#297 Create Spring Boot-backed Price microservice with an endpoint to retrieve a price

api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceApplication.java

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+package com.iluwatar.price.microservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * PriceApplication starts up Spring Boot, exposing endpoints for the Price microservice through
+ * the {@link PriceController}.
+ */
+@SpringBootApplication
+public class PriceApplication {
+
+  /**
+   * Microservice entry point
+   * @param args
+   *          command line args
+   */
+  public static void main(String[] args) {
+    SpringApplication.run(PriceApplication.class, args);
+  }
+}

api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceController.java

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+package com.iluwatar.price.microservice;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Exposes the Price microservice's endpoints
+ */
+@RestController
+public class PriceController {
+
+  /**
+   * An endpoint for a user to retrieve a product's price
+   * @return A product's price
+   */
+  @RequestMapping(value = "/price", method = RequestMethod.GET)
+  public String getPrice() {
+    return "20";
+  }
+}

api-gateway/price-microservice/src/main/resources/application.properties

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+server.port=50006