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More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","const {\r\n createCommon,\r\n setOptions,\r\n publicRequest,\r\n apiRequest,\r\n signedRequest,\r\n promiseRequest,\r\n pullKeys,\r\n} = require('./common');\r\n\r\nconst main = function Main(common) {\r\n //'use strict'; // eslint-disable-line no-unused-expressions\r\n // let Binance = this; // eslint-disable-line consistent-this\r\n\r\n /**\r\n * Gets depth cache for given symbol\r\n * @param {string} symbol - the symbol to fetch\r\n * @return {object} - the depth cache object\r\n */\r\n const getDepthCache = (symbol) => {\r\n if (typeof common.depthCache[symbol] === 'undefined')\r\n return { bids: {}, asks: {} };\r\n return common.depthCache[symbol];\r\n };\r\n\r\n /**\r\n * Calculate Buy/Sell volume from DepthCache\r\n * @param {string} symbol - the symbol to fetch\r\n * @return {object} - the depth volume cache object\r\n */\r\n const depthVolume = (symbol) => {\r\n let cache = getDepthCache(symbol),\r\n quantity,\r\n price;\r\n let bidbase = 0,\r\n askbase = 0,\r\n bidqty = 0,\r\n askqty = 0;\r\n for (price in cache.bids) {\r\n quantity = cache.bids[price];\r\n bidbase += parseFloat((quantity * parseFloat(price)).toFixed(8));\r\n bidqty += quantity;\r\n }\r\n for (price in cache.asks) {\r\n quantity = cache.asks[price];\r\n askbase += parseFloat((quantity * parseFloat(price)).toFixed(8));\r\n askqty += quantity;\r\n }\r\n return { bids: bidbase, asks: askbase, bidQty: bidqty, askQty: askqty };\r\n };\r\n\r\n /**\r\n * Gets depth cache for given symbol\r\n * @param {symbol} symbol - 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1, 0);\r\n const decimalIndex = qtyString.indexOf('.');\r\n return parseFloat(qtyString.slice(0, decimalIndex + desiredDecimals + 1));\r\n };\r\n\r\n /**\r\n * rounds price to required precision\r\n * @param {float} price - price to round\r\n * @param {float} tickSize - tickSize as specified by exchangeInfo\r\n * @return {float} - number\r\n */\r\n this.roundTicks = function (price, tickSize) {\r\n const formatter = new Intl.NumberFormat('en-US', {\r\n style: 'decimal',\r\n minimumFractionDigits: 0,\r\n maximumFractionDigits: 8,\r\n });\r\n const precision = formatter.format(tickSize).split('.')[1].length || 0;\r\n if (typeof price === 'string') price = parseFloat(price);\r\n return price.toFixed(precision);\r\n };\r\n\r\n /**\r\n * Reverses the keys of an object\r\n * @param {object} object - the object\r\n * @return {object} - the object\r\n */\r\n this.reverse = function (object) {\r\n let range = Object.keys(object).reverse(),\r\n output = {};\r\n for (let price of range) {\r\n output[price] = object[price];\r\n }\r\n return output;\r\n };\r\n\r\n /**\r\n * Converts an object to an array\r\n * @param {object} obj - the object\r\n * @return {array} - the array\r\n */\r\n this.array = function (obj) {\r\n return Object.keys(obj).map(function (key) {\r\n return [Number(key), obj[key]];\r\n });\r\n };\r\n\r\n /**\r\n * Sorts bids\r\n * @param {string} symbol - the object\r\n * @param {int} max - the max number of bids\r\n * @param {string} baseValue - the object\r\n * @return {object} - the object\r\n */\r\n this.sortBids = function (symbol, max = Infinity, baseValue = false) {\r\n let object = {},\r\n count = 0,\r\n cache;\r\n if (typeof symbol === 'object') cache = symbol;\r\n else cache = getDepthCache(symbol).bids;\r\n let sorted = Object.keys(cache).sort(function (a, b) {\r\n return parseFloat(b) - parseFloat(a);\r\n });\r\n let cumulative = 0;\r\n for (let price of sorted) {\r\n if (baseValue === 'cumulative') {\r\n cumulative += parseFloat(cache[price]);\r\n object[price] = cumulative;\r\n } else if (!baseValue) object[price] = parseFloat(cache[price]);\r\n else\r\n object[price] = parseFloat(\r\n (cache[price] * parseFloat(price)).toFixed(8)\r\n );\r\n if (++count >= max) break;\r\n }\r\n return object;\r\n };\r\n\r\n /**\r\n * Sorts asks\r\n * @param {string} symbol - the object\r\n * @param {int} max - the max number of bids\r\n * @param {string} baseValue - the object\r\n * @return {object} - the object\r\n */\r\n this.sortAsks = function (symbol, max = Infinity, baseValue = false) {\r\n let object = {},\r\n count = 0,\r\n cache;\r\n if (typeof symbol === 'object') cache = symbol;\r\n else cache = getDepthCache(symbol).asks;\r\n let sorted = Object.keys(cache).sort(function (a, b) {\r\n return parseFloat(a) - parseFloat(b);\r\n });\r\n let cumulative = 0;\r\n for (let price of sorted) {\r\n if (baseValue === 'cumulative') {\r\n cumulative += parseFloat(cache[price]);\r\n object[price] = cumulative;\r\n } else if (!baseValue) object[price] = parseFloat(cache[price]);\r\n else\r\n object[price] = parseFloat(\r\n (cache[price] * parseFloat(price)).toFixed(8)\r\n );\r\n if (++count >= max) break;\r\n }\r\n return object;\r\n };\r\n\r\n /**\r\n * Returns the first property of an object\r\n * @param {object} object - the object to get the first member\r\n * @return {string} - the object key\r\n */\r\n this.first = function (object) {\r\n return Object.keys(object).shift();\r\n };\r\n\r\n /**\r\n * Returns the last property of an object\r\n * @param {object} object - the object to get the first member\r\n * @return {string} - the object key\r\n */\r\n this.last = function (object) {\r\n return Object.keys(object).pop();\r\n };\r\n\r\n /**\r\n * Returns an array of properties starting at start\r\n * @param {object} object - the object to get the properties form\r\n * @param {int} start - the starting index\r\n * @return {array} - the array of entires\r\n */\r\n this.slice = function (object, start = 0) {\r\n return Object.entries(object)\r\n .slice(start)\r\n .map((entry) => entry[0]);\r\n };\r\n\r\n /**\r\n * Gets the minimum key form object\r\n * @param {object} object - the object to get the properties form\r\n * @return {string} - the minimum key\r\n */\r\n this.min = function (object) {\r\n return Math.min.apply(Math, Object.keys(object));\r\n };\r\n\r\n /**\r\n * Gets the maximum key form object\r\n * @param {object} object - the object to get the properties form\r\n * @return {string} - the minimum key\r\n */\r\n this.max = function (object) {\r\n return Math.max.apply(Math, Object.keys(object));\r\n };\r\n\r\n /**\r\n * Sets an option given a key and value\r\n * @param {string} key - the key to set\r\n * @param {object} value - the value of the key\r\n * @return {undefined}\r\n */\r\n this.setOption = function (key, value) {\r\n common.options[key] = value;\r\n };\r\n\r\n /**\r\n * Gets an option given a key\r\n * @param {string} key - the key to set\r\n * @return {undefined}\r\n */\r\n this.getOption = function (key) {\r\n return common.options[key];\r\n };\r\n\r\n /**\r\n * Returns the entire info object\r\n * @return {object} - the info object\r\n */\r\n this.getInfo = function () {\r\n return common.info;\r\n };\r\n\r\n /**\r\n * Returns the entire options object\r\n * @return {object} - the options object\r\n */\r\n this.getOptions = function () {\r\n return common.options;\r\n };\r\n\r\n /**\r\n * Tell api to use the server time to offset time indexes\r\n * @param {function} callback - the callback function\r\n * @return {promise or undefined} - omitting the callback returns a promise\r\n */\r\n this.useServerTime = (callback = false) => {\r\n const parser = (data) => {\r\n common.info.timeOffset = data.serverTime - Date.now();\r\n return data;\r\n };\r\n return publicRequest(\r\n common,\r\n common.base + 'v3/time',\r\n {},\r\n callback,\r\n false,\r\n parser\r\n );\r\n };\r\n\r\n /**\r\n * Convert chart data to highstock array [timestamp,open,high,low,close]\r\n * @param {object} chart - the chart\r\n * @param {boolean} include_volume - to include the volume or not\r\n * @return {array} - an array\r\n */\r\n this.highstock = function (chart, include_volume = false) {\r\n let array = [];\r\n for (let timestamp in chart) {\r\n let obj = chart[timestamp];\r\n let line = [\r\n Number(timestamp),\r\n parseFloat(obj.open),\r\n parseFloat(obj.high),\r\n parseFloat(obj.low),\r\n parseFloat(obj.close),\r\n ];\r\n if (include_volume) line.push(parseFloat(obj.volume));\r\n array.push(line);\r\n }\r\n return array;\r\n };\r\n\r\n /**\r\n * Populates OHLC information\r\n * @param {object} chart - the chart\r\n * @return {object} - object with candle information\r\n */\r\n this.ohlc = function (chart) {\r\n let open = [],\r\n high = [],\r\n low = [],\r\n close = [],\r\n volume = [];\r\n for (let timestamp in chart) {\r\n //common.ohlc[symbol][interval]\r\n let obj = chart[timestamp];\r\n open.push(parseFloat(obj.open));\r\n high.push(parseFloat(obj.high));\r\n low.push(parseFloat(obj.low));\r\n close.push(parseFloat(obj.close));\r\n volume.push(parseFloat(obj.volume));\r\n }\r\n return { open: open, high: high, low: low, close: close, volume: volume };\r\n };\r\n\r\n /**\r\n * Queries the public api\r\n * @param {string} url - the public api endpoint\r\n * @param {object} data - the data to send\r\n * @param {function} callback - the callback function\r\n * @param {string} method - the http method\r\n * @return {promise or undefined} - omitting the callback returns a promise\r\n */\r\n this.publicRequest = function (url, data, callback, method = 'GET') {\r\n if (!callback) {\r\n return new Promise((resolve, reject) => {\r\n callback = (error, response) => {\r\n if (error) {\r\n reject(error);\r\n } else {\r\n resolve(response);\r\n }\r\n };\r\n publicRequest(common, url, data, callback, method);\r\n });\r\n } else {\r\n publicRequest(common, url, data, callback, method);\r\n }\r\n };\r\n\r\n /**\r\n * Queries the futures API by default\r\n * @param {string} url - the signed api endpoint\r\n * @param {{APIKEY: string, APISECRET: string }} params - additional parameters\r\n * @param {object} flags - type of request, authentication method and endpoint url\r\n * @param {function} callback - the callback function\r\n * @return {?promise} returs promise if callback is not defined\r\n */\r\n this.promiseRequest = function (url, params = {}, flags = {}, callback) {\r\n return promiseRequest(common, url, params, flags, callback);\r\n };\r\n\r\n /**\r\n * Queries the signed api\r\n * @param {string} url - the signed api endpoint\r\n * @param {object} data - the data to send\r\n * @param {function} callback - the callback function\r\n * @param {string} method - the http method\r\n * @param {boolean} noDataInSignature - Prevents data from being added to signature\r\n * @return {?promise} returs promise if callback is not defined\r\n */\r\n this.signedRequest = function (\r\n url,\r\n data,\r\n callback,\r\n method = 'GET',\r\n noDataInSignature = false\r\n ) {\r\n return signedRequest(\r\n common,\r\n url,\r\n data,\r\n callback,\r\n pullKeys(data),\r\n false,\r\n method,\r\n noDataInSignature\r\n );\r\n };\r\n\r\n /**\r\n * Gets the market asset of given symbol\r\n * @param {string} symbol - the public api endpoint\r\n * @return {undefined}\r\n */\r\n this.getMarket = function (symbol) {\r\n if (symbol.endsWith('BTC')) return 'BTC';\r\n else if (symbol.endsWith('ETH')) return 'ETH';\r\n else if (symbol.endsWith('BNB')) return 'BNB';\r\n else if (symbol.endsWith('XRP')) return 'XRP';\r\n else if (symbol.endsWith('PAX')) return 'PAX';\r\n else if (symbol.endsWith('USDT')) return 'USDT';\r\n else if (symbol.endsWith('USDC')) return 'USDC';\r\n else if (symbol.endsWith('USDS')) return 'USDS';\r\n else if (symbol.endsWith('TUSD')) return 'TUSD';\r\n };\r\n\r\n /**\r\n * Get the account binance lending information\r\n * @param {object} params - additional params\r\n * @param {function} callback - the callback function\r\n * @return {promise or undefined} - omitting the callback returns a promise\r\n */\r\n this.lending = async (params = {}, callback) => {\r\n return promiseRequest(\r\n common,\r\n 'v1/lending/union/account',\r\n params,\r\n { base: common.sapi, type: 'SIGNED' },\r\n callback\r\n );\r\n };\r\n\r\n // futures websockets support: ticker bookTicker miniTicker aggTrade markPrice\r\n /* TODO: https://binance-docs.github.io/apidocs/futures/en/#change-log\r\n Cancel multiple orders DELETE /common.fapi/v1/batchOrders\r\n New Future Account Transfer POST https://api.binance.com/sapi/v1/futures/transfer\r\n Get Postion Margin Change History (TRADE)\r\n \r\n wss://fstream.binance.com/ws/\r\n Diff. Book Depth Streams (250ms, 100ms, or realtime): @depth OR @depth@100ms OR @depth@0ms\r\n Partial Book Depth Streams (5, 10, 20): @depth OR @depth@100ms\r\n All Market Liquidation Order Streams: !forceOrder@arr\r\n Liquidation Order Streams for specific symbol: @forceOrder\r\n Chart data (250ms): @kline_\r\n SUBSCRIBE, UNSUBSCRIBE, LIST_SUBSCRIPTIONS, SET_PROPERTY, GET_PROPERTY\r\n Live Subscribing/Unsubscribing to streams: requires sending futures subscription id when connecting\r\n futuresSubscriptions { \"method\": \"LIST_SUBSCRIPTIONS\", \"id\": 1 }\r\n futuresUnsubscribe { \"method\": \"UNSUBSCRIBE\", \"params\": [ \"btcusdt@depth\" ], \"id\": 1 }\r\n futures depthCache & complete realtime chart updates\r\n */\r\n};\r\n\r\nconst spot = require('./spot');\r\nconst futures = require('./futures');\r\nconst wapi = require('./wapi');\r\nconst margin = require('./margin');\r\nconst webSocket = require('./webSocket');\r\n\r\nfunction Binance(options = {}) {\r\n // if (!new.target) {\r\n // // Legacy support for calling the constructor without 'new'\r\n // return new Binance(common);\r\n // }\r\n const common = createCommon();\r\n\r\n if (options) setOptions(options, common);\r\n\r\n const returnThis = {\r\n // /**\r\n // * Gets an option given a key\r\n // * @param {object} opt - the object with the class configuration\r\n // * @param {function} callback - the callback function\r\n // * @return {undefined}\r\n // */\r\n options: (opt, callback) =>\r\n setOptions.bind(returnThis)(opt, common, callback),\r\n ...new main(common),\r\n spot: new spot(common),\r\n futures: new futures(common),\r\n wapi: new wapi(common),\r\n margin: new margin(common),\r\n webSocket: new webSocket(common),\r\n common,\r\n };\r\n\r\n return returnThis;\r\n}\r\nmodule.exports = Binance;\r\n//https://github.com/binance-exchange/binance-official-api-docs\r\n\r\n//error codes : https://github.com/binance-exchange/binance-official-api-docs/blob/master/errors.md\r\n"]}