The NEST3.0 automatic order taking arbitrage program is an example pr…

…ogram. Related parameters such as price deviation percentage, the default value is 2%, which is not necessarily the optimal order taking arbitrage ratio, and users can adjust it according to the actual situation.
NEST-Protocol · Aug 22, 2020 · 9f71c1a · 9f71c1a
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diff --git a/NestEatOffer/.gitignore b/NestEatOffer/.gitignore
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+/target
diff --git a/NestEatOffer/README.md b/NestEatOffer/README.md
diff --git a/NestEatOffer/eatOffer.iml b/NestEatOffer/eatOffer.iml
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
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+  <component name="FacetManager">
+    <facet type="Spring" name="Spring">
+      <configuration />
+    </facet>
+    <facet type="web" name="Web">
+      <configuration>
+        <webroots />
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
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diff --git a/NestEatOffer/pom.xml b/NestEatOffer/pom.xml
@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.6.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.nest</groupId>
+    <artifactId>eatOffer</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>eatOffer</name>
+    <description>Demo project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <exclusions>
+                <exclusion>
+                    <artifactId>spring-boot-starter-logging</artifactId>
+                    <groupId>org.springframework.boot</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>22.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-log4j2</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpcore</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>3.8.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>1.2.56</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.8.5</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.web3j</groupId>
+            <artifactId>core</artifactId>
+            <version>3.3.1</version>
+        </dependency>
+
+
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>4.3.5</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpmime</artifactId>
+            <version>4.5.6</version>
+        </dependency>
+
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
diff --git a/NestEatOffer/src/main/java/com/nest/ib/IbApplication.java b/NestEatOffer/src/main/java/com/nest/ib/IbApplication.java
@@ -0,0 +1,17 @@
+package com.nest.ib;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
+@EnableScheduling
+public class IbApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(IbApplication.class, args);
+    }
+
+}
diff --git a/NestEatOffer/src/main/java/com/nest/ib/config/ListenerAsyncConfiguration.java b/NestEatOffer/src/main/java/com/nest/ib/config/ListenerAsyncConfiguration.java
@@ -0,0 +1,36 @@
+package com.nest.ib.config;
+
+import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.AsyncConfigurer;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+
+import java.util.concurrent.Executor;
+
+@Configuration
+@EnableAsync
+public class ListenerAsyncConfiguration implements AsyncConfigurer {
+
+    /**
+     * Gets the asynchronous thread pool execution object
+     *
+     * @return
+     */
+    @Override
+    public Executor getAsyncExecutor() {
+        // Use the Spring built-in thread pool task object
+        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
+        // Set the thread pool parameters
+        taskExecutor.setCorePoolSize(5);
+        taskExecutor.setMaxPoolSize(10);
+        taskExecutor.setQueueCapacity(25);
+        taskExecutor.initialize();
+        return taskExecutor;
+    }
+
+    @Override
+    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
+        return null;
+    }
+}
diff --git a/NestEatOffer/src/main/java/com/nest/ib/config/MvcConfig.java b/NestEatOffer/src/main/java/com/nest/ib/config/MvcConfig.java
@@ -0,0 +1,35 @@
+package com.nest.ib.config;
+
+import com.nest.ib.interceptor.PermissionInterceptor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class MvcConfig implements WebMvcConfigurer {
+
+    @Autowired
+    private PermissionInterceptor permissionInterceptor;
+
+    /**
+     *
+     * @param registry
+     */
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedOrigins("*")
+                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
+                .allowCredentials(true).maxAge(3600);
+    }
+
+    /**
+     * Add interceptor
+     */
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(permissionInterceptor);
+    }
+}
diff --git a/NestEatOffer/src/main/java/com/nest/ib/constant/AddressEnum.java b/NestEatOffer/src/main/java/com/nest/ib/constant/AddressEnum.java
@@ -0,0 +1,44 @@
+package com.nest.ib.constant;
+
+/**
+ * @author wll
+ * @date 2020/7/20 10:54
+ * Contract address
+ */
+public enum AddressEnum {
+
+    /**
+     * Offer price contract address
+     */
+    OFFER_PRICE_CONTRACT_ADDRESS(""),
+
+    /**
+     * Quotation Factory Contract
+     */
+    OFFER_CONTRACT_FACTORY_ADDRESS(""),
+
+    /**
+     * USDT contract address: Calibration quote type, unchangeable
+     */
+    USDT_TOKEN_CONTRACT_ADDRESS("0xdac17f958d2ee523a2206206994597c13d831ec7"),
+
+    /**
+     * Voting contract address: Maps each contract address and cannot be changed
+     */
+    VOTE_CONTRACT_ADDRESS("0x6Cd5698E8854Fb6879d6B1C694223b389B465dea")
+    ;
+
+    AddressEnum(String value) {
+        this.value = value;
+    }
+
+    private String value;
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+}