Đây.Khách hàngHợp tácTrung tâm hành chínhsử dụng
REST và Websocket được sử dụng để truy cập vào các trường hợp, và Websocket bị ngắt kết nối do một số yếu tố không thể cưỡng lại, khi đó cần phải có một cơ chế chịu lỗi. REST thường là cách an toàn nhất. Khi bạn có nhiều chính sách chạy trên cùng một nền tảng, chẳng hạn như OKEx, và nhiều chính sách trên cùng một máy chủ, truy cập vào REST API có giới hạn tần số (xem tài liệu API nền tảng để biết chi tiết), có nhiều cách để hạn chế, chẳng hạn như hạn chế IP, hạn chế tài khoản hoặc kết hợp cả hai). Sử dụng trung tâm tình huống để giảm tần suất yêu cầu REST


// a client for market center, https://github.com/goex-top/market_center
// api list
// * GetSupportList
// * SubscribeSpotTicker
// * SubscribeSpotDepth
// * ~~SubscribeSpotTrade~~
// * GetSpotTicker
// * GetSpotDepth
// * ~~GetSpotTrade~~
// * SubscribeFutureTicker
// * SubscribeFutureDepth
// * ~~SubscribeFutureTrade~~
// * GetFutureTicker
// * GetFutureDepth
// * ~~GetFutureTrade~~
// params wit web
// var udspath = /tmp/goex.market.center //ref to https://github.com/goex-top/market_center/blob/1e1bb15c69a1da6fddbba3d506920e91f9ec7842/const.go#L35
// local variable
// var client = null
var ReqType = {
ReqType_GetSupportList: 1,
ReqType_SubscribeSpotDepth: 2,
ReqType_SubscribeSpotTicker: 3,
ReqType_SubscribeFutureDepth: 4,
ReqType_SubscribeFutureTicker: 5,
ReqType_GetSpotDepth: 6,
ReqType_GetSpotTicker: 7,
ReqType_GetFutureDepth: 8,
ReqType_GetFutureTicker: 9,
}
//---------------------------------------
function newUDSClient() {
var client = Dial('unix://'+udspath)
if (null === client) {
throw 'new usd client fail'
}
return client
}
function udsRequest(client, req) {
try {
client.write(JSON.stringify(req))
var rsp = client.read(20)
if (rsp === null) {
return null
}
var obj = JSON.parse(rsp)
if(obj.status !== 0) {
return null
}
return obj.data
}
catch(e) {
return null
}
}
function GetSupportList(client) {
var req = {type:ReqType.ReqType_GetSupportList}
var rsp = udsRequest(client, req)
if (rsp === null) {
return null
}
return rsp
}
function GetSpotDepth(client, exchangeName, pair) {
var req = {type:ReqType.ReqType_GetSpotDepth, exchange_name: exchangeName, currency_pair: pair}
var rsp = udsRequest(client, req)
if(rsp === null) {
return null
}
return {Asks:rsp.AskList, Bids:rsp.BidList, Time:rsp.UTime, Info:rsp.rsp}
}
function GetSpotTicker(client, exchangeName, pair) {
var req = {type:ReqType.ReqType_GetSpotTicker, exchange_name: exchangeName, currency_pair: pair}
var rsp = udsRequest(client, req)
if(rsp === null) {
return null
}
return {
Last:parseFloat(rsp.last),
Buy:parseFloat(rsp.buy),
Sell:parseFloat(rsp.sell),
Volume:parseFloat(rsp.vol),
Time:parseFloat(rsp.date),
High:parseFloat(rsp.high),
Low:parseFloat(rsp.low),
Info:rsp
}
}
function SubscribeSpotDepth(client, exchangeName, pair, period) {
var req = {type:ReqType.ReqType_SubscribeSpotDepth, exchange_name: exchangeName, currency_pair: pair, period: period}
var rsp = udsRequest(client, req)
return rsp
}
function SubscribeSpotTicker(client, exchangeName, pair, period) {
var req = {type:ReqType.ReqType_SubscribeSpotTicker, exchange_name: exchangeName, currency_pair: pair, period: period}
var rsp = udsRequest(client, req)
return rsp
}
function GetFutureDepth(client, exchangeName, contractType, pair) {
var req = {type:ReqType.ReqType_GetFutureDepth, exchange_name: exchangeName, contract_type: contractType, currency_pair: pair}
var rsp = udsRequest(client, req)
if(rsp === null) {
return null
}
return {Asks:rsp.AskList, Bids:rsp.BidList, Time:rsp.UTime, Info:rsp.rsp}
}
function GetFutureTicker(client, exchangeName, contractType, pair) {
var req = {type:ReqType.ReqType_GetFutureTicker, exchange_name: exchangeName, contract_type: contractType, currency_pair: pair}
var rsp = udsRequest(client, req)
if(rsp === null) {
return null
}
return {
Last:parseFloat(rsp.last),
Buy:parseFloat(rsp.buy),
Sell:parseFloat(rsp.sell),
Volume:parseFloat(rsp.vol),
Time:parseFloat(rsp.date),
High:parseFloat(rsp.high),
Low:parseFloat(rsp.low),
Info:rsp
}
}
function SubscribeFutureDepth(client, exchangeName, contractType, pair, period) {
var req = {type:ReqType.ReqType_SubscribeFutureDepth, exchange_name: exchangeName, contract_type: contractType, currency_pair: pair, period: period}
var rsp = udsRequest(client, req)
return rsp
}
function SubscribeFutureTicker(client, exchangeName, contractType, pair, period) {
var req = {type:ReqType.ReqType_SubscribeFutureTicker, exchange_name: exchangeName, contract_type: contractType, currency_pair: pair, period: period}
var rsp = udsRequest(client, req)
return rsp
}
var MarketCenterClient = (function() {
function MarketCenterClient() {
if (typeof udspath === 'undefined' || udspath === '') {
throw 'udspath not defined'
}
this.client = newUDSClient()
this.list = GetSupportList(this.client)
Log("this.list:" + this.list)
}
MarketCenterClient.prototype.GetSpotTicker = function(exchangeName, pair) {
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'GetSpotTicker exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'GetSpotTicker pair not defined'
}
return GetSpotTicker(this.client, exchangeName, pair)
}
MarketCenterClient.prototype.GetSpotDepth = function(exchangeName, pair) {
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'GetSpotDepth exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'GetSpotDepth pair not defined'
}
return GetSpotDepth(this.client, exchangeName, pair)
}
MarketCenterClient.prototype.SubscribeSpotDepth = function(exchangeName, pair, period) {
if(typeof(period) === 'undefined') {
period = 200
}
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'SubscribeSpotDepth exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'SubscribeSpotDepth pair not defined'
}
var found = false
_.each(this.list, function(item) {
if (item === exchangeName) {
found = true
return false
}
})
if(!found) {
throw 'exchange ('+ exchangeName +') not support, please check it again, https://github.com/goex-top/market_center#support-exchanges'
}
return SubscribeSpotDepth(this.client, exchangeName, pair, period)
}
MarketCenterClient.prototype.SubscribeSpotTicker = function(exchangeName, pair, period) {
if(typeof(period) === 'undefined') {
period = 200
}
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'SubscribeSpotTicker exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'SubscribeSpotTicker pair not defined'
}
var found = false
_.each(this.list, function(item) {
if (item === exchangeName) {
found = true
return false
}
})
if(!found) {
throw 'exchange ('+ exchangeName +') not support, please check it again, https://github.com/goex-top/market_center#support-exchanges'
}
return SubscribeSpotTicker(this.client, exchangeName, pair, period)
}
MarketCenterClient.prototype.GetFutureTicker = function(exchangeName, contractType, pair) {
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'GetFutureTicker exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'GetFutureTicker pair not defined'
}
return GetFutureTicker(this.client, exchangeName, contractType, pair)
}
MarketCenterClient.prototype.GetFutureDepth = function(exchangeName, contractType, pair) {
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'GetFutureDepth exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'GetFutureDepth pair not defined'
}
return GetFutureDepth(this.client, exchangeName, contractType, pair)
}
MarketCenterClient.prototype.SubscribeFutureDepth = function(exchangeName, contractType, pair, period) {
if(typeof(period) === 'undefined') {
period = 200
}
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'SubscribeFutureDepth exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'SubscribeFutureDepth pair not defined'
}
var found = false
_.each(this.list, function(item) {
if (item === exchangeName) {
found = true
return false
}
})
if(!found) {
throw 'exchange ('+ exchangeName +') not support, please check it again, https://github.com/goex-top/market_center#support-exchanges'
}
return SubscribeFutureDepth(this.client, exchangeName, contractType, pair, period)
}
MarketCenterClient.prototype.SubscribeFutureTicker = function(exchangeName, contractType, pair, period) {
if(typeof(period) === 'undefined') {
period = 200
}
if (typeof exchangeName === 'undefined' || exchangeName === '') {
throw 'SubscribeFutureTicker exchangeName not defined'
}
if (typeof pair === 'undefined' || pair === '') {
throw 'SubscribeFutureTicker pair not defined'
}
var found = false
_.each(this.list, function(item) {
if (item === exchangeName) {
found = true
return false
}
})
if(!found) {
throw 'exchange ('+ exchangeName +') not support, please check it again, https://github.com/goex-top/market_center#support-exchanges'
}
return SubscribeFutureTicker(this.client, exchangeName, contractType, pair, period)
}
MarketCenterClient.prototype.GetSupportList = function() {
return GetSupportList(this.client)
}
return MarketCenterClient
})()
$.NewMarketCenterClient = function() {
return new MarketCenterClient()
}
function main() {
mcc = $.NewMarketCenterClient()
Log('support list'+mcc.GetSupportList())
mcc.SubscribeSpotDepth('binance.com', 'BTC_USDT', 200)
Sleep(1000)
Log(mcc.GetSpotDepth('binance.com', 'BTC_USDT'))
mcc.SubscribeSpotTicker('binance.com', 'BTC_USDT', 200)
Sleep(1000)
Log(mcc.GetSpotTicker('binance.com', 'BTC_USDT'))
}