BAEL-315 Somehow the main application was deleted.

spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/GatewayApplication.java

@@ -0,0 +1,40 @@
+package com.baeldung.spring.cloud.bootstrap.gateway;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+import org.springframework.cloud.netflix.ribbon.RibbonClientSpecification;
+import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
+import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@SpringBootApplication
+@EnableZuulProxy
+@EnableEurekaClient
+public class GatewayApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(GatewayApplication.class, args);
+    }
+
+    @Autowired(required = false)
+    private List<RibbonClientSpecification> configurations = new ArrayList<>();
+
+    @Bean
+    @LoadBalanced RestTemplate restTemplate(){
+        return new RestTemplate();
+    }
+
+
+    @Bean
+    public SpringClientFactory springClientFactory() {
+        SpringClientFactory factory = new SpringClientFactory();
+        factory.setConfigurations(this.configurations);
+        return factory;
+    }
+}