Step 3 – Set up your web server

build.gradle

@@ -1,11 +1,36 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE")
+    }
+}
+
 apply plugin: 'java'
 apply plugin: 'eclipse'
 apply plugin: 'idea'
+apply plugin: 'spring-boot'
+
+jar {
+    baseName = 'gs-spring-boot'
+    version = '0.1.0'
+}
 
 repositories {
     jcenter()
+    mavenCentral()
 }
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 dependencies {
+    compile('org.springframework.boot:spring-boot-starter-web') {
+        exclude module: "spring-boot-starter-tomcat"
+    }
+    compile('org.springframework.boot:spring-boot-starter-jetty')
+    compile('org.springframework.boot:spring-boot-starter-actuator')
+
     compile 'io.ably:ably-java:0.8.+'
 }

src/main/java/io/ably/tutorial/Application.java

@@ -0,0 +1,13 @@
+package io.ably.tutorial;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        ApplicationContext ctx = SpringApplication.run(Application.class, args);
+    }
+}

src/main/java/io/ably/tutorial/Example.java

@@ -2,7 +2,10 @@
 
 import io.ably.lib.rest.AblyRest;
 import io.ably.lib.types.AblyException;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
+@RestController
 public class Example {
 
     private final static String API_KEY = "INSERT-YOUR-API-KEY-HERE"; /* Sign up at ably.io to get your API key */
@@ -28,4 +31,10 @@ public Example() {
     private void initAbly() throws AblyException {
         ablyRest = new AblyRest(API_KEY);
     }
+
+    /* Add method index with RequestMapping annotation so the web app knows which method to use on our default URL */
+    @RequestMapping(value = "/")
+    public String index() {
+        return "Hello, I am a very simple server";
+    }
 }