Go SDK for KuCoin API

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

Install

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

Usage

Choose environment

Environment	BaseUri
Production	https://api.kucoin.com(DEFAULT) https://api.kucoin.cc
Sandbox	https://openapi-sandbox.kucoin.com

Create ApiService

Note

To reinforce the security of the APIS, KuCoin upgraded the API key to version 2.0, the validation logic has also been changed. It is recommended to create(https://www.kucoin.com/account/api) and update your API key to version 2.0. The API key of version 1.0 will be still valid until May 1, 2021.

// API key version 2.0
s :=  kucoin.NewApiService( 
	// kucoin.ApiBaseURIOption("https://api.kucoin.com"), 
	kucoin.ApiKeyOption("key"),
	kucoin.ApiSecretOption("secret"),
	kucoin.ApiPassPhraseOption("passphrase"),
	kucoin.ApiKeyVersionOption(ApiKeyVersionV2)
)

// API key version 1.0
s := kucoin.NewApiService( 
	// kucoin.ApiBaseURIOption("https://api.kucoin.com"), 
	kucoin.ApiKeyOption("key"),
	kucoin.ApiSecretOption("secret"),
	kucoin.ApiPassPhraseOption("passphrase"), 
)
// Or add these options into the environmental variable
// Bash: 
// export API_BASE_URI=https://api.kucoin.com
// export API_KEY=key
// export API_SECRET=secret
// export API_PASSPHRASE=passphrase
// export API_KEY_VERSION=2
// 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"
kucoin.DebugMode = true
// Or export API_DEBUG_MODE=1

// Logging in your code
// kucoin.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.Accounts("", "")
if err != nil {
    // Handle error
    return
}

as := kucoin.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{}, &kucoin.PaginationParam{CurrentPage: 1, PageSize: 10})
if err != nil {
    // Handle error
    return
}

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

c := s.NewWebSocketClient(tk)

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

ch1 := kucoin.NewSubscribeMessage("/market/ticker:KCS-BTC", false)
ch2 := kucoin.NewSubscribeMessage("/market/ticker:ETH-BTC", false)
uch := kucoin.NewUnsubscribeMessage("/market/ticker:ETH-BTC", 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", kucoin.ToJsonString(m))
        t := &kucoin.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 ETH-BTC")
            if err = c.Unsubscribe(uch); err != nil {
                log.Printf("Error: %s", err.Error())
                // Handle error
                return
            }
        }
        if i == 10 {
            log.Println("Subscribe ETH-BTC")
            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

Trade Fee

API	Authentication	Description
ApiService.BaseFee()	YES	https://docs.kucoin.com/#basic-user-fee
ApiService.ActualFee()	YES	https://docs.kucoin.com/#actual-fee-rate-of-the-trading-pair

Stop Order

API	Authentication	Description
ApiService.CreateStopOrder()	YES	https://docs.kucoin.com/#place-a-new-order-2
ApiService.CancelStopOrder()	YES	https://docs.kucoin.com/#cancel-an-order-2
ApiService.CancelStopOrderBy()	YES	https://docs.kucoin.com/#cancel-orders
ApiService.StopOrder()	YES	https://docs.kucoin.com/#get-single-order-info
ApiService.StopOrders()	YES	https://docs.kucoin.com/#list-stop-orders
ApiService.StopOrderByClient()	YES	https://docs.kucoin.com/#get-single-order-by-clientoid
ApiService.CancelStopOrderByClient()	YES	https://docs.kucoin.com/#cancel-single-order-by-clientoid-2

Account

API	Authentication	Description
ApiService.CreateAccount()	YES	https://docs.kucoin.com/#create-an-account
ApiService.Accounts()	YES	https://docs.kucoin.com/#list-accounts
ApiService.Account()	YES	https://docs.kucoin.com/#get-an-account
ApiService.SubAccountUsers()	YES	https://docs.kucoin.com/#get-user-info-of-all-sub-accounts
ApiService.SubAccounts()	YES	https://docs.kucoin.com/#get-the-aggregated-balance-of-all-sub-accounts-of-the-current-user
ApiService.SubAccount()	YES	https://docs.kucoin.com/#get-account-balance-of-a-sub-account
ApiService.AccountLedgers()	YES	DEPRECATED https://docs.kucoin.com/#get-account-ledgers-deprecated
ApiService.AccountHolds()	YES	https://docs.kucoin.com/#get-holds
ApiService.InnerTransfer()	YES	DEPRECATED https://docs.kucoin.com/#inner-transfer
ApiService.InnerTransferV2()	YES	https://docs.kucoin.com/#inner-transfer
ApiService.SubTransfer()	YES	DEPRECATED
ApiService.SubTransferV2()	YES	https://docs.kucoin.com/#transfer-between-master-user-and-sub-user
ApiService.AccountLedgersV2()	YES	https://docs.kucoin.com/#get-account-ledgers

Deposit

API	Authentication	Description
ApiService.CreateDepositAddress()	YES	https://docs.kucoin.com/#create-deposit-address
ApiService.DepositAddresses()	YES	https://docs.kucoin.com/#get-deposit-address
ApiService.V1Deposits()	YES	https://docs.kucoin.com/#get-v1-historical-deposits-list
ApiService.Deposits()	YES	https://docs.kucoin.com/#get-deposit-list

Fill

API	Authentication	Description
ApiService.Fills()	YES	https://docs.kucoin.com/#list-fills
ApiService.RecentFills()	YES	https://docs.kucoin.com/#recent-fills

Order

API	Authentication	Description
ApiService.CreateOrder()	YES	https://docs.kucoin.com/#place-a-new-order
ApiService.CreateMultiOrder()	YES	https://docs.kucoin.com/#place-bulk-orders
ApiService.CancelOrder()	YES	https://docs.kucoin.com/#cancel-an-order
ApiService.CancelOrders()	YES	https://docs.kucoin.com/#cancel-all-orders
ApiService.V1Orders()	YES	https://docs.kucoin.com/#get-v1-historical-orders-list
ApiService.Orders()	YES	https://docs.kucoin.com/#list-orders
ApiService.Order()	YES	https://docs.kucoin.com/#get-an-order
ApiService.RecentOrders()	YES	https://docs.kucoin.com/#recent-orders
ApiService.CreateMarginOrder()	YES	https://docs.kucoin.com/#place-a-margin-order
ApiService.CancelOrderByClient()	YES	https://docs.kucoin.com/#cancel-single-order-by-clientoid
ApiService.OrderByClient()	YES	https://docs.kucoin.com/#get-single-active-order-by-clientoid

WebSocket Feed

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

Withdrawal

API	Authentication	Description
ApiService.WithdrawalQuotas()	YES	https://docs.kucoin.com/#get-withdrawal-quotas
ApiService.V1Withdrawals()	YES	https://docs.kucoin.com/#get-v1-historical-withdrawals-list
ApiService.Withdrawals()	YES	https://docs.kucoin.com/#get-withdrawals-list
ApiService.ApplyWithdrawal()	YES	https://docs.kucoin.com/#apply-withdraw
ApiService.CancelWithdrawal()	YES	https://docs.kucoin.com/#cancel-withdrawal

Currency

API	Authentication	Description
ApiService.Currencies()	NO	https://docs.kucoin.com/#get-currencies
ApiService.Currency()	NO	https://docs.kucoin.com/#get-currency-detail
ApiService.Prices()	NO	https://docs.kucoin.com/#get-fiat-price

Symbol

API	Authentication	Description
ApiService.Symbols()	NO	https://docs.kucoin.com/#get-symbols-list
ApiService.TickerLevel1()	NO	https://docs.kucoin.com/#get-ticker
ApiService.Tickers()	NO	https://docs.kucoin.com/#get-all-tickers
ApiService.AggregatedPartOrderBook()	NO	https://docs.kucoin.com/#get-part-order-book-aggregated
ApiService.AggregatedFullOrderBook()	NO	https://docs.kucoin.com/#get-full-order-book-aggregated
ApiService.AtomicFullOrderBook()	NO	https://docs.kucoin.com/#get-full-order-book-atomic
ApiService.TradeHistories()	NO	https://docs.kucoin.com/#get-trade-histories
ApiService.KLines()	NO	https://docs.kucoin.com/#get-klines
ApiService.Stats24hr()	NO	https://docs.kucoin.com/#get-24hr-stats
ApiService.Markets()	NO	https://docs.kucoin.com/#get-market-list

Time

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

Service Status

API	Authentication	Description
ApiService.ServiceStatus()	NO	https://docs.kucoin.com/#service-status

Run tests

# Add your API configuration items into the environmental variable first
export API_BASE_URI=https://api.kucoin.com
export API_KEY=key
export API_SECRET=secret
export API_PASSPHRASE=passphrase
export API_KEY_VERSION=2

# Run tests
go test -v

License

MIT