Go SDK for KuMex API

The detailed document https://docs.kumex.com, in order to receive the latest API change notifications, please Watch this repository.

Install

go get github.com/Kucoin/kumex-go-sdk

Usage

Choose environment

Environment	BaseUri
Production	https://api.kumex.com(DEFAULT) https://api.kumex.top
Sandbox	https://sandbox-api.kumex.com

Create ApiService

s := kumex.NewApiService( 
	// kumex.ApiBaseURIOption("https://api.kumex.com"), 
	kumex.ApiKeyOption("key"),
	kumex.ApiSecretOption("secret"),
	kumex.ApiPassPhraseOption("passphrase"),
)

// Or add these options into the environmental variable
// Bash: 
// export API_BASE_URI=https://api.kumex.com
// export API_KEY=key
// export API_SECRET=secret
// export API_PASSPHRASE=passphrase
// s := NewApiServiceFromEnv()

Debug mode & logging

// Require package github.com/sirupsen/logrus
// Debug mode will record the logs of API and WebSocket to files.
// Default values: LogLevel=logrus.DebugLevel, LogDirectory="/tmp"
kumex.DebugMode = true
// Or export API_DEBUG_MODE=1

// Logging in your code
// kumex.SetLoggerDirectory("/tmp")
// logrus.SetLevel(logrus.DebugLevel)
logrus.Debugln("I'm a debug message")

Examples

See the test case for more examples.

Example of API without authentication

rsp, err := s.ServerTime()
if err != nil {
    log.Printf("Error: %s", err.Error())
    // Handle error
    return
}

var ts int64
if err := rsp.ReadData(&ts); err != nil {
    // Handle error
    return
}
log.Printf("The server time: %d", ts)

Example of API with authentication

// Without pagination
rsp, err := s.AccountOverview()
if err != nil {
    // Handle error
    return
}

as := kumex.AccountsModel{}
if err := rsp.ReadData(&as); err != nil {
    // Handle error
    return
}

for _, a := range as {
    log.Printf("Available balance: %s %s => %s", a.Type, a.Currency, a.Available)
}

// Handle pagination
rsp, err := s.Orders(map[string]string{}, &kumex.PaginationParam{CurrentPage: 1, PageSize: 10})
if err != nil {
    // Handle error
    return
}

os := kumex.OrdersModel{}
pa, err := rsp.ReadPaginationData(&os)
if err != nil {
    // Handle error
    return
}
log.Printf("Total num: %d, total page: %d", pa.TotalNum, pa.TotalPage)
for _, o := range os {
    log.Printf("Order: %s, %s, %s", o.Id, o.Type, o.Price)
}

Example of WebSocket feed

Require package gorilla/websocket

go get github.com/gorilla/websocket github.com/pkg/errors

rsp, err := s.WebSocketPublicToken()
if err != nil {
    // Handle error
    return
}

tk := &kumex.WebSocketTokenModel{}
if err := rsp.ReadData(tk); err != nil {
    // Handle error
    return
}

c := s.NewWebSocketClient(tk)
// c.AcceptUserMessage = true 


mc, ec, err := c.Connect()
if err != nil {
    // Handle error
    return
}

ch1 := kumex.NewSubscribeMessage("/contractMarket/ticker:XBTUSDM", false)
ch2 := kumex.NewSubscribeMessage("/contractMarket/ticker:XBTUSDM", false)
uch := kumex.NewUnsubscribeMessage("/contractMarket/ticker:XBTUSDM", false)

if err := c.Subscribe(ch1, ch2); err != nil {
    // Handle error
    return
}

var i = 0
for {
    select {
    case err := <-ec:
        c.Stop() // Stop subscribing the WebSocket feed
        log.Printf("Error: %s", err.Error())
        // Handle error
        return
    case msg := <-mc:
        // log.Printf("Received: %s", kumex.ToJsonString(m))
        t := &kumex.TickerLevel1Model{}
        if err := msg.ReadData(t); err != nil {
            log.Printf("Failure to read: %s", err.Error())
            return
        }
        log.Printf("Ticker: %s, %s, %s, %s", msg.Topic, t.Sequence, t.Price, t.Size)
        i++
        if i == 5 {
            log.Println("Unsubscribe XBTUSDM")
            if err = c.Unsubscribe(uch); err != nil {
                log.Printf("Error: %s", err.Error())
                // Handle error
                return
            }
        }
        if i == 10 {
            log.Println("Subscribe XBTUSDM")
            if err = c.Subscribe(ch2); err != nil {
                log.Printf("Error: %s", err.Error())
                // Handle error
                return
            }
        }
        if i == 15 {
            log.Println("Exit subscription")
            c.Stop() // Stop subscribing the WebSocket feed
            return
        }
    }
}

API list

Account

API	Authentication	Description
ApiService.AccountOverview()	YES	https://docs.kumex.com/#get-account-overview
ApiService.TransactionHistory()	YES	https://docs.kumex.com/#get-transaction-history

Deposit

API	Authentication	Description
ApiService.DepositAddresses()	YES	https://docs.kumex.com/#get-deposit-address
ApiService.Deposits()	YES	https://docs.kumex.com/#get-deposit-list

Withdrawal

API	Authentication	Description
ApiService.WithdrawalQuotas()	YES	https://docs.kumex.com/#get-withdrawal-quotas
ApiService.ApplyWithdrawal()	YES	https://docs.kumex.com/#apply-withdraw
ApiService.Withdrawals()	YES	https://docs.kumex.com/#get-withdrawals-list
ApiService.CancelWithdrawal()	YES	https://docs.kumex.com/#cancel-withdrawal

Transfer

API	Authentication	Description
ApiService.TransferOut()	YES	https://docs.kumex.com/#transfer-out
ApiService.TransferOutV2()	YES	https://docs.kumex.com/#transfer-funds-to-kucoin-main-account
ApiService.TransferList()	YES	https://docs.kumex.com/#get-transfer-list
ApiService.CancelTransfer()	YES	https://docs.kumex.com/#cancel-transfer

Fill

API	Authentication	Description
ApiService.Fills()	YES	https://docs.kumex.com/#list-fills
ApiService.RecentFills()	YES	https://docs.kumex.com/#recent-fills
ApiService.openOrderStatistics()	YES	https://docs.kumex.com/#open-order-statistics

Order

API	Authentication	Description
ApiService.CreateOrder()	YES	https://docs.kumex.com/#place-a-new-order
ApiService.CancelOrder()	YES	https://docs.kumex.com/#cancel-an-order
ApiService.CancelOrders()	YES	https://docs.kumex.com/#cancel-all-orders
ApiService.StopOrders()	YES	https://docs.kumex.com/#get-untriggered-stop-order-list
ApiService.Orders()	YES	https://docs.kumex.com/#list-orders
ApiService.Order()	YES	https://docs.kumex.com/#get-an-order
ApiService.RecentOrders()	YES	https://docs.kumex.com/#recent-orders

Market

API	Authentication	Description
ApiService.Ticker()	NO	https://docs.kumex.com/#get-real-time-ticker
ApiService.Level2Snapshot()	NO	https://docs.kumex.com/#get-full-order-book-level-2
ApiService.Level2MessageQuery()()	NO	https://docs.kumex.com/#level-2-pulling-messages
ApiService.Level3Snapshot()	NO	https://docs.kumex.com/#get-full-order-book-level-3
ApiService.Level3MessageQuery()	NO	https://docs.kumex.com/#level-3-pulling-messages
ApiService.TradeHistory()	NO	https://docs.kumex.com/#transaction-history
ApiService.InterestQuery()	NO	https://docs.kumex.com/#get-interest-rate-list
ApiService.IndexQuery()	NO	https://docs.kumex.com/#get-index-list
ApiService.MarkPrice()	NO	https://docs.kumex.com/#get-current-mark-price
ApiService.PremiumQuery()	NO	https://docs.kumex.com/#get-premium-index
ApiService.FundingRate()	NO	https://docs.kumex.com/#get-current-funding-rate

Symbol

API	Authentication	Description
ApiService.ActiveContracts()	NO	https://docs.kumex.com/#get-open-contract-list
ApiService.Contracts()	NO	https://docs.kumex.com/#get-order-info-of-the-contract

WebSocket Feed

API	Authentication	Description
ApiService.WebSocketPublicToken()	NO	https://docs.kumex.com/#apply-connect-token
ApiService.WebSocketPrivateToken()	YES	https://docs.kumex.com/#apply-connect-token
ApiService.NewWebSocketClient()	-	https://docs.kumex.com/#websocket-feed

Time

API	Authentication	Description
ApiService.ServerTime()	NO	https://docs.kumex.com/#server-time

Run tests

# Add your API configuration items into the environmental variable first
export API_BASE_URI=https://api.kumex.com
export API_KEY=key
export API_SECRET=secret
export API_PASSPHRASE=passphrase

# Run tests
go test -v

License

MIT