument"},"id":null,"result":null}
                    # documented
                    '19999': BadRequest,  # REQUEST_IS_DUPLICATED Duplicated request ID
                    '10001': DuplicateOrderId,  # OM_DUPLICATE_ORDERID Duplicated order ID
                    '10002': OrderNotFound,  # OM_ORDER_NOT_FOUND Cannot find order ID
                    '10003': CancelPending,  # OM_ORDER_PENDING_CANCEL Cannot cancel while order is already in pending cancel status
                    '10004': CancelPending,  # OM_ORDER_PENDING_REPLACE Cannot cancel while order is already in pending cancel status
                    '10005': CancelPending,  # OM_ORDER_PENDING Cannot cancel while order is already in pending cancel status
                    '11001': InsufficientFunds,  # TE_NO_ENOUGH_AVAILABLE_BALANCE Insufficient available balance
                    '11002': InvalidOrder,  # TE_INVALID_RISK_LIMIT Invalid risk limit value
                    '11003': InsufficientFunds,  # TE_NO_ENOUGH_BALANCE_FOR_NEW_RISK_LIMIT Insufficient available balance
                    '11004': InvalidOrder,  # TE_INVALID_LEVERAGE invalid input or new leverage is over maximum allowed leverage
                    '11005': InsufficientFunds,  # TE_NO_ENOUGH_BALANCE_FOR_NEW_LEVERAGE Insufficient available balance
                    '11006': ExchangeError,  # TE_CANNOT_CHANGE_POSITION_MARGIN_WITHOUT_POSITION Position size is zero. Cannot change margin
                    '11007': ExchangeError,  # TE_CANNOT_CHANGE_POSITION_MARGIN_FOR_CROSS_MARGIN Cannot change margin under CrossMargin
                    '11008': ExchangeError,  # TE_CANNOT_REMOVE_POSITION_MARGIN_MORE_THAN_ADDED exceeds the maximum removable Margin
                    '11009': ExchangeError,  # TE_CANNOT_REMOVE_POSITION_MARGIN_DUE_TO_UNREALIZED_PNL exceeds the maximum removable Margin
                    '11010': InsufficientFunds,  # TE_CANNOT_ADD_POSITION_MARGIN_DUE_TO_NO_ENOUGH_AVAILABLE_BALANCE Insufficient available balance
                    '11011': InvalidOrder,  # TE_REDUCE_ONLY_ABORT Cannot accept reduce only order
                    '11012': InvalidOrder,  # TE_REPLACE_TO_INVALID_QTY Order quantity Error
                    '11013': InvalidOrder,  # TE_CONDITIONAL_NO_POSITION Position size is zero. Cannot determine conditional order's quantity
                    '11014': InvalidOrder,  # TE_CONDITIONAL_CLOSE_POSITION_WRONG_SIDE Close position conditional order has the same side
                    '11015': InvalidOrder,  # TE_CONDITIONAL_TRIGGERED_OR_CANCELED
                    '11016': BadRequest,  # TE_ADL_NOT_TRADING_REQUESTED_ACCOUNT Request is routed to the wrong trading engine
                    '11017': ExchangeError,  # TE_ADL_CANNOT_FIND_POSITION Cannot find requested position on current account
                    '11018': ExchangeError,  # TE_NO_NEED_TO_SETTLE_FUNDING The current account does not need to pay a funding fee
                    '11019': ExchangeError,  # TE_FUNDING_ALREADY_SETTLED The current account already pays the funding fee
                    '11020': ExchangeError,  # TE_CANNOT_TRANSFER_OUT_DUE_TO_BONUS Withdraw to wallet needs to remove all remaining bonus. However if bonus is used by position or order cost, withdraw fails.
                    '11021': ExchangeError,  # TE_INVALID_BONOUS_AMOUNT  # Grpc command cannot be negative number Invalid bonus amount
                    '11022': AccountSuspended,  # TE_REJECT_DUE_TO_BANNED Account is banned
                    '11023': ExchangeError,  # TE_REJECT_DUE_TO_IN_PROCESS_OF_LIQ Account is in the process of liquidation
                    '11024': ExchangeError,  # TE_REJECT_DUE_TO_IN_PROCESS_OF_ADL Account is in the process of auto-deleverage
                    '11025': BadRequest,  # TE_ROUTE_ERROR Request is routed to the wrong trading engine
                    '11026': ExchangeError,  # TE_UID_ACCOUNT_MISMATCH
                    '11027': BadSymbol,  # TE_SYMBOL_INVALID Invalid number ID or name
                    '11028': BadSymbol,  # TE_CURRENCY_INVALID Invalid currency ID or name
                    '11029': ExchangeError,  # TE_ACTION_INVALID Unrecognized request type
                    '11030': ExchangeError,  # TE_ACTION_BY_INVALID
                    '11031': DDoSProtection,  # TE_SO_NUM_EXCEEDS Number of total conditional orders exceeds the max limit
                    '11032': DDoSProtection,  # TE_AO_NUM_EXCEEDS Number of total active orders exceeds the max limit
                    '11033': DuplicateOrderId,  # TE_ORDER_ID_DUPLICATE Duplicated order ID
                    '11034': InvalidOrder,  # TE_SIDE_INVALID Invalid side
                    '11035': InvalidOrder,  # TE_ORD_TYPE_INVALID Invalid OrderType
                    '11036': InvalidOrder,  # TE_TIME_IN_FORCE_INVALID Invalid TimeInForce
                    '11037': InvalidOrder,  # TE_EXEC_INST_INVALID Invalid ExecType
                    '11038': InvalidOrder,  # TE_TRIGGER_INVALID Invalid trigger type
                    '11039': InvalidOrder,  # TE_STOP_DIRECTION_INVALID Invalid stop direction type
                    '11040': InvalidOrder,  # TE_NO_MARK_PRICE Cannot get valid mark price to create conditional order
                    '11041': InvalidOrder,  # TE_NO_INDEX_PRICE Cannot get valid index price to create conditional order
                    '11042': InvalidOrder,  # TE_NO_LAST_PRICE Cannot get valid last market price to create conditional order
                    '11043': InvalidOrder,  # TE_RISING_TRIGGER_DIRECTLY Conditional order would be triggered immediately
                    '11044': InvalidOrder,  # TE_FALLING_TRIGGER_DIRECTLY Conditional order would be triggered immediately
                    '11045': InvalidOrder,  # TE_TRIGGER_PRICE_TOO_LARGE Conditional order trigger price is too high
                    '11046': InvalidOrder,  # TE_TRIGGER_PRICE_TOO_SMALL Conditional order trigger price is too low
                    '11047': InvalidOrder,  # TE_BUY_TP_SHOULD_GT_BASE TakeProfile BUY conditional order trigger price needs to be greater than reference price
                    '11048': InvalidOrder,  # TE_BUY_SL_SHOULD_LT_BASE StopLoss BUY condition order price needs to be less than the reference price
                    '11049': InvalidOrder,  # TE_BUY_SL_SHOULD_GT_LIQ StopLoss BUY condition order price needs to be greater than liquidation price or it will not trigger
                    '11050': InvalidOrder,  # TE_SELL_TP_SHOULD_LT_BASE TakeProfile SELL conditional order trigger price needs to be less than reference price
                    '11051': InvalidOrder,  # TE_SELL_SL_SHOULD_LT_LIQ StopLoss SELL condition order price needs to be less than liquidation price or it will not trigger
                    '11052': InvalidOrder,  # TE_SELL_SL_SHOULD_GT_BASE StopLoss SELL condition order price needs to be greater than the reference price
                    '11053': InvalidOrder,  # TE_PRICE_TOO_LARGE
                    '11054': InvalidOrder,  # TE_PRICE_WORSE_THAN_BANKRUPT Order price cannot be more aggressive than bankrupt price if self order has instruction to close a position
                    '11055': InvalidOrder,  # TE_PRICE_TOO_SMALL Order price is too low
                    '11056': InvalidOrder,  # TE_QTY_TOO_LARGE Order quantity is too large
                    '11057': InvalidOrder,  # TE_QTY_NOT_MATCH_REDUCE_ONLY Does not allow ReduceOnly order without position
                    '11058': InvalidOrder,  # TE_QTY_TOO_SMALL Order quantity is too small
                    '11059': InvalidOrder,  # TE_TP_SL_QTY_NOT_MATCH_POS Position size is zero. Cannot accept any TakeProfit or StopLoss order
                    '11060': InvalidOrder,  # TE_SIDE_NOT_CLOSE_POS TakeProfit or StopLoss order has wrong side. Cannot close position
                    '11061': CancelPending,  # TE_ORD_ALREADY_PENDING_CANCEL Repeated cancel request
                    '11062': InvalidOrder,  # TE_ORD_ALREADY_CANCELED Order is already canceled
                    '11063': InvalidOrder,  # TE_ORD_STATUS_CANNOT_CANCEL Order is not able to be canceled under current status
                    '11064': InvalidOrder,  # TE_ORD_ALREADY_PENDING_REPLACE Replace request is rejected because order is already in pending replace status
                    '11065': InvalidOrder,  # TE_ORD_REPLACE_NOT_MODIFIED Replace request does not modify any parameters of the order
                    '11066': InvalidOrder,  # TE_ORD_STATUS_CANNOT_REPLACE Order is not able to be replaced under current status
                    '11067': InvalidOrder,  # TE_CANNOT_REPLACE_PRICE Market conditional order cannot change price
                    '11068': InvalidOrder,  # TE_CANNOT_REPLACE_QTY Condtional order for closing position cannot change order quantity, since the order quantity is determined by position size already
                    '11069': ExchangeError,  # TE_ACCOUNT_NOT_IN_RANGE The account ID in the request is not valid or is not in the range of the current process
                    '11070': BadSymbol,  # TE_SYMBOL_NOT_IN_RANGE The symbol is invalid
                    '11071': InvalidOrder,  # TE_ORD_STATUS_CANNOT_TRIGGER
                    '11072': InvalidOrder,  # TE_TKFR_NOT_IN_RANGE The fee value is not valid
                    '11073': InvalidOrder,  # TE_MKFR_NOT_IN_RANGE The fee value is not valid
                    '11074': InvalidOrder,  # TE_CANNOT_ATTACH_TP_SL Order request cannot contain TP/SL parameters when the account already has positions
                    '11075': InvalidOrder,  # TE_TP_TOO_LARGE TakeProfit price is too large
                    '11076': InvalidOrder,  # TE_TP_TOO_SMALL TakeProfit price is too small
                    '11077': InvalidOrder,  # TE_TP_TRIGGER_INVALID Invalid trigger type
                    '11078': InvalidOrder,  # TE_SL_TOO_LARGE StopLoss price is too large
                    '11079': InvalidOrder,  # TE_SL_TOO_SMALL StopLoss price is too small
                    '11080': InvalidOrder,  # TE_SL_TRIGGER_INVALID Invalid trigger type
                    '11081': InvalidOrder,  # TE_RISK_LIMIT_EXCEEDS Total potential position breaches current risk limit
                    '11082': InsufficientFunds,  # TE_CANNOT_COVER_ESTIMATE_ORDER_LOSS The remaining balance cannot cover the potential unrealized PnL for self new order
                    '11083': InvalidOrder,  # TE_TAKE_PROFIT_ORDER_DUPLICATED TakeProfit order already exists
                    '11084': InvalidOrder,  # TE_STOP_LOSS_ORDER_DUPLICATED StopLoss order already exists
                    '11085': DuplicateOrderId,  # TE_CL_ORD_ID_DUPLICATE ClOrdId is duplicated
                    '11086': InvalidOrder,  # TE_PEG_PRICE_TYPE_INVALID PegPriceType is invalid
                    '11087': InvalidOrder,  # TE_BUY_TS_SHOULD_LT_BASE The trailing order's StopPrice should be less than the current last price
                    '11088': InvalidOrder,  # TE_BUY_TS_SHOULD_GT_LIQ The traling order's StopPrice should be greater than the current liquidation price
                    '11089': InvalidOrder,  # TE_SELL_TS_SHOULD_LT_LIQ The traling order's StopPrice should be greater than the current last price
                    '11090': InvalidOrder,  # TE_SELL_TS_SHOULD_GT_BASE The traling order's StopPrice should be less than the current liquidation price
                    '11091': InvalidOrder,  # TE_BUY_REVERT_VALUE_SHOULD_LT_ZERO The PegOffset should be less than zero
                    '11092': InvalidOrder,  # TE_SELL_REVERT_VALUE_SHOULD_GT_ZERO The PegOffset should be greater than zero
                    '11093': InvalidOrder,  # TE_BUY_TTP_SHOULD_ACTIVATE_ABOVE_BASE The activation price should be greater than the current last price
                    '11094': InvalidOrder,  # TE_SELL_TTP_SHOULD_ACTIVATE_BELOW_BASE The activation price should be less than the current last price
                    '11095': InvalidOrder,  # TE_TRAILING_ORDER_DUPLICATED A trailing order exists already
                    '11096': InvalidOrder,  # TE_CLOSE_ORDER_CANNOT_ATTACH_TP_SL An order to close position cannot have trailing instruction
                    '11097': BadRequest,  # TE_CANNOT_FIND_WALLET_OF_THIS_CURRENCY This crypto is not supported
                    '11098': BadRequest,  # TE_WALLET_INVALID_ACTION Invalid action on wallet
                    '11099': ExchangeError,  # TE_WALLET_VID_UNMATCHED Wallet operation request has a wrong wallet vid
                    '11100': InsufficientFunds,  # TE_WALLET_INSUFFICIENT_BALANCE Wallet has insufficient balance
                    '11101': InsufficientFunds,  # TE_WALLET_INSUFFICIENT_LOCKED_BALANCE Locked balance in wallet is not enough for unlock/withdraw request
                    '11102': BadRequest,  # TE_WALLET_INVALID_DEPOSIT_AMOUNT Deposit amount must be greater than zero
                    '11103': BadRequest,  # TE_WALLET_INVALID_WITHDRAW_AMOUNT Withdraw amount must be less than zero
                    '11104': BadRequest,  # TE_WALLET_REACHED_MAX_AMOUNT Deposit makes wallet exceed max amount allowed
                    '11105': InsufficientFunds,  # TE_PLACE_ORDER_INSUFFICIENT_BASE_BALANCE Insufficient funds in base wallet
                    '11106': InsufficientFunds,  # TE_PLACE_ORDER_INSUFFICIENT_QUOTE_BALANCE Insufficient funds in quote wallet
                    '11107': ExchangeError,  # TE_CANNOT_CONNECT_TO_REQUEST_SEQ TradingEngine failed to connect with CrossEngine
                    '11108': InvalidOrder,  # TE_CANNOT_REPLACE_OR_CANCEL_MARKET_ORDER Cannot replace/amend market order
                    '11109': InvalidOrder,  # TE_CANNOT_REPLACE_OR_CANCEL_IOC_ORDER Cannot replace/amend ImmediateOrCancel order
                    '11110': InvalidOrder,  # TE_CANNOT_REPLACE_OR_CANCEL_FOK_ORDER Cannot replace/amend FillOrKill order
                    '11111': InvalidOrder,  # TE_MISSING_ORDER_ID OrderId is missing
                    '11112': InvalidOrder,  # TE_QTY_TYPE_INVALID QtyType is invalid
                    '11113': BadRequest,  # TE_USER_ID_INVALID UserId is invalid
                    '11114': InvalidOrder,  # TE_ORDER_VALUE_TOO_LARGE Order value is too large
                    '11115': InvalidOrder,  # TE_ORDER_VALUE_TOO_SMALL Order value is too small
                    # not documented
                    '30018': BadRequest,  # {"code":30018,"msg":"phemex.data.size.uplimt","data":null}
                    '39996': PermissionDenied,  # {"code": "39996","msg": "Access denied."}
                },
                'broad': {
                    'Failed to find api-key': AuthenticationError,  # {"msg":"Failed to find api-key 1c5ec63fd-660d-43ea-847a-0d3ba69e106e","code":10500}
                    'Missing required parameter': BadRequest,  # {"msg":"Missing required parameter","code":10500}
                    'API Signature verification failed': AuthenticationError,  # {"msg":"API Signature verification failed.","code":10500}
                },
            },
            'options': {
                'x-phemex-request-expiry': 60,  # in seconds
                'createOrderByQuoteRequiresPrice': True,
            },
        })

    def parse_safe_float(self, value=None):
        if value is None:
            return value
        value = value.replace(',', '')
        parts = value.split(' ')
        return self.safe_float(parts, 0)

    def parse_swap_market(self, market):
        #
        #     {
        #         "symbol":"BTCUSD",
        #         "displaySymbol":"BTC / USD",
        #         "indexSymbol":".BTC",
        #         "markSymbol":".MBTC",
        #         "fundingRateSymbol":".BTCFR",
        #         "fundingRate8hSymbol":".BTCFR8H",
        #         "contractUnderlyingAssets":"USD",
        #         "settleCurrency":"BTC",
        #         "quoteCurrency":"USD",
        #         "contractSize":"1 USD",
        #         "lotSize":1,
        #         "tickSize":0.5,
        #         "priceScale":4,
        #         "ratioScale":8,
        #         "pricePrecision":1,
        #         "minPriceEp":5000,
        #         "maxPriceEp":10000000000,
        #         "maxOrderQty":1000000,
        #         "type":"Perpetual"
        #         "steps":"50",
        #         "riskLimits":[
        #             {"limit":100,"initialMargin":"1.0%","initialMarginEr":1000000,"maintenanceMargin":"0.5%","maintenanceMarginEr":500000},
        #             {"limit":150,"initialMargin":"1.5%","initialMarginEr":1500000,"maintenanceMargin":"1.0%","maintenanceMarginEr":1000000},
        #             {"limit":200,"initialMargin":"2.0%","initialMarginEr":2000000,"maintenanceMargin":"1.5%","maintenanceMarginEr":1500000},
        #         ],
        #         "underlyingSymbol":".BTC",
        #         "baseCurrency":"BTC",
        #         "settlementCurrency":"BTC",
        #         "valueScale":8,
        #         "defaultLeverage":0,
        #         "maxLeverage":100,
        #         "initMarginEr":"1000000",
        #         "maintMarginEr":"500000",
        #         "defaultRiskLimitEv":10000000000,
        #         "deleverage":true,
        #         "makerFeeRateEr":-250000,
        #         "takerFeeRateEr":750000,
        #         "fundingInterval":8,
        #         "marketUrl":"https://phemex.com/trade/BTCUSD",
        #         "description":"BTCUSD is a BTC/USD perpetual contract priced on the .BTC Index. Each contract is worth 1 USD of Bitcoin. Funding is paid and received every 8 hours. At UTC time: 00:00, 08:00, 16:00.",
        #     }
        #
        id = self.safe_string(market, 'symbol')
        baseId = self.safe_string(market, 'baseCurrency', 'contractUnderlyingAssets')
        quoteId = self.safe_string(market, 'quoteCurrency')
        base = self.safe_currency_code(baseId)
        quote = self.safe_currency_code(quoteId)
        symbol = base + '/' + quote
        type = self.safe_string_lower(market, 'type')
        taker = None
        maker = None
        inverse = False
        spot = False
        swap = True
        settlementCurrencyId = self.safe_string(market, 'settlementCurrency')
        if settlementCurrencyId != quoteId:
            inverse = True
        linear = not inverse
        precision = {
            'amount': self.safe_float(market, 'lotSize'),
            'price': self.safe_float(market, 'tickSize'),
        }
        priceScale = self.safe_integer(market, 'priceScale')
        ratioScale = self.safe_integer(market, 'ratioScale')
        valueScale = self.safe_integer(market, 'valueScale')
        minPriceEp = self.safe_float(market, 'minPriceEp')
        maxPriceEp = self.safe_float(market, 'maxPriceEp')
        makerFeeRateEr = self.safe_float(market, 'makerFeeRateEr')
        takerFeeRateEr = self.safe_float(market, 'takerFeeRateEr')
        if makerFeeRateEr is not None:
            maker = self.from_en(makerFeeRateEr, ratioScale, 0.00000001)
        if takerFeeRateEr is not None:
            taker = self.from_en(takerFeeRateEr, ratioScale, 0.00000001)
        limits = {
            'amount': {
                'min': precision['amount'],
                'max': None,
            },
            'price': {
                'min': self.from_en(minPriceEp, priceScale, precision['price']),
                'max': self.from_en(maxPriceEp, priceScale, precision['price']),
            },
            'cost': {
                'min': None,
                'max': self.parse_safe_float(self.safe_string(market, 'maxOrderQty')),
            },
        }
        active = None
        return {
            'id': id,
            'symbol': symbol,
            'base': base,
            'quote': quote,
            'baseId': baseId,
            'quoteId': quoteId,
            'info': market,
            'type': type,
            'spot': spot,
            'swap': swap,
            'linear': linear,
            'inverse': inverse,
            'active': active,
            'taker': taker,
            'maker': maker,
            'priceScale': priceScale,
            'valueScale': valueScale,
            'ratioScale': ratioScale,
            'precision': precision,
            'limits': limits,
        }

    def parse_spot_market(self, market):
        #
        #     {
        #         "symbol":"sBTCUSDT",
        #         "displaySymbol":"BTC / USDT",
        #         "quoteCurrency":"USDT",
        #         "pricePrecision":2,
        #         "type":"Spot",
        #         "baseCurrency":"BTC",
        #         "baseTickSize":"0.000001 BTC",
        #         "baseTickSizeEv":100,
        #         "quoteTickSize":"0.01 USDT",
        #         "quoteTickSizeEv":1000000,
        #         "minOrderValue":"10 USDT",
        #         "minOrderValueEv":1000000000,
        #         "maxBaseOrderSize":"1000 BTC",
        #         "maxBaseOrderSizeEv":100000000000,
        #         "maxOrderValue":"5,000,000 USDT",
        #         "maxOrderValueEv":500000000000000,
        #         "defaultTakerFee":"0.001",
        #         "defaultTakerFeeEr":100000,
        #         "defaultMakerFee":"0.001",
        #         "defaultMakerFeeEr":100000,
        #         "baseQtyPrecision":6,
        #         "quoteQtyPrecision":2
        #     }
        #
        type = self.safe_string_lower(market, 'type')
        id = self.safe_string(market, 'symbol')
        quoteId = self.safe_string(market, 'quoteCurrency')
        baseId = self.safe_string(market, 'baseCurrency')
        linear = None
        inverse = None
        spot = True
        swap = False
        taker = self.safe_float(market, 'defaultTakerFee')
        maker = self.safe_float(market, 'defaultMakerFee')
        precision = {
            'amount': self.parse_safe_float(self.safe_string(market, 'baseTickSize')),
            'price': self.parse_safe_float(self.safe_string(market, 'quoteTickSize')),
        }
        limits = {
            'amount': {
                'min': precision['amount'],
                'max': self.parse_safe_float(self.safe_string(market, 'maxBaseOrderSize')),
            },
            'price': {
                'min': precision['price'],
                'max': None,
            },
            'cost': {
                'min': self.parse_safe_float(self.safe_string(market, 'minOrderValue')),
                'max': self.parse_safe_float(self.safe_string(market, 'maxOrderValue')),
            },
        }
        base = self.safe_currency_code(baseId)
        quote = self.safe_currency_code(quoteId)
        symbol = base + '/' + quote
        active = None
        return {
            'id': id,
            'symbol': symbol,
            'base': base,
            'quote': quote,
            'baseId': baseId,
            'quoteId': quoteId,
            'info': market,
            'type': type,
            'spot': spot,
            'swap': swap,
            'linear': linear,
            'inverse': inverse,
            'active': active,
            'taker': taker,
            'maker': maker,
            'precision': precision,
            'priceScale': 8,
            'valueScale': 8,
            'ratioScale': 8,
            'limits': limits,
        }

    async def fetch_markets(self, params={}):
        v2Products = await self.publicGetCfgV2Products(params)
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":{
        #             "ratioScale":8,
        #             "currencies":[
        #                 {"currency":"BTC","valueScale":8,"minValueEv":1,"maxValueEv":5000000000000000000,"name":"Bitcoin"},
        #                 {"currency":"USD","valueScale":4,"minValueEv":1,"maxValueEv":500000000000000,"name":"USD"},
        #                 {"currency":"USDT","valueScale":8,"minValueEv":1,"maxValueEv":5000000000000000000,"name":"TetherUS"},
        #             ],
        #             "products":[
        #                 {
        #                     "symbol":"BTCUSD",
        #                     "displaySymbol":"BTC / USD",
        #                     "indexSymbol":".BTC",
        #                     "markSymbol":".MBTC",
        #                     "fundingRateSymbol":".BTCFR",
        #                     "fundingRate8hSymbol":".BTCFR8H",
        #                     "contractUnderlyingAssets":"USD",
        #                     "settleCurrency":"BTC",
        #                     "quoteCurrency":"USD",
        #                     "contractSize":1.0,
        #                     "lotSize":1,
        #                     "tickSize":0.5,
        #                     "priceScale":4,
        #                     "ratioScale":8,
        #                     "pricePrecision":1,
        #                     "minPriceEp":5000,
        #                     "maxPriceEp":10000000000,
        #                     "maxOrderQty":1000000,
        #                     "type":"Perpetual"
        #                 },
        #                 {
        #                     "symbol":"sBTCUSDT",
        #                     "displaySymbol":"BTC / USDT",
        #                     "quoteCurrency":"USDT",
        #                     "pricePrecision":2,
        #                     "type":"Spot",
        #                     "baseCurrency":"BTC",
        #                     "baseTickSize":"0.000001 BTC",
        #                     "baseTickSizeEv":100,
        #                     "quoteTickSize":"0.01 USDT",
        #                     "quoteTickSizeEv":1000000,
        #                     "minOrderValue":"10 USDT",
        #                     "minOrderValueEv":1000000000,
        #                     "maxBaseOrderSize":"1000 BTC",
        #                     "maxBaseOrderSizeEv":100000000000,
        #                     "maxOrderValue":"5,000,000 USDT",
        #                     "maxOrderValueEv":500000000000000,
        #                     "defaultTakerFee":"0.001",
        #                     "defaultTakerFeeEr":100000,
        #                     "defaultMakerFee":"0.001",
        #                     "defaultMakerFeeEr":100000,
        #                     "baseQtyPrecision":6,
        #                     "quoteQtyPrecision":2
        #                 },
        #             ],
        #             "riskLimits":[
        #                 {
        #                     "symbol":"BTCUSD",
        #                     "steps":"50",
        #                     "riskLimits":[
        #                         {"limit":100,"initialMargin":"1.0%","initialMarginEr":1000000,"maintenanceMargin":"0.5%","maintenanceMarginEr":500000},
        #                         {"limit":150,"initialMargin":"1.5%","initialMarginEr":1500000,"maintenanceMargin":"1.0%","maintenanceMarginEr":1000000},
        #                         {"limit":200,"initialMargin":"2.0%","initialMarginEr":2000000,"maintenanceMargin":"1.5%","maintenanceMarginEr":1500000},
        #                     ]
        #                 },
        #             ],
        #             "leverages":[
        #                 {"initialMargin":"1.0%","initialMarginEr":1000000,"options":[1,2,3,5,10,25,50,100]},
        #                 {"initialMargin":"1.5%","initialMarginEr":1500000,"options":[1,2,3,5,10,25,50,66]},
        #                 {"initialMargin":"2.0%","initialMarginEr":2000000,"options":[1,2,3,5,10,25,33,50]},
        #             ]
        #         }
        #     }
        #
        v1Products = await self.v1GetExchangePublicProducts(params)
        v1ProductsData = self.safe_value(v1Products, 'data', [])
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":[
        #             {
        #                 "symbol":"BTCUSD",
        #                 "underlyingSymbol":".BTC",
        #                 "quoteCurrency":"USD",
        #                 "baseCurrency":"BTC",
        #                 "settlementCurrency":"BTC",
        #                 "maxOrderQty":1000000,
        #                 "maxPriceEp":100000000000000,
        #                 "lotSize":1,
        #                 "tickSize":"0.5",
        #                 "contractSize":"1 USD",
        #                 "priceScale":4,
        #                 "ratioScale":8,
        #                 "valueScale":8,
        #                 "defaultLeverage":0,
        #                 "maxLeverage":100,
        #                 "initMarginEr":"1000000",
        #                 "maintMarginEr":"500000",
        #                 "defaultRiskLimitEv":10000000000,
        #                 "deleverage":true,
        #                 "makerFeeRateEr":-250000,
        #                 "takerFeeRateEr":750000,
        #                 "fundingInterval":8,
        #                 "marketUrl":"https://phemex.com/trade/BTCUSD",
        #                 "description":"BTCUSD is a BTC/USD perpetual contract priced on the .BTC Index. Each contract is worth 1 USD of Bitcoin. Funding is paid and received every 8 hours. At UTC time: 00:00, 08:00, 16:00.",
        #                 "type":"Perpetual"
        #             },
        #         ]
        #     }
        #
        v2ProductsData = self.safe_value(v2Products, 'data', {})
        products = self.safe_value(v2ProductsData, 'products', [])
        riskLimits = self.safe_value(v2ProductsData, 'riskLimits', [])
        riskLimitsById = self.index_by(riskLimits, 'symbol')
        v1ProductsById = self.index_by(v1ProductsData, 'symbol')
        result = []
        for i in range(0, len(products)):
            market = products[i]
            type = self.safe_string_lower(market, 'type')
            if type == 'perpetual':
                id = self.safe_string(market, 'symbol')
                riskLimitValues = self.safe_value(riskLimitsById, id, {})
                market = self.extend(market, riskLimitValues)
                v1ProductsValues = self.safe_value(v1ProductsById, id, {})
                market = self.extend(market, v1ProductsValues)
                market = self.parse_swap_market(market)
            else:
                market = self.parse_spot_market(market)
            result.append(market)
        return result

    async def fetch_currencies(self, params={}):
        response = await self.publicGetCfgV2Products(params)
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":{
        #             ...,
        #             "currencies":[
        #                 {"currency":"BTC","valueScale":8,"minValueEv":1,"maxValueEv":5000000000000000000,"name":"Bitcoin"},
        #                 {"currency":"USD","valueScale":4,"minValueEv":1,"maxValueEv":500000000000000,"name":"USD"},
        #                 {"currency":"USDT","valueScale":8,"minValueEv":1,"maxValueEv":5000000000000000000,"name":"TetherUS"},
        #             ],
        #             ...
        #         }
        #     }
        data = self.safe_value(response, 'data', {})
        currencies = self.safe_value(data, 'currencies', [])
        result = {}
        for i in range(0, len(currencies)):
            currency = currencies[i]
            id = self.safe_string(currency, 'currency')
            name = self.safe_string(currency, 'name')
            code = self.safe_currency_code(id)
            valueScale = self.safe_integer(currency, 'valueScale')
            minValueEv = self.safe_float(currency, 'minValueEv')
            maxValueEv = self.safe_float(currency, 'maxValueEv')
            minAmount = None
            maxAmount = None
            precision = None
            if valueScale is not None:
                precision = math.pow(10, -valueScale)
                precision = float(self.decimal_to_precision(precision, ROUND, 0.00000001, self.precisionMode))
                if minValueEv is not None:
                    minAmount = float(self.decimal_to_precision(minValueEv * precision, ROUND, 0.00000001, self.precisionMode))
                if maxValueEv is not None:
                    maxAmount = float(self.decimal_to_precision(maxValueEv * precision, ROUND, 0.00000001, self.precisionMode))
            result[code] = {
                'id': id,
                'info': currency,
                'code': code,
                'name': name,
                'active': None,
                'fee': None,
                'precision': precision,
                'limits': {
                    'amount': {
                        'min': minAmount,
                        'max': maxAmount,
                    },
                    'price': {
                        'min': None,
                        'max': None,
                    },
                    'cost': {
                        'min': None,
                        'max': None,
                    },
                    'withdraw': {
                        'min': None,
                        'max': None,
                    },
                },
                'valueScale': valueScale,
            }
        return result

    def parse_bid_ask(self, bidask, priceKey=0, amountKey=1, market=None):
        if market is None:
            raise ArgumentsRequired(self.id + ' parseBidAsk() requires a market argument')
        amount = self.safe_float(bidask, amountKey)
        if market['spot']:
            amount = self.from_ev(amount, market)
        return [
            self.from_ep(self.safe_float(bidask, priceKey), market),
            amount,
        ]

    def parse_order_book(self, orderbook, timestamp=None, bidsKey='bids', asksKey='asks', priceKey=0, amountKey=1, market=None):
        result = {
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'nonce': None,
        }
        sides = [bidsKey, asksKey]
        for i in range(0, len(sides)):
            side = sides[i]
            orders = []
            bidasks = self.safe_value(orderbook, side)
            for k in range(0, len(bidasks)):
                orders.append(self.parse_bid_ask(bidasks[k], priceKey, amountKey, market))
            result[side] = orders
        result[bidsKey] = self.sort_by(result[bidsKey], 0, True)
        result[asksKey] = self.sort_by(result[asksKey], 0)
        return result

    async def fetch_order_book(self, symbol, limit=None, params={}):
        await self.load_markets()
        market = self.market(symbol)
        request = {
            'symbol': market['id'],
            # 'id': 123456789,  # optional request id
        }
        response = await self.v1GetMdOrderbook(self.extend(request, params))
        #
        #     {
        #         "error": null,
        #         "id": 0,
        #         "result": {
        #             "book": {
        #                 "asks": [
        #                     [23415000000, 105262000],
        #                     [23416000000, 147914000],
        #                     [23419000000, 160914000],
        #                 ],
        #                 "bids": [
        #                     [23360000000, 32995000],
        #                     [23359000000, 221887000],
        #                     [23356000000, 284599000],
        #                 ],
        #             },
        #             "depth": 30,
        #             "sequence": 1592059928,
        #             "symbol": "sETHUSDT",
        #             "timestamp": 1592387340020000955,
        #             "type": "snapshot"
        #         }
        #     }
        #
        result = self.safe_value(response, 'result', {})
        book = self.safe_value(result, 'book', {})
        timestamp = self.safe_integer_product(result, 'timestamp', 0.000001)
        orderbook = self.parse_order_book(book, timestamp, 'bids', 'asks', 0, 1, market)
        orderbook['nonce'] = self.safe_integer(result, 'sequence')
        return orderbook

    def to_en(self, n, scale, precision):
        return int(self.decimal_to_precision(n * math.pow(10, scale), ROUND, precision, DECIMAL_PLACES))

    def to_ev(self, amount, market=None):
        if (amount is None) or (market is None):
            return amount
        return self.to_en(amount, market['valueScale'], 0)

    def to_ep(self, price, market=None):
        if (price is None) or (market is None):
            return price
        return self.to_en(price, market['priceScale'], 0)

    def from_en(self, en, scale, precision, precisionMode=None):
        if en is None:
            return en
        precisionMode = self.precisionMode if (precisionMode is None) else precisionMode
        return float(self.decimal_to_precision(en * math.pow(10, -scale), ROUND, precision, precisionMode))

    def from_ep(self, ep, market=None):
        if (ep is None) or (market is None):
            return ep
        return self.from_en(ep, market['priceScale'], market['precision']['price'])

    def from_ev(self, ev, market=None):
        if (ev is None) or (market is None):
            return ev
        if market['spot']:
            return self.from_en(ev, market['valueScale'], market['precision']['amount'])
        else:
            return self.from_en(ev, market['valueScale'], 1 / math.pow(10, market['valueScale']))

    def from_er(self, er, market=None):
        if (er is None) or (market is None):
            return er
        return self.from_en(er, market['ratioScale'], 0.00000001)

    def parse_ohlcv(self, ohlcv, market=None):
        #
        #     [
        #         1592467200,  # timestamp
        #         300,  # interval
        #         23376000000,  # last
        #         23322000000,  # open
        #         23381000000,  # high
        #         23315000000,  # low
        #         23367000000,  # close
        #         208671000,  # base volume
        #         48759063370,  # quote volume
        #     ]
        #
        baseVolume = None
        if (market is not None) and market['spot']:
            baseVolume = self.from_ev(self.safe_float(ohlcv, 7), market)
        else:
            baseVolume = self.safe_integer(ohlcv, 7)
        return [
            self.safe_timestamp(ohlcv, 0),
            self.from_ep(self.safe_float(ohlcv, 3), market),
            self.from_ep(self.safe_float(ohlcv, 4), market),
            self.from_ep(self.safe_float(ohlcv, 5), market),
            self.from_ep(self.safe_float(ohlcv, 6), market),
            baseVolume,
        ]

    async def fetch_ohlcv(self, symbol, timeframe='1m', since=None, limit=None, params={}):
        request = {
            # 'symbol': market['id'],
            'resolution': self.timeframes[timeframe],
            # 'from': 1588830682,  # seconds
            # 'to': self.seconds(),
        }
        duration = self.parse_timeframe(timeframe)
        now = self.seconds()
        if since is not None:
            if limit is None:
                limit = 2000  # max 2000
            since = int(since / 1000)
            request['from'] = since
            # time ranges ending in the future are not accepted
            # https://github.com/ccxt/ccxt/issues/8050
            request['to'] = min(now, self.sum(since, duration * limit))
        elif limit is not None:
            limit = min(limit, 2000)
            request['from'] = now - duration * self.sum(limit, 1)
            request['to'] = now
        else:
            raise ArgumentsRequired(self.id + ' fetchOHLCV() requires a since argument, or a limit argument, or both')
        await self.load_markets()
        market = self.market(symbol)
        request['symbol'] = market['id']
        response = await self.publicGetMdKline(self.extend(request, params))
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":{
        #             "total":-1,
        #             "rows":[
        #                 [1592467200,300,23376000000,23322000000,23381000000,23315000000,23367000000,208671000,48759063370],
        #                 [1592467500,300,23367000000,23314000000,23390000000,23311000000,23331000000,234820000,54848948710],
        #                 [1592467800,300,23331000000,23385000000,23391000000,23326000000,23387000000,152931000,35747882250],
        #             ]
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        rows = self.safe_value(data, 'rows', [])
        return self.parse_ohlcvs(rows, market, timeframe, since, limit)

    def parse_ticker(self, ticker, market=None):
        #
        # spot
        #
        #     {
        #         "askEp": 943836000000,
        #         "bidEp": 943601000000,
        #         "highEp": 955946000000,
        #         "lastEp": 943803000000,
        #         "lowEp": 924973000000,
        #         "openEp": 948693000000,
        #         "symbol": "sBTCUSDT",
        #         "timestamp": 1592471203505728630,
        #         "turnoverEv": 111822826123103,
        #         "volumeEv": 11880532281
        #     }
        #
        # swap
        #
        #     {
        #         "askEp": 2332500,
        #         "bidEp": 2331000,
        #         "fundingRateEr": 10000,
        #         "highEp": 2380000,
        #         "indexEp": 2329057,
        #         "lastEp": 2331500,
        #         "lowEp": 2274000,
        #         "markEp": 2329232,
        #         "openEp": 2337500,
        #         "openInterest": 1298050,
        #         "predFundingRateEr": 19921,
        #         "symbol": "ETHUSD",
        #         "timestamp": 1592474241582701416,
        #         "turnoverEv": 47228362330,
        #         "volume": 4053863
        #     }
        #
        marketId = self.safe_string(ticker, 'symbol')
        symbol = self.safe_symbol(marketId, market)
        timestamp = self.safe_integer_product(ticker, 'timestamp', 0.000001)
        last = self.from_ep(self.safe_float(ticker, 'lastEp'), market)
        quoteVolume = self.from_ep(self.safe_float(ticker, 'turnoverEv'), market)
        baseVolume = self.safe_float(ticker, 'volume')
        if baseVolume is None:
            baseVolume = self.from_ev(self.safe_float(ticker, 'volumeEv'))
        vwap = None
        if (market is not None) and (market['spot']):
            vwap = self.vwap(baseVolume, quoteVolume)
        change = None
        percentage = None
        average = None
        open = self.from_ep(self.safe_float(ticker, 'openEp'), market)
        if (open is not None) and (last is not None):
            change = last - open
            if open > 0:
                percentage = change / open * 100
            average = self.sum(open, last) / 2
        result = {
            'symbol': symbol,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'high': self.from_ep(self.safe_float(ticker, 'highEp'), market),
            'low': self.from_ep(self.safe_float(ticker, 'lowEp'), market),
            'bid': self.from_ep(self.safe_float(ticker, 'bidEp'), market),
            'bidVolume': None,
            'ask': self.from_ep(self.safe_float(ticker, 'askEp'), market),
            'askVolume': None,
            'vwap': vwap,
            'open': open,
            'close': last,
            'last': last,
            'previousClose': None,  # previous day close
            'change': change,
            'percentage': percentage,
            'average': average,
            'baseVolume': baseVolume,
            'quoteVolume': quoteVolume,
            'info': ticker,
        }
        return result

    async def fetch_ticker(self, symbol, params={}):
        await self.load_markets()
        market = self.market(symbol)
        request = {
            'symbol': market['id'],
            # 'id': 123456789,  # optional request id
        }
        method = 'v1GetMdSpotTicker24hr' if market['spot'] else 'v1GetMdTicker24hr'
        response = await getattr(self, method)(self.extend(request, params))
        #
        # spot
        #
        #     {
        #         "error": null,
        #         "id": 0,
        #         "result": {
        #             "askEp": 943836000000,
        #             "bidEp": 943601000000,
        #             "highEp": 955946000000,
        #             "lastEp": 943803000000,
        #             "lowEp": 924973000000,
        #             "openEp": 948693000000,
        #             "symbol": "sBTCUSDT",
        #             "timestamp": 1592471203505728630,
        #             "turnoverEv": 111822826123103,
        #             "volumeEv": 11880532281
        #         }
        #     }
        #
        # swap
        #
        #     {
        #         "error": null,
        #         "id": 0,
        #         "result": {
        #             "askEp": 2332500,
        #             "bidEp": 2331000,
        #             "fundingRateEr": 10000,
        #             "highEp": 2380000,
        #             "indexEp": 2329057,
        #             "lastEp": 2331500,
        #             "lowEp": 2274000,
        #             "markEp": 2329232,
        #             "openEp": 2337500,
        #             "openInterest": 1298050,
        #             "predFundingRateEr": 19921,
        #             "symbol": "ETHUSD",
        #             "timestamp": 1592474241582701416,
        #             "turnoverEv": 47228362330,
        #             "volume": 4053863
        #         }
        #     }
        #
        result = self.safe_value(response, 'result', {})
        return self.parse_ticker(result, market)

    async def fetch_trades(self, symbol, since=None, limit=None, params={}):
        await self.load_markets()
        market = self.market(symbol)
        request = {
            'symbol': market['id'],
            # 'id': 123456789,  # optional request id
        }
        response = await self.v1GetMdTrade(self.extend(request, params))
        #
        #     {
        #         "error": null,
        #         "id": 0,
        #         "result": {
        #             "sequence": 1315644947,
        #             "symbol": "BTCUSD",
        #             "trades": [
        #                 [1592541746712239749, 13156448570000, "Buy", 93070000, 40173],
        #                 [1592541740434625085, 13156447110000, "Sell", 93065000, 5000],
        #                 [1592541732958241616, 13156441390000, "Buy", 93070000, 3460],
        #             ],
        #             "type": "snapshot"
        #         }
        #     }
        #
        result = self.safe_value(response, 'result', {})
        trades = self.safe_value(result, 'trades', [])
        return self.parse_trades(trades, market, since, limit)

    def parse_trade(self, trade, market=None):
        #
        # fetchTrades(public)
        #
        #     [
        #         1592541746712239749,
        #         13156448570000,
        #         "Buy",
        #         93070000,
        #         40173
        #     ]
        #
        # fetchMyTrades(private)
        #
        # spot
        #
        #     {
        #         "qtyType": "ByQuote",
        #         "transactTimeNs": 1589450974800550100,
        #         "clOrdID": "8ba59d40-df25-d4b0-14cf-0703f44e9690",
        #         "orderID": "b2b7018d-f02f-4c59-b4cf-051b9c2d2e83",
        #         "symbol": "sBTCUSDT",
        #         "side": "Buy",
        #         "priceEP": 970056000000,
        #         "baseQtyEv": 0,
        #         "quoteQtyEv": 1000000000,
        #         "action": "New",
        #         "execStatus": "MakerFill",
        #         "ordStatus": "Filled",
        #         "ordType": "Limit",
        #         "execInst": "None",
        #         "timeInForce": "GoodTillCancel",
        #         "stopDirection": "UNSPECIFIED",
        #         "tradeType": "Trade",
        #         "stopPxEp": 0,
        #         "execId": "c6bd8979-07ba-5946-b07e-f8b65135dbb1",
        #         "execPriceEp": 970056000000,
        #         "execBaseQtyEv": 103000,
        #         "execQuoteQtyEv": 999157680,
        #         "leavesBaseQtyEv": 0,
        #         "leavesQuoteQtyEv": 0,
        #         "execFeeEv": 0,
        #         "feeRateEr": 0
        #     }
        #
        # swap
        #
        #     {
        #         "transactTimeNs": 1578026629824704800,
        #         "symbol": "BTCUSD",
        #         "currency": "BTC",
        #         "action": "Replace",
        #         "side": "Sell",
        #         "tradeType": "Trade",
        #         "execQty": 700,
        #         "execPriceEp": 71500000,
        #         "orderQty": 700,
        #         "priceEp": 71500000,
        #         "execValueEv": 9790209,
        #         "feeRateEr": -25000,
        #         "execFeeEv": -2447,
        #         "ordType": "Limit",
        #         "execID": "b01671a1-5ddc-5def-b80a-5311522fd4bf",
        #         "orderID": "b63bc982-be3a-45e0-8974-43d6375fb626",
        #         "clOrdID": "uuid-1577463487504",
        #         "execStatus": "MakerFill"
        #     }
        #
        price = None
        amount = None
        timestamp = None
        id = None
        side = None
        cost = None
        type = None
        fee = None
        marketId = self.safe_string(trade, 'symbol')
        market = self.safe_market(marketId, market)
        symbol = market['symbol']
        orderId = None
        takerOrMaker = None
        if isinstance(trade, list):
            tradeLength = len(trade)
            timestamp = self.safe_integer_product(trade, 0, 0.000001)
            if tradeLength > 4:
                id = self.safe_string(trade, tradeLength - 4)
            side = self.safe_string_lower(trade, tradeLength - 3)
            price = self.from_ep(self.safe_float(trade, tradeLength - 2), market)
            amount = self.from_ev(self.safe_float(trade, tradeLength - 1), market)
            if market['spot']:
                if (price is not None) and (amount is not None):
                    cost = price * amount
        else:
            timestamp = self.safe_integer_product(trade, 'transactTimeNs', 0.000001)
            id = self.safe_string_2(trade, 'execId', 'execID')
            orderId = self.safe_string(trade, 'orderID')
            side = self.safe_string_lower(trade, 'side')
            type = self.parse_order_type(self.safe_string(trade, 'ordType'))
            execStatus = self.safe_string(trade, 'execStatus')
            if execStatus == 'MakerFill':
                takerOrMaker = 'maker'
            price = self.from_ep(self.safe_float(trade, 'execPriceEp'), market)
            amount = self.from_ev(self.safe_float(trade, 'execBaseQtyEv'), market)
            amount = self.safe_float(trade, 'execQty', amount)
            cost = self.from_ev(self.safe_float_2(trade, 'execQuoteQtyEv', 'execValueEv'), market)
            feeCost = self.from_ev(self.safe_float(trade, 'execFeeEv'), market)
            if feeCost is not None:
                feeRate = None
                feeRateEr = self.safe_float(trade, 'feeRateEr')
                if feeRateEr < 0:
                    feeRateEr = abs(feeRateEr)
                    feeRate = self.from_er(feeRateEr, market)
                    feeRate = -feeRate
                else:
                    feeRate = self.from_er(feeRateEr, market)
                feeCurrencyCode = None
                if market['spot']:
                    feeCurrencyCode = market['base'] if (side == 'buy') else market['quote']
                else:
                    info = self.safe_value(market, 'info')
                    if info is not None:
                        settlementCurrencyId = self.safe_string(info, 'settlementCurrency')
                        feeCurrencyCode = self.safe_currency_code(settlementCurrencyId)
                fee = {
                    'cost': feeCost,
                    'rate': feeRate,
                    'currency': feeCurrencyCode,
                }
        return {
            'info': trade,
            'id': id,
            'symbol': symbol,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'order': orderId,
            'type': type,
            'side': side,
            'takerOrMaker': takerOrMaker,
            'price': price,
            'amount': amount,
            'cost': cost,
            'fee': fee,
        }

    def parse_spot_balance(self, response):
        #
        #     {
        #         "code":0,
        #         "msg":"",
        #         "data":[
        #             {
        #                 "currency":"USDT",
        #                 "balanceEv":0,
        #                 "lockedTradingBalanceEv":0,
        #                 "lockedWithdrawEv":0,
        #                 "lastUpdateTimeNs":1592065834511322514,
        #                 "walletVid":0
        #             },
        #             {
        #                 "currency":"ETH",
        #                 "balanceEv":0,
        #                 "lockedTradingBalanceEv":0,
        #                 "lockedWithdrawEv":0,
        #                 "lastUpdateTimeNs":1592065834511322514,
        #                 "walletVid":0
        #             }
        #         ]
        #     }
        #
        result = {'info': response}
        data = self.safe_value(response, 'data', [])
        for i in range(0, len(data)):
            balance = data[i]
            currencyId = self.safe_string(balance, 'currency')
            code = self.safe_currency_code(currencyId)
            currency = self.safe_value(self.currencies, code, {})
            scale = self.safe_integer(currency, 'valueScale', 8)
            account = self.account()
            balanceEv = self.safe_float(balance, 'balanceEv')
            lockedTradingBalanceEv = self.safe_float(balance, 'lockedTradingBalanceEv')
            lockedWithdrawEv = self.safe_float(balance, 'lockedWithdrawEv')
            total = self.from_en(balanceEv, scale, scale, DECIMAL_PLACES)
            lockedTradingBalance = self.from_en(lockedTradingBalanceEv, scale, scale, DECIMAL_PLACES)
            lockedWithdraw = self.from_en(lockedWithdrawEv, scale, scale, DECIMAL_PLACES)
            used = self.sum(lockedTradingBalance, lockedWithdraw)
            account['total'] = total
            account['used'] = used
            result[code] = account
        return self.parse_balance(result)

    def parse_swap_balance(self, response):
        #
        #     {
        #         "code":0,
        #         "msg":"",
        #         "data":{
        #             "account":{
        #                 "accountId":6192120001,
        #                 "currency":"BTC",
        #                 "accountBalanceEv":1254744,
        #                 "totalUsedBalanceEv":0,
        #                 "bonusBalanceEv":1254744
        #             },
        #             "positions":[
        #                 {
        #                     "accountID":6192120001,
        #                     "symbol":"BTCUSD",
        #                     "currency":"BTC",
        #                     "side":"None",
        #                     "positionStatus":"Normal",
        #                     "crossMargin":false,
        #                     "leverageEr":0,
        #                     "leverage":0E-8,
        #                     "initMarginReqEr":1000000,
        #                     "initMarginReq":0.01000000,
        #                     "maintMarginReqEr":500000,
        #                     "maintMarginReq":0.00500000,
        #                     "riskLimitEv":10000000000,
        #                     "riskLimit":100.00000000,
        #                     "size":0,
        #                     "value":0E-8,
        #                     "valueEv":0,
        #                     "avgEntryPriceEp":0,
        #                     "avgEntryPrice":0E-8,
        #                     "posCostEv":0,
        #                     "posCost":0E-8,
        #                     "assignedPosBalanceEv":0,
        #                     "assignedPosBalance":0E-8,
        #                     "bankruptCommEv":0,
        #                     "bankruptComm":0E-8,
        #                     "bankruptPriceEp":0,
        #                     "bankruptPrice":0E-8,
        #                     "positionMarginEv":0,
        #                     "positionMargin":0E-8,
        #                     "liquidationPriceEp":0,
        #                     "liquidationPrice":0E-8,
        #                     "deleveragePercentileEr":0,
        #                     "deleveragePercentile":0E-8,
        #                     "buyValueToCostEr":1150750,
        #                     "buyValueToCost":0.01150750,
        #                     "sellValueToCostEr":1149250,
        #                     "sellValueToCost":0.01149250,
        #                     "markPriceEp":96359083,
        #                     "markPrice":9635.90830000,
        #                     "markValueEv":0,
        #                     "markValue":null,
        #                     "unRealisedPosLossEv":0,
        #                     "unRealisedPosLoss":null,
        #                     "estimatedOrdLossEv":0,
        #                     "estimatedOrdLoss":0E-8,
        #                     "usedBalanceEv":0,
        #                     "usedBalance":0E-8,
        #                     "takeProfitEp":0,
        #                     "takeProfit":null,
        #                     "stopLossEp":0,
        #                     "stopLoss":null,
        #                     "realisedPnlEv":0,
        #                     "realisedPnl":null,
        #                     "cumRealisedPnlEv":0,
        #                     "cumRealisedPnl":null
        #                 }
        #             ]
        #         }
        #     }
        #
        result = {'info': response}
        data = self.safe_value(response, 'data', {})
        balance = self.safe_value(data, 'account', {})
        currencyId = self.safe_string(balance, 'currency')
        code = self.safe_currency_code(currencyId)
        currency = self.currency(code)
        account = self.account()
        accountBalanceEv = self.safe_float(balance, 'accountBalanceEv')
        totalUsedBalanceEv = self.safe_float(balance, 'totalUsedBalanceEv')
        valueScale = self.safe_integer(currency, 'valueScale', 8)
        account['total'] = self.from_en(accountBalanceEv, valueScale, valueScale, DECIMAL_PLACES)
        account['used'] = self.from_en(totalUsedBalanceEv, valueScale, valueScale, DECIMAL_PLACES)
        result[code] = account
        return self.parse_balance(result)

    async def fetch_balance(self, params={}):
        await self.load_markets()
        defaultType = self.safe_string_2(self.options, 'defaultType', 'fetchBalance', 'spot')
        type = self.safe_string(params, 'type', defaultType)
        method = 'privateGetSpotWallets'
        request = {}
        if type == 'swap':
            code = self.safe_string(params, 'code')
            if code is not None:
                currency = self.currency(code)
                request['currency'] = currency['id']
                params = self.omit(params, 'code')
            else:
                currency = self.safe_string(params, 'currency')
                if currency is None:
                    raise ArgumentsRequired(self.id + ' fetchBalance() requires a code parameter or a currency parameter for ' + type + ' type')
            method = 'privateGetAccountsAccountPositions'
        params = self.omit(params, 'type')
        response = await getattr(self, method)(self.extend(request, params))
        #
        # spot
        #
        #     {
        #         "code":0,
        #         "msg":"",
        #         "data":[
        #             {
        #                 "currency":"USDT",
        #                 "balanceEv":0,
        #                 "lockedTradingBalanceEv":0,
        #                 "lockedWithdrawEv":0,
        #                 "lastUpdateTimeNs":1592065834511322514,
        #                 "walletVid":0
        #             },
        #             {
        #                 "currency":"ETH",
        #                 "balanceEv":0,
        #                 "lockedTradingBalanceEv":0,
        #                 "lockedWithdrawEv":0,
        #                 "lastUpdateTimeNs":1592065834511322514,
        #                 "walletVid":0
        #             }
        #         ]
        #     }
        #
        # swap
        #
        #     {
        #         "code":0,
        #         "msg":"",
        #         "data":{
        #             "account":{
        #                 "accountId":6192120001,
        #                 "currency":"BTC",
        #                 "accountBalanceEv":1254744,
        #                 "totalUsedBalanceEv":0,
        #                 "bonusBalanceEv":1254744
        #             },
        #             "positions":[
        #                 {
        #                     "accountID":6192120001,
        #                     "symbol":"BTCUSD",
        #                     "currency":"BTC",
        #                     "side":"None",
        #                     "positionStatus":"Normal",
        #                     "crossMargin":false,
        #                     "leverageEr":0,
        #                     "leverage":0E-8,
        #                     "initMarginReqEr":1000000,
        #                     "initMarginReq":0.01000000,
        #                     "maintMarginReqEr":500000,
        #                     "maintMarginReq":0.00500000,
        #                     "riskLimitEv":10000000000,
        #                     "riskLimit":100.00000000,
        #                     "size":0,
        #                     "value":0E-8,
        #                     "valueEv":0,
        #                     "avgEntryPriceEp":0,
        #                     "avgEntryPrice":0E-8,
        #                     "posCostEv":0,
        #                     "posCost":0E-8,
        #                     "assignedPosBalanceEv":0,
        #                     "assignedPosBalance":0E-8,
        #                     "bankruptCommEv":0,
        #                     "bankruptComm":0E-8,
        #                     "bankruptPriceEp":0,
        #                     "bankruptPrice":0E-8,
        #                     "positionMarginEv":0,
        #                     "positionMargin":0E-8,
        #                     "liquidationPriceEp":0,
        #                     "liquidationPrice":0E-8,
        #                     "deleveragePercentileEr":0,
        #                     "deleveragePercentile":0E-8,
        #                     "buyValueToCostEr":1150750,
        #                     "buyValueToCost":0.01150750,
        #                     "sellValueToCostEr":1149250,
        #                     "sellValueToCost":0.01149250,
        #                     "markPriceEp":96359083,
        #                     "markPrice":9635.90830000,
        #                     "markValueEv":0,
        #                     "markValue":null,
        #                     "unRealisedPosLossEv":0,
        #                     "unRealisedPosLoss":null,
        #                     "estimatedOrdLossEv":0,
        #                     "estimatedOrdLoss":0E-8,
        #                     "usedBalanceEv":0,
        #                     "usedBalance":0E-8,
        #                     "takeProfitEp":0,
        #                     "takeProfit":null,
        #                     "stopLossEp":0,
        #                     "stopLoss":null,
        #                     "realisedPnlEv":0,
        #                     "realisedPnl":null,
        #                     "cumRealisedPnlEv":0,
        #                     "cumRealisedPnl":null
        #                 }
        #             ]
        #         }
        #     }
        #
        result = self.parse_swap_balance(response) if (type == 'swap') else self.parse_spot_balance(response)
        return result

    def parse_order_status(self, status):
        statuses = {
            'Created': 'open',
            'Untriggered': 'open',
            'Deactivated': 'closed',
            'Triggered': 'open',
            'Rejected': 'rejected',
            'New': 'open',
            'PartiallyFilled': 'open',
            'Filled': 'closed',
            'Canceled': 'canceled',
        }
        return self.safe_string(statuses, status, status)

    def parse_order_type(self, type):
        types = {
            'Limit': 'limit',
            'Market': 'market',
        }
        return self.safe_string(types, type, type)

    def parse_time_in_force(self, timeInForce):
        timeInForces = {
            'GoodTillCancel': 'GTC',
            'PostOnly': 'PO',
            'ImmediateOrCancel': 'IOC',
            'FillOrKill': 'FOK',
        }
        return self.safe_string(timeInForces, timeInForce, timeInForce)

    def parse_spot_order(self, order, market=None):
        #
        # spot
        #
        #     {
        #         "orderID": "d1d09454-cabc-4a23-89a7-59d43363f16d",
        #         "clOrdID": "309bcd5c-9f6e-4a68-b775-4494542eb5cb",
        #         "priceEp": 0,
        #         "action": "New",
        #         "trigger": "UNSPECIFIED",
        #         "pegPriceType": "UNSPECIFIED",
        #         "stopDirection": "UNSPECIFIED",
        #         "bizError": 0,
        #         "symbol": "sBTCUSDT",
        #         "side": "Buy",
        #         "baseQtyEv": 0,
        #         "ordType": "Limit",
        #         "timeInForce": "GoodTillCancel",
        #         "ordStatus": "Created",
        #         "cumFeeEv": 0,
        #         "cumBaseQtyEv": 0,
        #         "cumQuoteQtyEv": 0,
        #         "leavesBaseQtyEv": 0,
        #         "leavesQuoteQtyEv": 0,
        #         "avgPriceEp": 0,
        #         "cumBaseAmountEv": 0,
        #         "cumQuoteAmountEv": 0,
        #         "quoteQtyEv": 0,
        #         "qtyType": "ByBase",
        #         "stopPxEp": 0,
        #         "pegOffsetValueEp": 0
        #     }
        #
        #     {
        #         "orderID":"99232c3e-3d6a-455f-98cc-2061cdfe91bc",
        #         "stopPxEp":0,
        #         "avgPriceEp":0,
        #         "qtyType":"ByBase",
        #         "leavesBaseQtyEv":0,
        #         "leavesQuoteQtyEv":0,
        #         "baseQtyEv":"1000000000",
        #         "feeCurrency":"4",
        #         "stopDirection":"UNSPECIFIED",
        #         "symbol":"sETHUSDT",
        #         "side":"Buy",
        #         "quoteQtyEv":250000000000,
        #         "priceEp":25000000000,
        #         "ordType":"Limit",
        #         "timeInForce":"GoodTillCancel",
        #         "ordStatus":"Rejected",
        #         "execStatus":"NewRejected",
        #         "createTimeNs":1592675305266037130,
        #         "cumFeeEv":0,
        #         "cumBaseValueEv":0,
        #         "cumQuoteValueEv":0
        #     }
        #
        id = self.safe_string(order, 'orderID')
        clientOrderId = self.safe_string(order, 'clOrdID')
        if (clientOrderId is not None) and (len(clientOrderId) < 1):
            clientOrderId = None
        marketId = self.safe_string(order, 'symbol')
        symbol = self.safe_symbol(marketId, market)
        price = self.from_ep(self.safe_float(order, 'priceEp'), market)
        if price == 0:
            price = None
        amount = self.from_ev(self.safe_float(order, 'baseQtyEv'), market)
        remaining = self.from_ev(self.safe_float(order, 'leavesBaseQtyEv'), market)
        filled = self.from_ev(self.safe_float(order, 'cumBaseQtyEv'), market)
        cost = self.from_ev(self.safe_float(order, 'quoteQtyEv'), market)
        average = self.from_ep(self.safe_float(order, 'avgPriceEp'), market)
        status = self.parse_order_status(self.safe_string(order, 'ordStatus'))
        side = self.safe_string_lower(order, 'side')
        type = self.parse_order_type(self.safe_string(order, 'ordType'))
        timestamp = self.safe_integer_product_2(order, 'actionTimeNs', 'createTimeNs', 0.000001)
        fee = None
        feeCost = self.from_ev(self.safe_float(order, 'cumFeeEv'), market)
        if feeCost is not None:
            fee = {
                'cost': feeCost,
                'currency': None,
            }
        if filled is None:
            if (amount is not None) and (remaining is not None):
                filled = min(0, amount - remaining)
        timeInForce = self.parse_time_in_force(self.safe_string(order, 'timeInForce'))
        stopPrice = self.from_ep(self.safe_float(order, 'stopPxEp', market))
        postOnly = (timeInForce == 'PO')
        return {
            'info': order,
            'id': id,
            'clientOrderId': clientOrderId,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'lastTradeTimestamp': None,
            'symbol': symbol,
            'type': type,
            'timeInForce': timeInForce,
            'postOnly': postOnly,
            'side': side,
            'price': price,
            'stopPrice': stopPrice,
            'amount': amount,
            'cost': cost,
            'average': average,
            'filled': filled,
            'remaining': remaining,
            'status': status,
            'fee': fee,
            'trades': None,
        }

    def parse_swap_order(self, order, market=None):
        #
        #     {
        #         "bizError":0,
        #         "orderID":"7a1ad384-44a3-4e54-a102-de4195a29e32",
        #         "clOrdID":"",
        #         "symbol":"ETHUSD",
        #         "side":"Buy",
        #         "actionTimeNs":1592668973945065381,
        #         "transactTimeNs":0,
        #         "orderType":"Market",
        #         "priceEp":2267500,
        #         "price":226.75000000,
        #         "orderQty":1,
        #         "displayQty":0,
        #         "timeInForce":"ImmediateOrCancel",
        #         "reduceOnly":false,
        #         "closedPnlEv":0,
        #         "closedPnl":0E-8,
        #         "closedSize":0,
        #         "cumQty":0,
        #         "cumValueEv":0,
        #         "cumValue":0E-8,
        #         "leavesQty":1,
        #         "leavesValueEv":11337,
        #         "leavesValue":1.13370000,
        #         "stopDirection":"UNSPECIFIED",
        #         "stopPxEp":0,
        #         "stopPx":0E-8,
        #         "trigger":"UNSPECIFIED",
        #         "pegOffsetValueEp":0,
        #         "execStatus":"PendingNew",
        #         "pegPriceType":"UNSPECIFIED",
        #         "ordStatus":"Created"
        #     }
        #
        id = self.safe_string(order, 'orderID')
        clientOrderId = self.safe_string(order, 'clOrdID')
        if (clientOrderId is not None) and (len(clientOrderId) < 1):
            clientOrderId = None
        marketId = self.safe_string(order, 'symbol')
        symbol = self.safe_symbol(marketId, market)
        status = self.parse_order_status(self.safe_string(order, 'ordStatus'))
        side = self.safe_string_lower(order, 'side')
        type = self.parse_order_type(self.safe_string(order, 'orderType'))
        price = self.from_ep(self.safe_float(order, 'priceEp'), market)
        amount = self.safe_float(order, 'orderQty')
        filled = self.safe_float(order, 'cumQty')
        remaining = self.safe_float(order, 'leavesQty')
        timestamp = self.safe_integer_product(order, 'actionTimeNs', 0.000001)
        cost = self.safe_float(order, 'cumValue')
        lastTradeTimestamp = self.safe_integer_product(order, 'transactTimeNs', 0.000001)
        if lastTradeTimestamp == 0:
            lastTradeTimestamp = None
        timeInForce = self.parse_time_in_force(self.safe_string(order, 'timeInForce'))
        stopPrice = self.safe_float(order, 'stopPx')
        postOnly = (timeInForce == 'PO')
        return {
            'info': order,
            'id': id,
            'clientOrderId': clientOrderId,
            'datetime': self.iso8601(timestamp),
            'timestamp': timestamp,
            'lastTradeTimestamp': lastTradeTimestamp,
            'symbol': symbol,
            'type': type,
            'timeInForce': timeInForce,
            'postOnly': postOnly,
            'side': side,
            'price': price,
            'stopPrice': stopPrice,
            'amount': amount,
            'filled': filled,
            'remaining': remaining,
            'cost': cost,
            'average': None,
            'status': status,
            'fee': None,
            'trades': None,
        }

    def parse_order(self, order, market=None):
        if 'closedPnl' in order:
            return self.parse_swap_order(order, market)
        return self.parse_spot_order(order, market)

    async def create_order(self, symbol, type, side, amount, price=None, params={}):
        await self.load_markets()
        market = self.market(symbol)
        side = self.capitalize(side)
        type = self.capitalize(type)
        request = {
            # common
            'symbol': market['id'],
            'side': side,  # Sell, Buy
            'ordType': type,  # Market, Limit, Stop, StopLimit, MarketIfTouched, LimitIfTouched or Pegged for swap orders
            # 'stopPxEp': self.to_ep(stopPx, market),  # for conditional orders
            # 'priceEp': self.to_ep(price, market),  # required for limit orders
            # 'timeInForce': 'GoodTillCancel',  # GoodTillCancel, PostOnly, ImmediateOrCancel, FillOrKill
            # ----------------------------------------------------------------
            # spot
            # 'qtyType': 'ByBase',  # ByBase, ByQuote
            # 'quoteQtyEv': self.to_ep(cost, market),
            # 'baseQtyEv': self.to_ev(amount, market),
            # 'trigger': 'ByLastPrice',  # required for conditional orders
            # ----------------------------------------------------------------
            # swap
            # 'clOrdID': self.uuid(),  # max length 40
            # 'orderQty': self.amount_to_precision(amount, symbol),
            # 'reduceOnly': False,
            # 'closeOnTrigger': False,  # implicit reduceOnly and cancel other orders in the same direction
            # 'takeProfitEp': self.to_ep(takeProfit, market),
            # 'stopLossEp': self.to_ep(stopLossEp, market),
            # 'triggerType': 'ByMarkPrice',  # ByMarkPrice, ByLastPrice
            # 'pegOffsetValueEp': integer,  # Trailing offset from current price. Negative value when position is long, positive when position is short
            # 'pegPriceType': 'TrailingStopPeg',  # TrailingTakeProfitPeg
            # 'text': 'comment',
        }
        if market['spot']:
            qtyType = self.safe_value(params, 'qtyType', 'ByBase')
            if (type == 'Market') or (type == 'Stop') or (type == 'MarketIfTouched'):
                if price is not None:
                    qtyType = 'ByQuote'
            request['qtyType'] = qtyType
            if qtyType == 'ByQuote':
                cost = self.safe_float(params, 'cost')
                params = self.omit(params, 'cost')
                if self.options['createOrderByQuoteRequiresPrice']:
                    if price is not None:
                        cost = amount * price
                    elif cost is None:
                        raise ArgumentsRequired(self.id + ' createOrder() ' + qtyType + ' requires a price argument or a cost parameter')
                cost = amount if (cost is None) else cost
                request['quoteQtyEv'] = self.to_ep(cost, market)
            else:
                request['baseQtyEv'] = self.to_ev(amount, market)
        elif market['swap']:
            request['orderQty'] = int(amount)
        if type == 'Limit':
            request['priceEp'] = self.to_ep(price, market)
        stopPrice = self.safe_float_2(params, 'stopPx', 'stopPrice')
        if stopPrice is not None:
            request['stopPxEp'] = self.to_ep(stopPrice, market)
        params = self.omit(params, ['stopPx', 'stopPrice'])
        method = 'privatePostSpotOrders' if market['spot'] else 'privatePostOrders'
        response = await getattr(self, method)(self.extend(request, params))
        #
        # spot
        #
        #     {
        #         "code": 0,
        #         "msg": "",
        #         "data": {
        #             "orderID": "d1d09454-cabc-4a23-89a7-59d43363f16d",
        #             "clOrdID": "309bcd5c-9f6e-4a68-b775-4494542eb5cb",
        #             "priceEp": 0,
        #             "action": "New",
        #             "trigger": "UNSPECIFIED",
        #             "pegPriceType": "UNSPECIFIED",
        #             "stopDirection": "UNSPECIFIED",
        #             "bizError": 0,
        #             "symbol": "sBTCUSDT",
        #             "side": "Buy",
        #             "baseQtyEv": 0,
        #             "ordType": "Limit",
        #             "timeInForce": "GoodTillCancel",
        #             "ordStatus": "Created",
        #             "cumFeeEv": 0,
        #             "cumBaseQtyEv": 0,
        #             "cumQuoteQtyEv": 0,
        #             "leavesBaseQtyEv": 0,
        #             "leavesQuoteQtyEv": 0,
        #             "avgPriceEp": 0,
        #             "cumBaseAmountEv": 0,
        #             "cumQuoteAmountEv": 0,
        #             "quoteQtyEv": 0,
        #             "qtyType": "ByBase",
        #             "stopPxEp": 0,
        #             "pegOffsetValueEp": 0
        #         }
        #     }
        #
        # swap
        #
        #     {
        #         "code":0,
        #         "msg":"",
        #         "data":{
        #             "bizError":0,
        #             "orderID":"7a1ad384-44a3-4e54-a102-de4195a29e32",
        #             "clOrdID":"",
        #             "symbol":"ETHUSD",
        #             "side":"Buy",
        #             "actionTimeNs":1592668973945065381,
        #             "transactTimeNs":0,
        #             "orderType":"Market",
        #             "priceEp":2267500,
        #             "price":226.75000000,
        #             "orderQty":1,
        #             "displayQty":0,
        #             "timeInForce":"ImmediateOrCancel",
        #             "reduceOnly":false,
        #             "closedPnlEv":0,
        #             "closedPnl":0E-8,
        #             "closedSize":0,
        #             "cumQty":0,
        #             "cumValueEv":0,
        #             "cumValue":0E-8,
        #             "leavesQty":1,
        #             "leavesValueEv":11337,
        #             "leavesValue":1.13370000,
        #             "stopDirection":"UNSPECIFIED",
        #             "stopPxEp":0,
        #             "stopPx":0E-8,
        #             "trigger":"UNSPECIFIED",
        #             "pegOffsetValueEp":0,
        #             "execStatus":"PendingNew",
        #             "pegPriceType":"UNSPECIFIED",
        #             "ordStatus":"Created"
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        return self.parse_order(data, market)

    async def cancel_order(self, id, symbol=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' cancelOrder() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        request = {
            'symbol': market['id'],
        }
        clientOrderId = self.safe_string_2(params, 'clientOrderId', 'clOrdID')
        params = self.omit(params, ['clientOrderId', 'clOrdID'])
        if clientOrderId is not None:
            request['clOrdID'] = clientOrderId
        else:
            request['orderID'] = id
        method = 'privateDeleteSpotOrders' if market['spot'] else 'privateDeleteOrdersCancel'
        response = await getattr(self, method)(self.extend(request, params))
        data = self.safe_value(response, 'data', {})
        return self.parse_order(data, market)

    async def cancel_all_orders(self, symbol=None, params={}):
        await self.load_markets()
        request = {
            # 'symbol': market['id'],
            # 'untriggerred': False,  # False to cancel non-conditional orders, True to cancel conditional orders
            # 'text': 'up to 40 characters max',
        }
        market = None
        if symbol is not None:
            market = self.market(symbol)
            if not market['swap']:
                raise NotSupported(self.id + ' cancelAllOrders() supports swap market type orders only')
            request['symbol'] = market['id']
        return await self.privateDeleteOrdersAll(self.extend(request, params))

    async def fetch_order(self, id, symbol=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOrder() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        method = 'privateGetSpotOrdersActive' if market['spot'] else 'privateGetExchangeOrder'
        request = {
            'symbol': market['id'],
        }
        clientOrderId = self.safe_string_2(params, 'clientOrderId', 'clOrdID')
        params = self.omit(params, ['clientOrderId', 'clOrdID'])
        if clientOrderId is not None:
            request['clOrdID'] = clientOrderId
        else:
            request['orderID'] = id
        response = await getattr(self, method)(self.extend(request, params))
        data = self.safe_value(response, 'data', {})
        order = data
        if isinstance(data, list):
            numOrders = len(data)
            if numOrders < 1:
                if clientOrderId is not None:
                    raise OrderNotFound(self.id + ' fetchOrder ' + symbol + ' order with clientOrderId ' + clientOrderId + ' not found')
                else:
                    raise OrderNotFound(self.id + ' fetchOrder ' + symbol + ' order with id ' + id + ' not found')
            order = self.safe_value(data, 0, {})
        return self.parse_order(order, market)

    async def fetch_orders(self, symbol=None, since=None, limit=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOrders() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        method = 'privateGetSpotOrders' if market['spot'] else 'privateGetExchangeOrderList'
        request = {
            'symbol': market['id'],
        }
        if since is not None:
            request['start'] = since
        if limit is not None:
            request['limit'] = limit
        response = await getattr(self, method)(self.extend(request, params))
        data = self.safe_value(response, 'data', {})
        rows = self.safe_value(data, 'rows', [])
        return self.parse_orders(rows, market, since, limit)

    async def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOpenOrders() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        method = 'privateGetSpotOrders' if market['spot'] else 'privateGetOrdersActiveList'
        request = {
            'symbol': market['id'],
        }
        try:
            response = await getattr(self, method)(self.extend(request, params))
            data = self.safe_value(response, 'data', {})
            if isinstance(data, list):
                return self.parse_orders(data, market, since, limit)
            else:
                rows = self.safe_value(data, 'rows', [])
                return self.parse_orders(rows, market, since, limit)
        except Exception as e:
            return []

    async def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchClosedOrders() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        method = 'privateGetExchangeSpotOrder' if market['spot'] else 'privateGetExchangeOrderList'
        request = {
            'symbol': market['id'],
        }
        if since is not None:
            request['start'] = since
        if limit is not None:
            request['limit'] = limit
        response = await getattr(self, method)(self.extend(request, params))
        #
        # spot
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":{
        #             "total":8,
        #             "rows":[
        #                 {
        #                     "orderID":"99232c3e-3d6a-455f-98cc-2061cdfe91bc",
        #                     "stopPxEp":0,
        #                     "avgPriceEp":0,
        #                     "qtyType":"ByBase",
        #                     "leavesBaseQtyEv":0,
        #                     "leavesQuoteQtyEv":0,
        #                     "baseQtyEv":"1000000000",
        #                     "feeCurrency":"4",
        #                     "stopDirection":"UNSPECIFIED",
        #                     "symbol":"sETHUSDT",
        #                     "side":"Buy",
        #                     "quoteQtyEv":250000000000,
        #                     "priceEp":25000000000,
        #                     "ordType":"Limit",
        #                     "timeInForce":"GoodTillCancel",
        #                     "ordStatus":"Rejected",
        #                     "execStatus":"NewRejected",
        #                     "createTimeNs":1592675305266037130,
        #                     "cumFeeEv":0,
        #                     "cumBaseValueEv":0,
        #                     "cumQuoteValueEv":0
        #                 },
        #             ]
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        if isinstance(data, list):
            return self.parse_orders(data, market, since, limit)
        else:
            rows = self.safe_value(data, 'rows', [])
            return self.parse_orders(rows, market, since, limit)

    async def fetch_my_trades(self, symbol=None, since=None, limit=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchClosedOrders() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        method = 'privateGetExchangeSpotOrderTrades' if market['spot'] else 'privateGetExchangeOrderTrade'
        request = {
            'symbol': market['id'],
        }
        if since is not None:
            request['start'] = since
        if market['swap'] and (limit is not None):
            request['limit'] = limit
        response = await getattr(self, method)(self.extend(request, params))
        #
        # spot
        #
        #     {
        #         "code": 0,
        #         "msg": "OK",
        #         "data": {
        #             "total": 1,
        #             "rows": [
        #                 {
        #                     "qtyType": "ByQuote",
        #                     "transactTimeNs": 1589450974800550100,
        #                     "clOrdID": "8ba59d40-df25-d4b0-14cf-0703f44e9690",
        #                     "orderID": "b2b7018d-f02f-4c59-b4cf-051b9c2d2e83",
        #                     "symbol": "sBTCUSDT",
        #                     "side": "Buy",
        #                     "priceEP": 970056000000,
        #                     "baseQtyEv": 0,
        #                     "quoteQtyEv": 1000000000,
        #                     "action": "New",
        #                     "execStatus": "MakerFill",
        #                     "ordStatus": "Filled",
        #                     "ordType": "Limit",
        #                     "execInst": "None",
        #                     "timeInForce": "GoodTillCancel",
        #                     "stopDirection": "UNSPECIFIED",
        #                     "tradeType": "Trade",
        #                     "stopPxEp": 0,
        #                     "execId": "c6bd8979-07ba-5946-b07e-f8b65135dbb1",
        #                     "execPriceEp": 970056000000,
        #                     "execBaseQtyEv": 103000,
        #                     "execQuoteQtyEv": 999157680,
        #                     "leavesBaseQtyEv": 0,
        #                     "leavesQuoteQtyEv": 0,
        #                     "execFeeEv": 0,
        #                     "feeRateEr": 0
        #                 }
        #             ]
        #         }
        #     }
        #
        #
        # swap
        #
        #     {
        #         "code": 0,
        #         "msg": "OK",
        #         "data": {
        #             "total": 79,
        #             "rows": [
        #                 {
        #                     "transactTimeNs": 1606054879331565300,
        #                     "symbol": "BTCUSD",
        #                     "currency": "BTC",
        #                     "action": "New",
        #                     "side": "Buy",
        #                     "tradeType": "Trade",
        #                     "execQty": 5,
        #                     "execPriceEp": 182990000,
        #                     "orderQty": 5,
        #                     "priceEp": 183870000,
        #                     "execValueEv": 27323,
        #                     "feeRateEr": 75000,
        #                     "execFeeEv": 21,
        #                     "ordType": "Market",
        #                     "execID": "5eee56a4-04a9-5677-8eb0-c2fe22ae3645",
        #                     "orderID": "ee0acb82-f712-4543-a11d-d23efca73197",
        #                     "clOrdID": "",
        #                     "execStatus": "TakerFill"
        #                 },
        #             ]
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        rows = self.safe_value(data, 'rows', [])
        return self.parse_trades(rows, market, since, limit)

    async def fetch_deposit_address(self, code, params={}):
        await self.load_markets()
        currency = self.currency(code)
        request = {
            'currency': currency['id'],
        }
        response = await self.privateGetPhemexUserWalletsV2DepositAddress(self.extend(request, params))
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":{
        #             "address":"0x5bfbf60e0fa7f63598e6cfd8a7fd3ffac4ccc6ad",
        #             "tag":null
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        address = self.safe_string(data, 'address')
        tag = self.safe_string(data, 'tag')
        self.check_address(address)
        return {
            'currency': code,
            'address': address,
            'tag': tag,
            'info': response,
        }

    async def fetch_deposits(self, code=None, since=None, limit=None, params={}):
        await self.load_markets()
        currency = None
        if code is not None:
            currency = self.currency(code)
        response = await self.privateGetExchangeWalletsDepositList(params)
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":[
        #             {
        #                 "id":29200,
        #                 "currency":"USDT",
        #                 "currencyCode":3,
        #                 "txHash":"0x0bdbdc47807769a03b158d5753f54dfc58b92993d2f5e818db21863e01238e5d",
        #                 "address":"0x5bfbf60e0fa7f63598e6cfd8a7fd3ffac4ccc6ad",
        #                 "amountEv":3000000000,
        #                 "confirmations":13,
        #                 "type":"Deposit",
        #                 "status":"Success",
        #                 "createdAt":1592722565000
        #             }
        #         ]
        #     }
        #
        data = self.safe_value(response, 'data', {})
        return self.parse_transactions(data, currency, since, limit)

    async def fetch_withdrawals(self, code=None, since=None, limit=None, params={}):
        await self.load_markets()
        currency = None
        if code is not None:
            currency = self.currency(code)
        response = await self.privateGetExchangeWalletsWithdrawList(params)
        #
        #     {
        #         "code":0,
        #         "msg":"OK",
        #         "data":[
        #             {
        #                 "address": "1Lxxxxxxxxxxx"
        #                 "amountEv": 200000
        #                 "currency": "BTC"
        #                 "currencyCode": 1
        #                 "expiredTime": 0
        #                 "feeEv": 50000
        #                 "rejectReason": null
        #                 "status": "Succeed"
        #                 "txHash": "44exxxxxxxxxxxxxxxxxxxxxx"
        #                 "withdrawStatus: ""
        #             }
        #         ]
        #     }
        #
        data = self.safe_value(response, 'data', {})
        return self.parse_transactions(data, currency, since, limit)

    def parse_transaction_status(self, status):
        statuses = {
            'Success': 'ok',
            'Succeed': 'ok',
        }
        return self.safe_string(statuses, status, status)

    def parse_transaction(self, transaction, currency=None):
        #
        # withdraw
        #
        #     ...
        #
        # fetchDeposits
        #
        #     {
        #         "id":29200,
        #         "currency":"USDT",
        #         "currencyCode":3,
        #         "txHash":"0x0bdbdc47807769a03b158d5753f54dfc58b92993d2f5e818db21863e01238e5d",
        #         "address":"0x5bfbf60e0fa7f63598e6cfd8a7fd3ffac4ccc6ad",
        #         "amountEv":3000000000,
        #         "confirmations":13,
        #         "type":"Deposit",
        #         "status":"Success",
        #         "createdAt":1592722565000
        #     }
        #
        # fetchWithdrawals
        #
        #     {
        #         "address": "1Lxxxxxxxxxxx"
        #         "amountEv": 200000
        #         "currency": "BTC"
        #         "currencyCode": 1
        #         "expiredTime": 0
        #         "feeEv": 50000
        #         "rejectReason": null
        #         "status": "Succeed"
        #         "txHash": "44exxxxxxxxxxxxxxxxxxxxxx"
        #         "withdrawStatus: ""
        #     }
        #
        id = self.safe_string(transaction, 'id')
        address = self.safe_string(transaction, 'address')
        tag = None
        txid = self.safe_string(transaction, 'txHash')
        currencyId = self.safe_string(transaction, 'currency')
        currency = self.safe_currency(currencyId, currency)
        code = currency['code']
        timestamp = self.safe_integer_2(transaction, 'createdAt', 'submitedAt')
        type = self.safe_string_lower(transaction, 'type')
        feeCost = self.from_en(self.safe_float(transaction, 'feeEv'), currency['valueScale'], currency['precision'])
        fee = None
        if feeCost is not None:
            type = 'withdrawal'
            fee = {
                'cost': feeCost,
                'currency': code,
            }
        status = self.parse_transaction_status(self.safe_string(transaction, 'status'))
        amount = self.from_en(self.safe_float(transaction, 'amountEv'), currency['valueScale'], currency['precision'])
        return {
            'info': transaction,
            'id': id,
            'txid': txid,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'address': address,
            'addressTo': address,
            'addressFrom': None,
            'tag': tag,
            'tagTo': tag,
            'tagFrom': None,
            'type': type,
            'amount': amount,
            'currency': code,
            'status': status,
            'updated': None,
            'fee': fee,
        }

    async def fetch_positions(self, symbols=None, since=None, limit=None, params={}):
        await self.load_markets()
        code = self.safe_string(params, 'code')
        request = {}
        if code is None:
            currencyId = self.safe_string(params, 'currency')
            if currencyId is None:
                raise ArgumentsRequired(self.id + ' fetchPositions() requires a currency parameter or a code parameter')
        else:
            currency = self.currency(code)
            params = self.omit(params, 'code')
            request['currency'] = currency['id']
        response = await self.privateGetAccountsAccountPositions(self.extend(request, params))
        #
        #     {
        #         "code":0,"msg":"",
        #         "data":{
        #             "account":{
        #                 "accountId":6192120001,
        #                 "currency":"BTC",
        #                 "accountBalanceEv":1254744,
        #                 "totalUsedBalanceEv":0,
        #                 "bonusBalanceEv":1254744
        #             },
        #             "positions":[
        #                 {
        #                     "accountID":6192120001,
        #                     "symbol":"BTCUSD",
        #                     "currency":"BTC",
        #                     "side":"None",
        #                     "positionStatus":"Normal",
        #                     "crossMargin":false,
        #                     "leverageEr":100000000,
        #                     "leverage":1.00000000,
        #                     "initMarginReqEr":100000000,
        #                     "initMarginReq":1.00000000,
        #                     "maintMarginReqEr":500000,
        #                     "maintMarginReq":0.00500000,
        #                     "riskLimitEv":10000000000,
        #                     "riskLimit":100.00000000,
        #                     "size":0,
        #                     "value":0E-8,
        #                     "valueEv":0,
        #                     "avgEntryPriceEp":0,
        #                     "avgEntryPrice":0E-8,
        #                     "posCostEv":0,
        #                     "posCost":0E-8,
        #                     "assignedPosBalanceEv":0,
        #                     "assignedPosBalance":0E-8,
        #                     "bankruptCommEv":0,
        #                     "bankruptComm":0E-8,
        #                     "bankruptPriceEp":0,
        #                     "bankruptPrice":0E-8,
        #                     "positionMarginEv":0,
        #                     "positionMargin":0E-8,
        #                     "liquidationPriceEp":0,
        #                     "liquidationPrice":0E-8,
        #                     "deleveragePercentileEr":0,
        #                     "deleveragePercentile":0E-8,
        #                     "buyValueToCostEr":100225000,
        #                     "buyValueToCost":1.00225000,
        #                     "sellValueToCostEr":100075000,
        #                     "sellValueToCost":1.00075000,
        #                     "markPriceEp":135736070,
        #                     "markPrice":13573.60700000,
        #                     "markValueEv":0,
        #                     "markValue":null,
        #                     "unRealisedPosLossEv":0,
        #                     "unRealisedPosLoss":null,
        #                     "estimatedOrdLossEv":0,
        #                     "estimatedOrdLoss":0E-8,
        #                     "usedBalanceEv":0,
        #                     "usedBalance":0E-8,
        #                     "takeProfitEp":0,
        #                     "takeProfit":null,
        #                     "stopLossEp":0,
        #                     "stopLoss":null,
        #                     "cumClosedPnlEv":0,
        #                     "cumFundingFeeEv":0,
        #                     "cumTransactFeeEv":0,
        #                     "realisedPnlEv":0,
        #                     "realisedPnl":null,
        #                     "cumRealisedPnlEv":0,
        #                     "cumRealisedPnl":null
        #                 }
        #             ]
        #         }
        #     }
        #
        data = self.safe_value(response, 'data', {})
        positions = self.safe_value(data, 'positions', [])
        # todo unify parsePosition/parsePositions
        return positions

    def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
        query = self.omit(params, self.extract_params(path))
        requestPath = '/' + self.implode_params(path, params)
        url = requestPath
        queryString = ''
        if (method == 'GET') or (method == 'DELETE') or (method == 'PUT'):
            if query:
                queryString = self.urlencode_with_array_repeat(query)
                url += '?' + queryString
        if api == 'private':
            self.check_required_credentials()
            timestamp = self.seconds()
            xPhemexRequestExpiry = self.safe_integer(self.options, 'x-phemex-request-expiry', 60)
            expiry = self.sum(timestamp, xPhemexRequestExpiry)
            expiryString = str(expiry)
            headers = {
                'x-phemex-access-token': self.apiKey,
                'x-phemex-request-expiry': expiryString,
            }
            payload = ''
            if method == 'POST':
                payload = self.json(params)
                body = payload
                headers['Content-Type'] = 'application/json'
            auth = requestPath + queryString + expiryString + payload
            headers['x-phemex-request-signature'] = self.hmac(self.encode(auth), self.encode(self.secret))
        url = self.urls['api'][api] + url
        return {'url': url, 'method': method, 'body': body, 'headers': headers}

    def handle_errors(self, httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody):
        if response is None:
            return  # fallback to default error handler
        #
        #     {"code":30018,"msg":"phemex.data.size.uplimt","data":null}
        #     {"code":412,"msg":"Missing parameter - resolution","data":null}
        #     {"code":412,"msg":"Missing parameter - to","data":null}
        #     {"error":{"code":6001,"message":"invalid argument"},"id":null,"result":null}
        #
        error = self.safe_value(response, 'error', response)
        errorCode = self.safe_string(error, 'code')
        message = self.safe_string(error, 'msg')
        if (errorCode is not None) and (errorCode != '0'):
            feedback = self.id + ' ' + body
            self.throw_exactly_matched_exception(self.exceptions['exact'], errorCode, feedback)
            self.throw_broadly_matched_exception(self.exceptions['broad'], message, feedback)
            raise ExchangeError(feedback)  # unknown message
