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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.

Latest Version GoDoc Build Status Go Report Card Sourcegraph

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 API, 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