README.md

LongPort OpenAPI SDK for Java

longport provides an easy-to-use interface for invokes LongPort OpenAPI.

Quickstart

Install LongPort OpenAPI SDK

Add io.github.longportapp:openapi-sdk to pom.xml

<dependencies>
    <dependency>
        <groupId>io.github.longportapp</groupId>
        <artifactId>openapi-sdk</artifactId>
        <version>LATEST</version>
    </dependency>
</dependencies>

Setting environment variables(MacOS/Linux)

export LONGPORT_APP_KEY="App Key get from user center"
export LONGPORT_APP_SECRET="App Secret get from user center"
export LONGPORT_ACCESS_TOKEN="Access Token get from user center"

Setting environment variables(Windows)

setx LONGPORT_APP_KEY "App Key get from user center"
setx LONGPORT_APP_SECRET "App Secret get from user center"
setx LONGPORT_ACCESS_TOKEN "Access Token get from user center"

Quote API (Get basic information of securities)

import com.longport.*;
import com.longport.quote.*;
import java.math.BigDecimal;

class Main {
    public static void main(String[] args) throws Exception {
        try (Config config = Config.fromEnv(); QuoteContext ctx = QuoteContext.create(config).get()) {
            SecurityQuote[] resp = ctx.getQuote(new String[] { "700.HK", "AAPL.US", "TSLA.US", "NFLX.US" }).get();
            for (SecurityQuote obj : resp) {
                System.out.println(obj);
            }
        }
    }
}

Quote API (Subscribe quotes)

import com.longport.*;
import com.longport.quote.*;

class Main {
    public static void main(String[] args) throws Exception {
        try (Config config = Config.fromEnv(); QuoteContext ctx = QuoteContext.create(config).get()) {
            ctx.setOnQuote((symbol, quote) -> {
                System.out.printf("%s\t%s\n", symbol, quote);
            });
            ctx.subscribe(new String[] { "700.HK", "AAPL.US", "TSLA.US", "NFLX.US" }, SubFlags.Quote, true).get();
            Thread.sleep(30000);
        }
    }
}

Trade API (Submit order)

import com.longport.*;
import com.longport.trade.*;
import java.math.BigDecimal;

public class Main {
    public static void main(String[] args) throws Exception {
        try (Config config = Config.fromEnv(); TradeContext ctx = TradeContext.create(config).get()) {
            SubmitOrderOptions opts = new SubmitOrderOptions("700.HK",
                    OrderType.LO,
                    OrderSide.Buy,
                    200,
                    TimeInForceType.Day).setSubmittedPrice(new BigDecimal(50));
            SubmitOrderResponse resp = ctx.submitOrder(opts).get();
            System.out.println(resp);
        }
    }
}

License

Licensed under either of

• Apache License, Version 2.0,(LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.