JAVA SDK for KuCoin API

The detailed document https://docs.kucoin.com.

Installation

1. Install library into your Maven's local repository by running mvn clean install
2. Add the following Maven dependency to your project's pom.xml:

<dependency>
    <groupId>com.kucoin</groupId>
    <artifactId>kucoin-java-sdk</artifactId>
    <version>1.0.11</version>
</dependency>

Usage

Build Client

KucoinClientBuilder builder = new KucoinClientBuilder().withBaseUrl("https://openapi-v2.kucoin.com").withApiKey("YOUR_API_KEY", "YOUR_SECRET", "YOUR_PASS_PHRASE");
KucoinRestClient kucoinRestClient = builder.buildRestClient();
KucoinPrivateWSClient kucoinPrivateWSClient = builder.buildPrivateWSClient();
KucoinPublicWSClient kucoinPublicWSClient = builder.buildPublicWSClient();

You can use withBaseUrl method to change evironment.

Environment	BaseUri
Production DEFAULT	https://openapi-v2.kucoin.com

If you only need to use the public web socket client or REST client public method, you can igonre withApiKey method. To customize your own API implementation, you may use the with*API method we provided for you.

Example

REST API

User

You need to sign the request to use the private user API.

Accounts

kucoinRestClient.accountAPI().listAccounts(currency, type);
kucoinRestClient.accountAPI().getAccount(mainAccountId);
kucoinRestClient.accountAPI().getAccountHistory(mainAccountId, startAt, endAt, pageNo, pageSize);
kucoinRestClient.accountAPI().innerTransfer(clientOid, fromAccountId, size, toAccountId);
kucoinRestClient.accountAPI().createAccount(currency, type);             

Deposits

kucoinRestClient.depositAPI().createDepositAddress(currency);
kucoinRestClient.depositAPI().getDepositAddress(currency);
kucoinRestClient.depositAPI().getDepositPageList(currency, startAt, endAt, status, pageNo, pageSize);

Withdrawals

kucoinRestClient.withdrawalAPI().getWithdrawList(currency, status, startAt, endAt, pageNo, pageSize);
kucoinRestClient.withdrawalAPI().getWithdrawQuotas(currency);
WithdrawApplyRequest withdrawApplyRequest = WithdrawApplyRequest.builder().address("address")
                .amount(BigDecimal.valueOf(amount)).currency("currency").build();
kucoinRestClient.withdrawalAPI().applyWithdraw(withdrawApplyRequest);
kucoinRestClient.withdrawalAPI().cancelWithdraw(withdrawalId);

Trade

You need to sign the request to use the private trade API.

Orders

OrderCreateApiRequest request = OrderCreateApiRequest.builder()
                .price(BigDecimal.valueOf(price)).size(BigDecimal.ONE).side("buy")
                .symbol("ETH-BTC").type("limit").clientOid(UUID.randomUUID().toString()).build();
kucoinRestClient.orderAPI().createOrder(request);
kucoinRestClient.orderAPI().listOrders(symbol, side, type, status, startAt, endAt, pageNo, pageSize);
kucoinRestClient.orderAPI().getOrder(orderId);
kucoinRestClient.orderAPI().cancelOrder(orderId);
kucoinRestClient.orderAPI().cancelAllOrders(symbol);

Fills

kucoinRestClient.fillAPI().listFills(symbol, orderId, side, type, startAt, endAt, pageNo, pageSize);

Market Date

Market data is public and can be used without a signed request.

Symbols & Ticker

kucoinRestClient.symbolAPI().getTicker(symbol);
kucoinRestClient.symbolAPI().getSymbols();
kucoinRestClient.symbolAPI().getAllTickers();
kucoinRestClient.symbolAPI().get24hrStats(symbol);
kucoinRestClient.symbolAPI().getMarketList();

Order Book

kucoinRestClient.orderBookAPI().getFullOrderBookAggregated(symbol);
kucoinRestClient.orderBookAPI().getFullOrderBookAtomic(symbol);
kucoinRestClient.orderBookAPI().getPartOrderBookAggregated(symbol);

Histories

kucoinRestClient.historyAPI().getTradeHistories(symbol)
kucoinRestClient.historyAPI().getHistoricRates(symbol, startAt, endAt, type);

Currencies

kucoinRestClient.currencyAPI().getCurrencies();
kucoinRestClient.currencyAPI().getCurrencyDetail(currency);
kucoinRestClient.currencyAPI().getFiatPrice(base, currencies);

Time

kucoinRestClient.timeAPI().getServerTimeStamp();

Websocket Feed

Use KucoinClientBuilder to build an instance of the websocket client. Private channel client need to pass the API Key + Secret + Pass Phreas.

The Websocket client uses ChooseServerStrategy to choose server for connection. If you don't plan to use builder.withChooseServerStrategy to set your own strategy, you may use the strategy we provided by random.

Ping

wsClient.ping(requestId)

Unsubscribe

wsClient.unsubscribe(channelEnum, symbols);

Close Client

wsClient.close();

Public Channels

Listen for changes to the order boock for ETH-BTC and KCS-BTC

kucoinPublicWSClient.onTicker(response -> {
            System.out.println(response);
        }, "ETH-BTC", "KCS-BTC");
kucoinPublicWSClient.onLevel2Data(response -> {
            System.out.println(response);
        }, "ETH-BTC", "KCS-BTC");
kucoinPublicWSClient.onMatchExecutionData(response -> {
            System.out.println(response);
        });
kucoinPublicWSClient.onLevel3Data(response -> {
            System.out.println(response);
        }, "ETH-BTC", "KCS-BTC");

Private Channels

Listen for account balance changes

kucoinPrivateWSClient.onAccountBalance(response -> {
            System.out.println(response);
        });

Listen for order activate message

kucoinPrivateWSClient.onOrderActivate(response -> {
            System.out.println(response);
        }, "ETH-BTC", "KCS-BTC");

Testing

To contribute code or modify the library, you may enter the following command to run the test suite:

mvn clean test

License

MIT