OKX & Binance Websocket-Hochfrequenzhandelsvorlage (mehrere Varianten)


Erstellungsdatum: 2022-12-27 15:37:42 zuletzt geändert: 2024-01-02 16:36:13
Kopie: 75 Klicks: 4507
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Funktionalität:

  • Öffentliche Abonnements, Trades und Deep Synthesis
  • Private Streaming-Abonnements, Aufrechterhaltung von lokalen Aufträgen und Positionen sowie Saldoinformationen
  • Vermeidung von Auftragsausfall und Unterstützung von OKX-amendOrders
  • Unterstützung für mehrere Sorten, bequeme Hochfrequenz-Strategie, um mehrere Märkte gleichzeitig mit geringster Verzögerung zu betreiben
  • Hinzufügen der Funktion EventLoop (mit Unterstützung des aktuellen Host), die bei mehreren Websocket-Verbindungen auf die Rückgabe beliebiger Websocket-Daten warten kann, um Umfragen zu vermeiden
  • Unterstützt wird OKX mit Binance-Futures und Binance-Cash-Leveraged Trading, OKX-Cash wird vorerst nicht unterstützt, Interessenten können dies selbst ändern
  • OKX Private Stream Abonnements benötigen einen Schlüssel und ein Passwort, die als Parameter in der Vorlage geschrieben sind
  • Automatisiert einige grundlegende Funktionen des Netzwerks, wie z. B. die Wiederverbindung von Trennlinien
  • Zurückruf von Ereignissen, die die Rückzahlung von Transaktionen für private Strombestellungen unterstützen
  • Einheitliche Auftragslogik der beiden Börsen, z. B. durch die Vorlagen oder Beispiele
  • Websocket-Schnittstelle für die gleichzeitige Anmeldung an mehreren Börsen
  • Änderungen und Löschungen der Bestellungen können in der Menge als Auftrag zurückgegeben werden, und die Transaktionsaufgaben werden automatisch verarbeitet

Bei Hochfrequenz-Bestellungen werden die Bestellungen nicht rechtzeitig zurückgeschickt (privater Kanal), aber die Situation könnte sich geändert haben, und wir müssen einen lokalen Bestellstatus aufrechterhalten. Die Vorlage wird automatisch als OKX oder Binance identifiziert, hier ist ein einfaches Beispiel, es wird dringend empfohlen, den Quellcode zu lesen, damit Sie Ihre eigenen Funktionen auf eine tiefere Ebene anpassen können

Hier ist ein einfaches Beispiel.


function onTick(ctx, event) {
    if (event.depth) {
        Log("depth update", event)
    }
    if (event.trades) {
        Log("trades received", event)
    }
    if (event.balance || event.positions) {
        Log("account update", event)
    }
    if (event.orders) {
        Log("private orders update", event)
    }
    
    // include orders, positions, balance for latest
    Log("account", ctx.wsPrivate.account)
    
    // for test only
    if (false) {
        return {
            amendOrders: [{
                instId: event.instId,
                clOrdId: "xxxx*****",
                cxlOnFail: true,
                newSz: "2",
            }],
            newOrders: [{
                instId: event.instId,
                clOrdId: UUID(),
                side: "sell",
                tdMode: "cross",
                ordType: "post_only",
                px: event.depth.asks[0].price.toFixed(4),
                sz: "1",
            }, {
                instId: event.instId,
                clOrdId: UUID(),
                side: "sell",
                tdMode: "cross",
                ordType: "post_only",
                px: event.depth.asks[0].price.toFixed(4),
                sz: "1",
            }],
            cancelOrders: [{
                instId: order.instId,
                clOrdId: order.Id
            }]
        }
    }
}

function main() {
    let instId = exchange.SetContractType("swap").InstrumentID

    let ctx = $.NewWSS(exchange, function(ws) {
        let msg = null
        if (exchange.GetName() === 'Futures_OKCoin') {
            msg = {
                op: "subscribe",
                args: [{
                    channel: "books5",
                    instId: instId,
                }, {
                    channel: "trades",
                    instId: instId,
                }]
            }
        } else {
            let symbol = exchange.GetCurrency().replace('_', '').toLowerCase()
            msg = {
                method: "SUBSCRIBE",
                params: [symbol + "@aggTrade", symbol + "@depth20@100ms"],
                id: "1",
            }
        }
        ws.write(JSON.stringify(msg))
        Log("subscribe", msg, "channel")
        LogStatus("Ready")
    }, onTick, Debug)

    while (true) {
        ctx.poll()
        EventLoop(1000)
    }
}

Es funktioniert wie folgt: Sie können auch mehrere Sorten in einer Abonnementfunktion abonnieren.

OKX & Binance Websocket-Hochfrequenzhandelsvorlage (mehrere Varianten)

Das Ergebnis einer OKX-Binance-Marketingstrategie basierend auf dieser Vorlage:

OKX & Binance Websocket-Hochfrequenzhandelsvorlage (mehrere Varianten)

OKX & Binance Websocket-Hochfrequenzhandelsvorlage (mehrere Varianten)

Strategiequellcode

/* jshint esversion: 6 */
// AccessKey and Phassphrase only need if OKX
$.NewWSS = function(e, onWSSLogin, onWSSTick, Debug, UseMargin, AccessKey, Passphrase) {
    function NewOKXWebSocketPrivate(ctx) {
        let self = {
            ws: null,
            isReadyDic: {},
            lastPing: 0,
            ctx: ctx,
            account: {
                orders: {},
                cancelPending: {},
                ordersCount: {
                    pending: 0,
                    buy: 0,
                    amend: 0,
                    canceled: 0,
                    filled: 0,
                    push: 0,
                    sell: 0
                },
                positions: {},
                balance: {},
                init_balance: {},
                balanceUpdate: 0,
                positionsUpdate: 0,
                ordersUpdate: 0
            }
        }
        let acc = _C(ctx.e.GetAccount)
        let pair = ctx.e.GetCurrency().split('_')
        self.account.balance[pair[1]] = {
            free: acc.Balance,
            borrowed: 0,
            locked: 0
        }
        self.account.balance[pair[0]] = {
            free: acc.Stock,
            borrowed: 0,
            locked: 0
        }
        self.account.init_balance[pair[1]] = {
            free: acc.Balance,
            borrowed: 0,
            locked: 0
        }
        self.account.init_balance[pair[0]] = {
            free: acc.Stock,
            borrowed: 0,
            locked: 0
        }

        self.reset = function() {
            if (self.ws) {
                self.ws.close()
                self.ws = null
            }
            self.isReadyDic = {}
        }
        self.send = function(msg) {
            if (!self.ws) {
                return
            }
            self.ws.write(JSON.stringify(msg))
        }

        self.getOrdersMap = function(instId) {
            let mp = self.account.orders[instId]
            if (typeof(mp) === 'undefined') {
                mp = {}
                self.account.orders[instId] = mp
            }
            return mp
        }

        self.batchOrders = function(orders) {
            for (let i = 0; i < orders.length; i += 20) {
                self.send({
                    "id": "batchOrders",
                    "op": "batch-orders",
                    "args": orders.slice(i, i + 20)
                })
                if (Debug) {
                    Log("batchOrders", orders.slice(i, i + 20))
                }
            }
            let ts = new Date().getTime()
            orders.forEach(function(item) {
                let mp = self.getOrdersMap(item.instId)
                mp[item.clOrdId] = {
                    Id: item.clOrdId,
                    Created: ts,
                    instId: item.instId,
                    Price: Number(item.px),
                    Amount: Number(item.sz),
                    Type: item.side == "sell" ? ORDER_TYPE_SELL : ORDER_TYPE_BUY,
                    DealAmount: 0,
                    Status: ORDER_STATE_PENDING
                }
            })
        }

        self.cancelOrders = function(orders) {
            let ts = new Date().getTime()

            orders.forEach(function(item) {
                if (typeof(self.account.cancelPending[item.clOrdId]) === 'undefined') {
                    self.account.cancelPending[item.clOrdId] = {
                        retry: 0,
                        ts: ts,
                        data: item
                    }
                }
            })

            // remove from orders
            orders.forEach(function(item) {
                delete self.getOrdersMap(item.instId)[item.clOrdId]
            })

            for (let id in self.account.cancelPending) {
                let item = self.account.cancelPending[id]
                if (ts - item.ts > 10000) {
                    // recancel
                    orders.push(item.data)
                    Log("remove timeout order", item, "#ff0000")
                    item.retry += 1
                    item.ts = ts
                }
                if (item.retry > 10) {
                    Log("force remove order", item, "#ff0000")
                    delete self.account.cancelPending[id]
                }
            }

            for (let i = 0; i < orders.length; i += 20) {
                self.send({
                    "id": "cancelOrders",
                    "op": "batch-cancel-orders",
                    "args": orders.slice(i, i + 20)
                })
            }

            if (Debug) {
                Log("cancelOrders", orders)
            }
        }

        self.amendOrders = function(orders) {
            let ts = new Date().getTime()
            orders.forEach(function(item) {
                let order = self.getOrdersMap(item.instId)[item.clOrdId]
                if (order) {
                    order.Price = Number(item.newPx)
                    order.Amount = Number(item.newSz)
                    order.Update = undefined
                    order.Created = ts
                }
            })

            self.send({
                "id": "amendOrders",
                "op": "batch-amend-orders",
                "args": orders,
            })

            if (Debug) {
                Log("amendOrders", orders)
            }
        }

        self.processOrders = function(data, reset) {
            let ret = []
            if (Debug) {
                Log("ORDERS: ", data)
            }
            if (reset) {
                self.account.orders = {}
                for (let k in self.account.ordersCount) {
                    self.account.ordersCount[k] = 0
                }
            }

            data.forEach(function(item) {
                let mp = self.getOrdersMap(item.instId)
                let dataOrder = {
                    Id: item.clOrdId,
                    instId: item.instId,
                    Info: item,
                    Price: Number(item.px),
                    Amount: Number(item.sz),
                    Update: Number(item.uTime || item.cTime),
                    Created: Number(item.cTime),
                    Type: item.side == "buy" ? ORDER_TYPE_BUY : ORDER_TYPE_SELL,
                    DealAmount: Number(item.accFillSz)
                }
                if (item.state == "canceled") {
                    dataOrder.Status = ORDER_STATE_CANCELED
                    self.account.ordersCount.canceled += 1
                    self.account.ordersCount.pending -= 1
                } else if (item.state == "live") {
                    dataOrder.Status = ORDER_STATE_PENDING
                    if (item.amendResult == "0") {
                        self.account.ordersCount.amend += 1
                    } else {
                        self.account.ordersCount.push += 1
                        self.account.ordersCount.pending += 1
                    }
                } else if (item.state == "partially_filled") {
                    dataOrder.Status = ORDER_STATE_PENDING
                } else if (item.state == "filled") {
                    dataOrder.Status = ORDER_STATE_CLOSED
                    self.account.ordersCount.filled += 1
                    self.account.ordersCount.pending -= 1
                } else {
                    throw "unknow order state " + JSON.stringify(item)
                }

                // remove from cancelPending orders
                if (dataOrder.Status != ORDER_STATE_PENDING) {
                    delete self.account.cancelPending[dataOrder.Id]
                    if (Debug) {
                        Log("remove from cancel pending orders", dataOrder)
                    }
                }


                // update anyway
                let oldOrder = mp[dataOrder.Id]

                if ((!oldOrder) || (dataOrder.DealAmount != oldOrder.DealAmount)) {
                    if (item.state == "partially_filled" || item.state == "filled") {
                        Log(item.state, item.side, dataOrder, (item.clOrdId.indexOf('YYYYY') == 0 ? '#ff0000' : ''))
                    }
                }

                let update = false
                if (dataOrder.Status == ORDER_STATE_PENDING) {
                    // 修改订单的命令还没返回就收到了new订单的update导致时间序列错乱
                    if (oldOrder) {
                        update = true
                        Object.assign(oldOrder, dataOrder)
                    } else {
                        mp[dataOrder.Id] = dataOrder
                        update = true
                    }
                    if (Debug) {
                        let suffix = ''
                        if (self.ctx.depth) {
                            suffix = 'bid:' + JSON.stringify(self.ctx.depth.bids[0]) + ', ask:' + JSON.stringify(self.ctx.depth.asks[0])
                        }
                        Log("update order", Boolean(oldOrder), mp[dataOrder.Id], item, suffix)
                    }
                } else {
                    update = true
                    if (oldOrder) {
                        // avoid ref
                        oldOrder.Status = dataOrder.Status
                        delete mp[dataOrder.Id]
                    }
                    if (Debug) {
                        Log("order " + item.state, dataOrder)
                    }
                }

                if (update) {
                    ret.push(dataOrder)
                }
                self.account.ordersUpdate = Number(item.uTime || item.cTime)
            })
            return ret
        }

        self.processMsg = function(msg) {
            if (Debug) {
                Log("MSG:", msg)
            }
            let obj = JSON.parse(msg)
            if (obj.event == "error") {
                Log("Error:", obj.msg)
                Sleep(1000)
                self.ws.close()
            } else if (obj.event == "login") {
                Log("Login success")
                self.ws.write(JSON.stringify({
                    "op": "subscribe",
                    "args": [{
                        "channel": "balance_and_position"
                    }, {
                        "channel": "orders",
                        "instType": "ANY"
                    }]
                }))
            } else if (obj.event == "subscribe") {
                Log("subscribe OK", obj.arg.channel)
                if (obj.arg.channel == "orders" && !self.isReadyDic["orders"]) {
                    let ret = self.ctx.e.IO("api", "GET", "/api/v5/trade/orders-pending")
                    if (ret && ret.code == "0") {
                        self.processOrders(ret.data, true)
                        Log("pocess orders ok", self.account.ordersCount)
                    } else {
                        Log("process order failed", ret, "#ff0000")
                    }
                    self.isReadyDic["orders"] = true
                }
            } else if (obj && obj.arg && obj.data && obj.data.length > 0) {
                let event = {}
                if (obj.arg.channel == 'balance_and_position') {
                    if (Debug) {
                        Log(obj, "#ff0000")
                    }
                    event.ts = Number(obj.data[0].pTime)
                    if (obj.data[0].posData) {
                        let positions = {}
                        obj.data[0].posData.forEach(function(item) {
                            if (typeof(positions[item.instId]) === 'undefined') {
                                positions[item.instId] = 0
                            }
                            positions[item.instId] = {
                                Amount: Number(item.pos),
                                Price: Number(item.avgPx)
                            }
                            self.account.positionsUpdate = Number(item.uTime)
                        })
                        for (let instId in positions) {
                            self.account.positions[instId] = positions[instId]
                        }
                        event.positions = positions
                    }
                    if (obj.data[0].balData) {
                        let balance = {}
                        obj.data[0].balData.forEach(function(item) {
                            balance[item.ccy] = {
                                free: Number(item.cashBal),
                                locked: 0
                            }
                            self.account.balanceUpdate = Number(item.uTime)
                        })
                        for (let instId in balance) {
                            self.account.balance[instId] = balance[instId]
                        }
                        event.balance = balance
                    }
                    self.isReadyDic["account"] = true
                } else if (obj.arg.channel == 'orders') {
                    event.orders = self.processOrders(obj.data)
                    event.ts = Number(obj.data[0].uTime)
                } else {
                    // {"id":"amendOrders","op":"batch-amend-orders" ...}
                    //Log("DATA RECV", "<" + msg + ">")
                }
                // position change
                if (event.ts) {
                    self.ctx.processTick(event)
                }
            } else {
                //Log("RECV", "<" + msg + ">")
            }
        }

        self.poll = function(timeout) {

            if (typeof(AccessKey) === 'undefined' || AccessKey.length == 0) {
                return
            }

            let ts = new Date().getTime()
            if (self.lastPing == 0) {
                self.lastPing = ts
            }
            if (self.ws == null) {
                self.ws = Dial("wss://ws.okx.com:8443/ws/v5/private")
                if (self.ws) {
                    let tsStr = (ts / 1000).toString()
                    let authMsg = {
                        "op": "login",
                        "args": [{
                            "apiKey": AccessKey,
                            "passphrase": Passphrase,
                            "timestamp": tsStr,
                            "sign": self.ctx.e.HMAC("sha256", "base64", tsStr + "GET" + "/users/self/verify", "{{secretkey}}")
                        }]
                    }
                    self.ws.write(JSON.stringify(authMsg))
                }
            }
            if (!self.ws) {
                return;
            }

            if (ts - self.lastPing > 10000) {
                self.ws.write("ping")
                self.lastPing = ts
            }

            let lastRead = false
            while (true) {
                let msg = self.ws.read(-1)
                if (msg == "") {
                    self.reset()
                    break
                }
                if (msg == null) {
                    if (typeof(timeout) == 'number' && timeout > 0) {
                        msg = self.ws.read(timeout)
                        lastRead = true
                    }
                }
                if (msg != null && msg != "") {
                    if (msg != "pong" && msg != "ping") {
                        self.processMsg(msg)
                    }
                } else {
                    break
                }
                if (lastRead) {
                    break
                }
            }
        }
        return self
    }


    function NewOKXWebSocketPublic(e, onLogin, onTick) {
        var crc32 = function(r) {
            for (var a, o = [], c = 0; c < 256; c++) {
                a = c;
                for (var f = 0; f < 8; f++) a = 1 & a ? 3988292384 ^ a >>> 1 : a >>> 1;
                o[c] = a
            }
            for (var n = -1, t = 0; t < r.length; t++) n = n >>> 8 ^ o[255 & (n ^ r.charCodeAt(t))];
            return (-1 ^ n) >>> 0
        };

        let self = {
            e: e,
            key: e.GetName() + '/' + e.GetCurrency(),
            quoteCurrency: e.GetQuoteCurrency(),
            name: e.GetName(),
            isFutures: e.GetName().indexOf("Futures_") == 0,
            ws: null,
            cache: {},
            channles: [],
            depthCount: 0,
            depthConsumed: 0,
            lastPing: 0,
            depthDic: {},
            lastMarket: 0
        }
        self.wsPrivate = NewOKXWebSocketPrivate(self)

        self.processTick = function(event) {
            if (typeof(onTick) !== 'function') {
                return
            }
            let ret = onTick(self, event)
            if (ret) {
                if (ret.newOrders && ret.newOrders.length > 0) {
                    ret.ctx.wsPrivate.batchOrders(ret.newOrders)
                }
                if (ret.amendOrders && ret.amendOrders.length > 0) {
                    ret.ctx.wsPrivate.amendOrders(ret.amendOrders)
                }
                if (ret.cancelOrders && ret.cancelOrders.length > 0) {
                    ret.ctx.wsPrivate.cancelOrders(ret.cancelOrders)
                }
            }
        }

        self.processMsg = function(msg) {
            if (Debug) {
                Log("MSG:", msg)
            }
            let obj = JSON.parse(msg)
            if (obj.event == 'subscribe') {
                self.channles.push(obj)
            } else if (obj.event == 'error') {
                throw obj.msg
            } else if (obj.event == 'login') {
                self.channles = []
                if (typeof(onLogin) === 'function') {
                    onLogin(self.ws, self.e)
                }
            } else {
                self.lastMarket = new Date().getTime();
                let instId = obj.arg.instId
                let event = {
                    instId: instId
                }
                obj.data.forEach(function(item) {
                    if (obj.arg.channel == 'trades') {
                        if (typeof(event.trades) === 'undefined') {
                            event.trades = []
                        }
                        event.ts = Number(item.ts)
                        event.trades.push({
                            ts: Number(item.ts),
                            side: item.side,
                            price: Number(item.px),
                            qty: Number(item.sz)
                        })
                    } else if (obj.arg.channel == 'books5' || obj.arg.channel == 'books' || obj.arg.channel == 'books50-l2-tbt') {
                        let tsBegin = UnixNano()
                        let depth = {
                            asks: [],
                            bids: []
                        }
                        if (obj.arg.channel == 'books5') {
                            item.asks.forEach(function(pair) {
                                depth.asks.push({
                                    price: Number(pair[0]),
                                    qty: Number(pair[1])
                                })
                            })
                            item.bids.forEach(function(pair) {
                                depth.bids.push({
                                    price: Number(pair[0]),
                                    qty: Number(pair[1])
                                })
                            })
                        } else {
                            let depthDic = self.depthDic[instId]
                            if (typeof(depthDic) === 'undefined') {
                                depthDic = {
                                    count: 0,
                                    dic: {
                                        asks: {},
                                        bids: {}
                                    }
                                }
                                self.depthDic[instId] = depthDic
                            }
                            depthDic.count += 1
                            for (let k in depthDic.dic) {
                                if (obj.action == 'snapshot') {
                                    depthDic.dic[k] = {}
                                }
                                let mp = depthDic.dic[k]
                                item[k].forEach(function(book) {
                                    if (book[1] == '0') {
                                        delete mp[book[0]]
                                    } else {
                                        mp[book[0]] = [book[1], book[3], item['ts']]
                                    }
                                })
                            }

                            for (let k in depth) {
                                let n = k == 'asks' ? 1 : -1
                                let mp = depthDic.dic[k]
                                Object.keys(depthDic.dic[k]).sort(function(a, b) {
                                    return n * (Number(a) - Number(b))
                                }).forEach(function(x) {
                                    // keep string for 
                                    depth[k].push({
                                        price: x,
                                        qty: mp[x][0]
                                    })
                                })
                            }

                            if (depthDic.count % 5000 == 0) {
                                let s = []
                                for (let i = 0; i < 25; i++) {
                                    ['bids', 'asks'].forEach(function(k) {
                                        if (i < depth[k].length) {
                                            s.push(depth[k][i].price + ':' + depth[k][i].qty)
                                        }
                                    })
                                }
                                if (crc32(s.join(":")) != Uint32Array.from(Int32Array.of(item.checksum))[0]) {
                                    throw "depth checksum error"
                                }
                            }
                            // convert to number
                            for (let dir in depth) {
                                let books = depth[dir]
                                for (let i = 0; i < books.length; i++) {
                                    books[i].price = Number(books[i].price)
                                    books[i].qty = Number(books[i].qty)
                                }
                            }
                        }
                        event.depth = depth
                        event.ts = Number(item.ts)
                    }
                })
                if (event.ts) {
                    self.processTick(event)
                }
            }
        }

        self.isReady = function() {
            return self.wsPrivate.isReadyDic["account"] && self.wsPrivate.isReadyDic["orders"]
        }

        self.reset = function() {
            if (self.ws) {
                self.ws.close()
                self.ws = null
            }
            self.depthDic = {}
            self.isReadyDic = {}
        }

        self.poll = function(timeout) {
            let ts = new Date().getTime()
            if (self.lastPing == 0) {
                self.lastPing = ts
            }
            if (!self.ws) {
                self.ws = Dial("wss://ws.okx.com:8443/ws/v5/public")
                if (!self.ws) {
                    return
                }
                if (typeof(AccessKey) === 'undefined' || AccessKey.length == 0) {
                    if (typeof(onLogin) === 'function') {
                        onLogin(self.ws, self.e)
                    }
                } else {
                    let tsStr = (new Date().getTime() / 1000).toString()
                    let authMsg = {
                        "op": "login",
                        "args": [{
                            "apiKey": AccessKey,
                            "passphrase": Passphrase,
                            "timestamp": tsStr,
                            "sign": self.e.HMAC("sha256", "base64", tsStr + "GET" + "/users/self/verify", "{{secretkey}}")
                        }]
                    }
                    self.ws.write(JSON.stringify(authMsg))
                }
            }
            if (!self.ws) {
                return
            }
            if (ts - self.lastPing > 10000) {
                self.ws.write("ping")
                self.lastPing = ts
            }
            let lastRead = false
            while (true) {
                let msg = self.ws.read(-1)
                if (msg == "") {
                    self.reset()
                    break
                }
                if (msg == null) {
                    if (typeof(timeout) == 'number' && timeout > 0) {
                        msg = self.ws.read(timeout)
                        lastRead = true
                    }
                }
                if (msg != null && msg != "") {
                    if (msg != "pong") {
                        self.wsPrivate.poll()
                        self.processMsg(msg)
                        self.wsPrivate.poll()
                    }
                } else {
                    break
                }
                if (lastRead) {
                    break
                }
            }
            self.wsPrivate.poll()
        }
        return self
    }


    function NewBinanceSocketPrivate(ctx) {
        let self = {
            ws: null,
            isFutures: ctx.isFutures,
            isReadyDic: {},
            lastPing: 0,
            ctx: ctx,
            useMargin: UseMargin,
            quoteCurrency: ctx.e.GetQuoteCurrency(),
            listenKey: null,
            listenKeyUpdate: 0,
            account: {
                cancelPending: {},
                orders: {},
                ordersCount: {
                    pending: 0,
                    buy: 0,
                    amend: 0,
                    canceled: 0,
                    filled: 0,
                    push: 0,
                    sell: 0
                },
                positions: {},
                balance: {},
                init_balance: {},
                balanceUpdate: 0,
                positionsUpdate: 0,
                ordersUpdate: 0
            }
        }

        if (ctx.isFutures) {
            // TODO change to api
            let positions = _C(exchange.GetPosition)
            positions.forEach(function(pos) {
                // avoid self.instId
                self.account.positions[self.instId] = {
                    Amount: pos.Amount * (pos.Type == PD_LONG ? 1 : -1),
                    Price: pos.Price
                }
            })
        }
        let pair = ctx.e.GetCurrency().split('_')
        if (self.useMargin && !ctx.isFutures) {
            let ret = _C(ctx.e.IO, "api", "GET", "/sapi/v1/margin/account")
            ret.userAssets.forEach(function(item) {
                if (item.asset == pair[0] || item.asset == pair[1]) {
                    self.account.balance[item.asset] = {
                        free: Number(item.free),
                        locked: Number(item.locked),
                        borrowed: Number(item.borrowed),
                    }
                    self.account.init_balance[item.asset] = {
                        free: Number(item.free),
                        locked: Number(item.locked),
                        borrowed: Number(item.borrowed)
                    }
                }
            })
            self.tradePath = "/sapi/v1/margin/order"
        } else {
            let acc = _C(ctx.e.GetAccount)
            self.account.balance[pair[1]] = {
                free: acc.Balance,
                locked: acc.FrozenBalance,
                borrowed: 0
            }
            self.account.balance[pair[0]] = {
                free: acc.Stocks,
                locked: acc.FrozenStocks,
                borrowed: 0
            }
            self.account.init_balance[pair[1]] = {
                free: acc.Balance,
                locked: acc.FrozenBalance,
                borrowed: 0
            }
            self.account.init_balance[pair[0]] = {
                free: acc.Stocks,
                locked: acc.FrozenStocks,
                borrowed: 0
            }
            self.tradePath = "/api/v3/order"
        }
        Log(ctx.e.GetName(), self.account.init_balance)

        self.getOrdersMap = function(instId) {
            let mp = self.account.orders[instId]
            if (typeof(mp) === 'undefined') {
                mp = {}
                self.account.orders[instId] = mp
            }
            return mp
        }

        self.reset = function() {
            if (self.ws) {
                self.ws.close()
                self.ws = null
            }
            self.isReadyDic = {}
        }

        self.send = function(msg) {
            if (!self.ws) {
                return
            }
            self.ws.write(JSON.stringify(msg))
        }

        self.batchOrders = function(orders) {
            let args = []
            let ts = new Date().getTime()
            orders.forEach(function(item) {
                args.push({
                    symbol: item.instId,
                    side: item.side.toUpperCase(),
                    newClientOrderId: item.clOrdId,
                    type: "LIMIT",
                    price: item.px,
                    quantity: item.sz,
                    timeInForce: "GTX",
                })
                self.getOrdersMap(item.instId)[item.clOrdId] = {
                    Id: item.clOrdId,
                    Created: ts,
                    instId: item.instId,
                    Price: Number(item.px),
                    Amount: Number(item.sz),
                    Type: item.side == "sell" ? ORDER_TYPE_SELL : ORDER_TYPE_BUY,
                    DealAmount: 0,
                    Status: ORDER_STATE_PENDING
                }
            })
            let rets = []
            if (self.ctx.isFutures) {
                for (let i = 0; i < args.length; i += 5) {
                    let ret = self.ctx.e.IO("api", "POST", "/fapi/v1/batchOrders", "", JSON.stringify({
                        batchOrders: args.slice(i, i + 5)
                    }))
                    if (Debug) {
                        Log("batchOrders", args, ret)
                    }
                    rets.push(ret)
                }
            } else {
                orders.forEach(function(order) {
                    let ret = self.ctx.e.IO("api", "POST", self.tradePath, "", JSON.stringify(order))
                    if (Debug) {
                        Log("batchOrders", args, ret)
                    }
                    rets.push(ret)
                })
            }
            return rets
        }

        self.cancelOrders = function(orders) {
            let ts = new Date().getTime()

            orders.forEach(function(item) {
                if (typeof(self.account.cancelPending[item.clOrdId]) === 'undefined') {
                    self.account.cancelPending[item.clOrdId] = {
                        retry: 0,
                        ts: ts,
                        data: item
                    }
                }
            })

            for (let id in self.account.cancelPending) {
                let item = self.account.cancelPending[id]
                if (ts - item.ts > 10000) {
                    // recancel
                    orders.push(item.data)
                    Log("remove timeout order", item, "#ff0000")
                    item.retry += 1
                    item.ts = ts
                }
                if (item.retry > 10) {
                    Log("force remove order", item, "#ff0000")
                    delete self.account.cancelPending[id]
                }
            }


            let mp = {}
            orders.forEach(function(item) {
                if (typeof(mp[item.instId]) === 'undefined') {
                    mp[item.instId] = []
                }
                mp[item.instId].push(item.clOrdId)
                delete self.getOrdersMap(item.instId)[item.clOrdId]
            })
            let rets = []
            if (self.ctx.isFutures) {
                for (let instId in mp) {
                    let arr = mp[instId]
                    for (let i = 0; i < arr.length; i += 5) {
                        let ids = arr.slice(i, i + 5)
                        let ret = self.ctx.e.IO("api", "DELETE", "/fapi/v1/batchOrders", "", JSON.stringify({
                            symbol: instId,
                            origClientOrderIdList: ids
                        }))
                        if (Debug) {
                            Log("cancelOrders", instId, arr, ret)
                        }
                        // cancel success
                        if (ret && ret.length == ids.length) {
                            ids.forEach(function(id) {
                                delete self.account.cancelPending[id]
                            })
                        }
                        rets.push(ret)
                    }
                }
            } else {
                for (let i = 0; i < orders.length; i += 5) {
                    let ret = self.ctx.e.IO("api", "DELETE", self.tradePath, "", JSON.stringify(orders[i]))
                    if (Debug) {
                        Log("cancelOrders", orders[i], ret)
                    }
                    rets.push(ret)
                }
            }

            return rets
        }

        self.processOrders = function(ts, data, reset) {
            if (Debug) {
                Log("ORDERS: ", data)
            }
            if (reset) {
                self.account.orders = {}
                for (let k in self.account.ordersCount) {
                    self.account.ordersCount[k] = 0
                }
            }
            let ret = []
            data.forEach(function(item) {
                let instId = item.s
                let dataOrder = {
                    Id: item.C || item.c,
                    instId: instId,
                    Info: item,
                    Price: Number(item.p),
                    Amount: Number(item.q),
                    Update: Number(item.T || item.E || ts),
                    Created: Number(item.O || item.E || ts),
                    Type: item.S == "BUY" ? ORDER_TYPE_BUY : ORDER_TYPE_SELL,
                    DealAmount: Number(item.z)
                }
                if (typeof(item.ap) !== 'undefined') {
                    dataOrder.AvgPrice = Number(item.ap)
                } else if (Number(item.z) > 0 && typeof(item.Z) !== 'undefined') {
                    dataOrder.AvgPrice = Number(item.Z) / Number(item.z)
                }

                if (item.X == "NEW") {
                    dataOrder.Status = ORDER_STATE_PENDING
                    self.account.ordersCount.push += 1
                    self.account.ordersCount.pending += 1
                } else if (item.X == "PARTIALLY_FILLED") {
                    dataOrder.Status = ORDER_STATE_PENDING
                } else if (item.X == "FILLED") {
                    dataOrder.Status = ORDER_STATE_CLOSED
                    self.account.ordersCount.filled += 1
                    self.account.ordersCount.pending -= 1
                } else if (item.X == "CANCELED" || item.X == "EXPIRED" || item.X == "REJECT" || item.X == "NEW_INSURANCE" || item.X == "NEW_ADL") {
                    dataOrder.Status = ORDER_STATE_CANCELED
                    self.account.ordersCount.canceled += 1
                    self.account.ordersCount.pending -= 1
                } else {
                    throw "unknow order state " + JSON.stringify(item)
                }

                // remove from cancelPending orders
                if (dataOrder.Status != ORDER_STATE_PENDING) {
                    delete self.account.cancelPending[dataOrder.Id]
                    if (Debug) {
                        Log("remove from cancel pending orders", dataOrder)
                    }
                }

                let mp = self.getOrdersMap(instId)
                let oldOrder = mp[dataOrder.Id]

                if ((!oldOrder) || (dataOrder.DealAmount != oldOrder.DealAmount)) {
                    if (item.X == "PARTIALLY_FILLED" || item.X == "FILLED") {
                        Log(item.X, item.S, dataOrder)
                    }
                }

                let update = false
                if (dataOrder.Status == ORDER_STATE_PENDING) {
                    // 修改订单的命令还没返回就收到了new订单的update导致时间序列错乱
                    if (oldOrder) {
                        update = true
                        Object.assign(oldOrder, dataOrder)
                    } else {
                        mp[dataOrder.Id] = dataOrder
                        update = true
                    }
                    if (Debug) {
                        Log("update order", Boolean(oldOrder), mp[dataOrder.Id], item)
                    }
                } else {
                    update = true
                    if (oldOrder) {
                        // avoid ref
                        Object.assign(oldOrder, dataOrder)
                        delete mp[dataOrder.Id]
                    }
                    if (Debug) {
                        Log("order " + item.X, dataOrder)
                    }
                }
                if (update) {
                    ret.push(dataOrder)
                }
                self.account.ordersUpdate = ts
            })
            return ret
        }

        self.processPrivateMsg = function(msg) {
            let obj = JSON.parse(msg)
            if (Debug) {
                Log(obj, "#ff0000")
            }
            let event = {}
            if (obj.e == "ORDER_TRADE_UPDATE") {
                event.orders = self.processOrders(obj.E, [obj.o])
                event.ts = obj.E
                self.isReadyDic["orders"] = true
            } else if (obj.e == "ACCOUNT_UPDATE" && obj.a) {
                event.ts = obj.E
                self.account.balanceUpdate = obj.E
                if (obj.a.B) {
                    obj.a.B.forEach(function(item) {
                        self.account.balance[item.a] = {
                            free: Number(item.wb),
                            locked: 0
                        }
                    })
                    event.balance = self.account.balance
                }
                if (obj.a.P) {
                    obj.a.P.forEach(function(item) {
                        self.account.positions[item.s] = {
                            Amount: Number(item.pa),
                            Price: Number(item.ep)
                        }
                        self.account.positionsUpdate = obj.E
                    })
                    event.positions = self.account.positions
                }
                self.isReadyDic["account"] = true
            } else if (obj.e == "outboundAccountPosition") {
                event.ts = obj.E
                self.account.balanceUpdate = obj.E
                if (obj.B) {
                    obj.B.forEach(function(item) {
                        self.account.balance[item.a] = {
                            free: Number(item.f),
                            locked: Number(item.l)
                        }
                    })
                    event.balance = self.account.balance
                }
                self.isReadyDic["account"] = true
            } else if (obj.e == "executionReport") {
                event.orders = self.processOrders(obj.E, [obj])
                event.ts = obj.E
                self.isReadyDic["orders"] = true
            } else {
                //Log("RECV", "<" + msg + ">")
            }

            if (event.ts) {
                self.ctx.processTick(event)
            }
        }

        self.poll = function(timeout) {
            let ts = new Date().getTime()
            if (self.lastPing == 0) {
                self.lastPing = ts
            }
            if (!self.listenKey || ts - self.listenKeyUpdate > 60000 * 30) {
                let ret = self.ctx.e.IO("api", "POST", self.ctx.isFutures ? "/fapi/v1/listenKey" : (self.useMargin ? "/sapi/v1/userDataStream" : "/api/v3/userDataStream"))
                if (ret && ret.listenKey) {
                    self.listenKey = ret.listenKey
                    self.listenKeyUpdate = ts
                    //Log("ListenKey Update", ret)
                }
            }
            if (!self.listenKey) {
                return
            }
            if (self.ws == null) {
                let base = (self.ctx.isFutures ? 'wss://fstream.binance.com' : 'wss://stream.binance.com:9443') + "/ws"
                Log("Dial: ", base + "/*****")
                self.ws = Dial(base + "/" + self.listenKey)
            }

            if (!self.ws) {
                return;
            }

            let lastRead = false
            while (true) {
                let msg = self.ws.read(-1)
                if (msg == "") {
                    Log("Binance private websocket reset")
                    self.reset()
                    break
                }
                if (msg == null) {
                    if (typeof(timeout) == 'number' && timeout > 0) {
                        msg = self.ws.read(timeout)
                        lastRead = true
                    }
                }
                if (msg != null && msg != "") {
                    //Log("BP", msg)
                    if (msg == "ping") {
                        self.ws.write("pong")
                        self.lastPing = ts
                    } else if (msg != "pong") {
                        self.processPrivateMsg(msg)
                    }
                } else {
                    break
                }
                if (lastRead) {
                    break
                }
            }
        }
        return self
    }

    function NewBinanceWebSocketPublic(e, onLogin, onTick) {
        let self = {
            e: e,
            key: e.GetName() + '/' + e.GetCurrency(),
            quoteCurrency: e.GetQuoteCurrency(),
            name: e.GetName(),
            isFutures: e.GetName().indexOf("Futures_") == 0,
            ws: null,
            cache: {},
            depthCount: 0,
            depthConsumed: 0,
            lastPing: 0,
            isReadyDic: {}
        }
        self.base = self.isFutures ? "wss://fstream.binance.com/ws" : "wss://stream.binance.com/ws"

        self.wsPrivate = NewBinanceSocketPrivate(self)

        self.reset = function() {
            if (self.ws) {
                self.ws.close()
                self.ws = null
            }
            self.isReadyDic = {}
        }

        self.processTick = function(event) {
            if (typeof(onTick) !== 'function') {
                return
            }
            let ret = onTick(self, event)
            if (ret) {
                if (ret.amendOrders && ret.amendOrders.length > 0) {
                    ret.ctx.wsPrivate.amendOrders(ret.amendOrders)
                }
                if (ret.cancelOrders && ret.cancelOrders.length > 0) {
                    ret.ctx.wsPrivate.cancelOrders(ret.cancelOrders)
                }
                if (ret.newOrders && ret.newOrders.length > 0) {
                    ret.ctx.wsPrivate.batchOrders(ret.newOrders)
                }
            }
        }

        self.processMsg = function(msg) {
            if (Debug) {
                Log("MSG:", msg)
            }
            let obj = JSON.parse(msg)
            if (obj.error) {
                Log(obj)
                throw obj.error.msg
            }

            let event = {
                ts: obj.E,
                instId: obj.s
            }

            if (obj.e == "depthUpdate") {
                let depth = {
                    asks: [],
                    bids: []
                }
                obj.b.forEach(function(item) {
                    depth.bids.push({
                        price: Number(item[0]),
                        qty: Number(item[1])
                    })
                })
                obj.a.forEach(function(item) {
                    depth.asks.push({
                        price: Number(item[0]),
                        qty: Number(item[1])
                    })
                })
                event.depth = depth
                //self.depthTime = obj.data.E
            } else if (obj.e == 'aggTrade') {
                event.ts = obj.E
                event.trades = [{
                    price: Number(obj.p),
                    qty: Number(obj.q),
                    ts: obj.T,
                    side: obj.m ? "sell" : "buy"
                }]
            } else if (typeof(obj.asks) !== 'undefined') {
                let depth = {
                    asks: [],
                    bids: []
                }
                obj.bids.forEach(function(item) {
                    depth.bids.push({
                        price: Number(item[0]),
                        qty: Number(item[1])
                    })
                })
                obj.asks.forEach(function(item) {
                    depth.asks.push({
                        price: Number(item[0]),
                        qty: Number(item[1])
                    })
                })
                event.ts = obj.E || new Date().getTime()
                event.depth = depth
            } else {
                Log(">>>", msg)
                return
            }

            self.processTick(event)
        }

        self.isReady = function() {
            return self.wsPrivate.ws != null
        }

        self.poll = function(timeout) {
            let ts = new Date().getTime()
            if (!self.ws) {
                Log("Dial: ", self.base)
                self.ws = Dial(self.base)
                if (self.ws) {
                    onLogin(self.ws, self.e)
                }
            }
            if (!self.ws) {
                return
            }
            let lastRead = false
            while (true) {
                let msg = self.ws.read(-1)
                if (msg == "") {
                    if (Debug) {
                        Log("DEBUG> RESET websocket", self.base, "#ff0000")
                    }
                    self.reset()
                    break
                }
                if (msg == null) {
                    if (typeof(timeout) == 'number' && timeout > 0) {
                        msg = self.ws.read(timeout)
                        lastRead = true
                    }
                }
                if (msg != null && msg != "") {
                    if (msg == "ping") {
                        self.ws.write("pong")
                        self.lastPing = ts
                    } else if (msg == "pong") {
                        // ignore
                    } else {
                        self.wsPrivate.poll()
                        self.processMsg(msg)
                        self.wsPrivate.poll()
                    }
                } else {
                    break
                }
                if (lastRead) {
                    break
                }
            }
            self.wsPrivate.poll()
        }
        return self
    }
    if (typeof(__threadId) == 'function' && __threadId() != 0) {
        // thread register
        this.NewWSS = function(e, onWSSLogin, onWSSTick) {
            let pfn = null
            if (e.GetName().indexOf("Binance") != -1) {
                pfn = NewBinanceWebSocketPublic
                Log("New Binance websocket", e.GetName(), e.GetCurrency())
            } else {
                pfn = NewOKXWebSocketPublic
                Log("New OKX Websocket", e.GetName(), e.GetCurrency())
            }
            return pfn(e, onWSSLogin, onWSSTick)
        }
        return
    }
    let pfn = null
    if (e.GetName().indexOf("Binance") != -1) {
        pfn = NewBinanceWebSocketPublic
        Log("New Binance websocket", e.GetName(), e.GetCurrency())
    } else {
        pfn = NewOKXWebSocketPublic
        Log("New OKX Websocket", e.GetName(), e.GetCurrency())
    }
    return pfn(e, onWSSLogin, onWSSTick)
}


function onTick(ctx, event) {
    if (event.depth) {
        Log("depth update", event)
    }
    if (event.trades) {
        Log("trades received", event)
    }
    if (event.balance || event.positions) {
        Log("account update", event)
    }
    if (event.orders) {
        Log("private orders update", event)
    }

    // include orders, positions, balance for latest
    Log("account", ctx.wsPrivate.account)

    // for test only
    if (false) {
        return {
            amendOrders: [{
                instId: event.instId,
                clOrdId: "xxxx*****",
                cxlOnFail: true,
                newSz: "2",
            }],
            newOrders: [{
                instId: event.instId,
                clOrdId: UUID(),
                side: "sell",
                tdMode: "cross",
                ordType: "post_only",
                px: event.depth.asks[0].price.toFixed(4),
                sz: "1",
            }, {
                instId: event.instId,
                clOrdId: UUID(),
                side: "sell",
                tdMode: "cross",
                ordType: "post_only",
                px: event.depth.asks[0].price.toFixed(4),
                sz: "1",
            }],
            cancelOrders: [{
                instId: order.instId,
                clOrdId: order.Id
            }]
        }
    }
}

function main() {
    let instId = exchange.SetContractType("swap").InstrumentID

    let ctx = $.NewWSS(exchange, function(ws) {
        let msg = null
        if (exchange.GetName() === 'Futures_OKCoin') {
            msg = {
                op: "subscribe",
                args: [{
                    channel: "books5",
                    instId: instId,
                }, {
                    channel: "trades",
                    instId: instId,
                }]
            }
        } else {
            let symbol = exchange.GetCurrency().replace('_', '').toLowerCase()
            msg = {
                method: "SUBSCRIBE",
                params: [symbol + "@aggTrade", symbol + "@depth20@100ms"],
                id: 1,
            }
        }
        ws.write(JSON.stringify(msg))
        Log("subscribe", msg, "channel")
        LogStatus("Ready")
    }, onTick, false)

    while (true) {
        ctx.poll()
        EventLoop(1000)
    }
}