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feature: add new exchange 'Korbot Ex'
'Korbot EX' based on OKEX. Has the same api as okex v3.
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‎.circleci/config.yml

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@@ -38,4 +38,4 @@ jobs:
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- run: gradle ktlint test codeCoverageReport
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- codecov/upload:
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file: build/reports/jacoco/report.xml
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token: dc59b779-b8a0-4f1c-ba53-35f1550ac5cc
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token: dc59b779-b8a0-4f1c-ba53-35f1550ac5cc

‎README.md

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@@ -36,6 +36,7 @@ Support public market feature (tickData, orderBook)
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| ![coineal](https://user-images.githubusercontent.com/16334718/58037062-7d90cb80-7b67-11e9-9278-e8b03c5ddd86.jpg) | Coineal | COINEAL | ⚠️ | ⚠️ |
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| ![poloniex](https://user-images.githubusercontent.com/16334718/59551277-335a0900-8fb2-11e9-9d1e-4ab2a7574148.jpg) | Poloniex | POLONIEX | * | [ws](https://docs.poloniex.com/#websocket-api) |
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| ![bitstamp](https://user-images.githubusercontent.com/16334718/59565122-2c062e80-908a-11e9-8a38-6264c26aa3c2.jpg) | Bitstamp | BITSTAMP | v2 | [ws](https://www.bitstamp.net/websocket/v2/) |
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| ![korbotex](https://user-images.githubusercontent.com/16334718/59919092-82e07f00-9461-11e9-869a-d801dce68b08.jpg) | Korbot EX | KOTBOTEX | v3 | [ws](https://www.okex.com/docs/en/#spot_ws-all) |
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⚠️ : Uses endpoints that are used by the official web. This is not an official api and should be used with care.
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‎reactive-crypto-core/src/main/kotlin/com/njkim/reactivecrypto/core/common/model/ExchangeVendor.kt

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@@ -32,6 +32,7 @@ enum class ExchangeVendor {
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COINEAL,
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POLONIEX,
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BITSTAMP,
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KORBOTEX,
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UNKNOWN;
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/**

‎reactive-crypto-korbotex/build.gradle

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/*
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* Copyright 2019 namjug-kim
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*
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* LINE Corporation licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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apply plugin: 'kotlin'
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apply plugin: 'org.jetbrains.kotlin.jvm'
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version '1.0-SNAPSHOT'
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dependencies {
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compile project(':reactive-crypto-okex')
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compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
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}
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compileKotlin {
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kotlinOptions.jvmTarget = "1.8"
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}
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compileTestKotlin {
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kotlinOptions.jvmTarget = "1.8"
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}

‎reactive-crypto-korbotex/src/main/kotlin/com/njkim/reactivecrypto/korbotex/KorbotexWebsocketClient.kt

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/*
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* Copyright 2019 namjug-kim
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*
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* LINE Corporation licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.njkim.reactivecrypto.korbotex
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import com.njkim.reactivecrypto.core.common.model.ExchangeVendor
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import com.njkim.reactivecrypto.core.common.model.currency.CurrencyPair
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import com.njkim.reactivecrypto.core.common.model.order.OrderBook
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import com.njkim.reactivecrypto.core.common.model.order.TickData
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import com.njkim.reactivecrypto.okex.OkexWebsocketClient
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import reactor.core.publisher.Flux
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class KorbotexWebsocketClient : OkexWebsocketClient("wss://okexcomreal.bafang.com:8443/ws/v3?brokerId=151") {
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override fun createDepthSnapshot(subscribeTargets: List<CurrencyPair>): Flux<OrderBook> {
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return super.createDepthSnapshot(subscribeTargets)
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.map { it.copy(exchangeVendor = ExchangeVendor.KORBOTEX) }
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}
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override fun createTradeWebsocket(subscribeTargets: List<CurrencyPair>): Flux<TickData> {
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return super.createTradeWebsocket(subscribeTargets)
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.map { it.copy(exchangeVendor = ExchangeVendor.KORBOTEX) }
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}
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}

‎reactive-crypto-korbotex/src/test/java/com/njkim/reactivecrypto/kobotex/ExchangeClientFactoryJavaTest.java

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/*
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* Copyright 2019 namjug-kim
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*
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* LINE Corporation licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.njkim.reactivecrypto.kobotex;
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import com.njkim.reactivecrypto.core.ExchangeClientFactory;
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import com.njkim.reactivecrypto.core.common.model.ExchangeVendor;
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import com.njkim.reactivecrypto.core.websocket.ExchangeWebsocketClient;
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import com.njkim.reactivecrypto.korbotex.KorbotexWebsocketClient;
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import org.junit.Test;
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import static org.assertj.core.api.Assertions.assertThat;
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public class ExchangeClientFactoryJavaTest {
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@Test
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public void websocket_client() {
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ExchangeWebsocketClient exchangeWebsocketClient = ExchangeClientFactory.websocket(ExchangeVendor.KORBOTEX);
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assertThat(exchangeWebsocketClient).isNotNull();
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assertThat(exchangeWebsocketClient).isInstanceOf(ExchangeWebsocketClient.class);
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assertThat(exchangeWebsocketClient).isExactlyInstanceOf(KorbotexWebsocketClient.class);
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}
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}

‎reactive-crypto-korbotex/src/test/java/com/njkim/reactivecrypto/kobotex/KorbotexWebsocketClientJavaTest.java

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/*
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* Copyright 2019 namjug-kim
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*
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* LINE Corporation licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.njkim.reactivecrypto.kobotex;
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import com.njkim.reactivecrypto.core.common.model.ExchangeVendor;
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import com.njkim.reactivecrypto.core.common.model.currency.CurrencyPair;
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import com.njkim.reactivecrypto.core.common.model.order.OrderBook;
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import com.njkim.reactivecrypto.core.common.model.order.TickData;
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import com.njkim.reactivecrypto.korbotex.KorbotexWebsocketClient;
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import org.junit.Test;
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import reactor.core.publisher.Flux;
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import reactor.test.StepVerifier;
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import java.math.BigDecimal;
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import java.util.Collections;
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import static org.assertj.core.api.Assertions.assertThat;
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public class KorbotexWebsocketClientJavaTest {
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@Test
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public void tick_data_subscribe() {
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// given
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CurrencyPair targetCurrencyPair = CurrencyPair.parse("BTC", "USDT");
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Flux<TickData> tickDataFlux = new KorbotexWebsocketClient()
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.createTradeWebsocket(Collections.singletonList(targetCurrencyPair));
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// when
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StepVerifier.create(tickDataFlux.limitRequest(5))
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.expectNextCount(3)
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// then
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.assertNext(tickData -> {
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assertThat(tickData).isNotNull();
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assertThat(tickData.getCurrencyPair())
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.isEqualTo(targetCurrencyPair);
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assertThat(tickData.getExchangeVendor())
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.isEqualByComparingTo(ExchangeVendor.KORBOTEX);
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assertThat(tickData.getPrice())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(tickData.getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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})
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.assertNext(tickData -> {
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assertThat(tickData).isNotNull();
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assertThat(tickData.getCurrencyPair())
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.isEqualTo(targetCurrencyPair);
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assertThat(tickData.getExchangeVendor())
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.isEqualByComparingTo(ExchangeVendor.KORBOTEX);
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assertThat(tickData.getPrice())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(tickData.getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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})
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.verifyComplete();
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}
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@Test
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public void orderBook_subscribe() {
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// given
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CurrencyPair targetCurrencyPair = CurrencyPair.parse("BTC", "USDT");
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Flux<OrderBook> orderBookFlux = new KorbotexWebsocketClient()
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.createDepthSnapshot(Collections.singletonList(targetCurrencyPair));
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// when
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StepVerifier.create(orderBookFlux.limitRequest(5))
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.expectNextCount(3)
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// then
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.assertNext(orderBook -> {
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assertThat(orderBook).isNotNull();
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assertThat(orderBook.getCurrencyPair())
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.isEqualTo(targetCurrencyPair);
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assertThat(orderBook.getExchangeVendor())
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.isEqualByComparingTo(ExchangeVendor.KORBOTEX);
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assertThat(orderBook.getAsks())
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.isNotEmpty();
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assertThat(orderBook.getBids())
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.isNotEmpty();
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assertThat(orderBook.getAsks().get(0).getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(orderBook.getBids().get(0).getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(orderBook.getAsks().get(0).getPrice())
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.withFailMessage("ask price must be bigger than bid price")
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.isGreaterThan(orderBook.getBids().get(0).getPrice());
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assertThat(orderBook.getAsks().get(0).getPrice())
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.withFailMessage("asks must be sorted by price asc")
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.isLessThan(orderBook.getAsks().get(1).getPrice());
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assertThat(orderBook.getBids().get(0).getPrice())
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.withFailMessage("bids must be sorted by price desc")
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.isGreaterThan(orderBook.getBids().get(1).getPrice());
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})
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.assertNext(orderBook -> {
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assertThat(orderBook).isNotNull();
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assertThat(orderBook.getCurrencyPair())
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.isEqualTo(targetCurrencyPair);
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assertThat(orderBook.getExchangeVendor())
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.isEqualByComparingTo(ExchangeVendor.KORBOTEX);
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assertThat(orderBook.getAsks())
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.isNotEmpty();
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assertThat(orderBook.getBids())
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.isNotEmpty();
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assertThat(orderBook.getAsks().get(0).getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(orderBook.getBids().get(0).getQuantity())
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.isGreaterThan(BigDecimal.ZERO);
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assertThat(orderBook.getAsks().get(0).getPrice())
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.withFailMessage("ask price must be bigger than bid price")
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.isGreaterThan(orderBook.getBids().get(0).getPrice());
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assertThat(orderBook.getAsks().get(0).getPrice())
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.withFailMessage("asks must be sorted by price asc")
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.isLessThan(orderBook.getAsks().get(1).getPrice());
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assertThat(orderBook.getBids().get(0).getPrice())
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.withFailMessage("bids must be sorted by price desc")
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.isGreaterThan(orderBook.getBids().get(1).getPrice());
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})
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.verifyComplete();
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}
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}

‎reactive-crypto-korbotex/src/test/kotlin/com/njkim/reactivecrypto/kobotex/ExchangeClientFactoryTest.kt

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/*
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* Copyright 2019 namjug-kim
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*
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* LINE Corporation licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.njkim.reactivecrypto.kobotex
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import com.njkim.reactivecrypto.core.ExchangeClientFactory
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import com.njkim.reactivecrypto.core.common.model.ExchangeVendor
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import com.njkim.reactivecrypto.core.websocket.ExchangeWebsocketClient
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import com.njkim.reactivecrypto.korbotex.KorbotexWebsocketClient
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import org.assertj.core.api.Assertions.assertThat
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import org.junit.Test
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class ExchangeClientFactoryTest {
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@Test
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fun `create websocket client`() {
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val exchangeWebsocketClient = ExchangeClientFactory.websocket(ExchangeVendor.KORBOTEX)
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assertThat(exchangeWebsocketClient).isNotNull
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assertThat(exchangeWebsocketClient).isInstanceOf(ExchangeWebsocketClient::class.java)
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assertThat(exchangeWebsocketClient).isExactlyInstanceOf(KorbotexWebsocketClient::class.java)
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}
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}

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