refactor: AWS SNS를 통해 웹소켓 사용하도록 수정

api/src/main/kotlin/gloddy/ChatController.kt

@@ -9,11 +9,9 @@ import org.springframework.stereotype.Controller
 @Controller
 class ChatController(private val groupChatCommander: GroupChatCommander) {
 
-    @MessageMapping("/chat/message/{chatId}")
-    fun sendChat(@DestinationVariable chatId: String, createMessageCommand: GroupChatCreateMessageCommand) {
-        groupChatCommander.createMessage(createMessageCommand)
+    @MessageMapping("{chatId}")
+    fun sendChat(@DestinationVariable chatId: String, command: GroupChatCreateMessageCommand) {
+        groupChatCommander.createMessage(command)
 
-        // messagingTemplate.convertAndSend("/sub/chat$chatId", createMessageCommand)
-        // 위 코드는 SQS를 처리하는 곳으로 이전되어야 함
     }
 }

domain/src/main/kotlin/gloddy/groupChat/event/producer/MessageEventProducer.kt

@@ -4,5 +4,5 @@ import gloddy.groupChat.event.GroupChatEvent
 
 interface MessageEventProducer {
 
-    fun produceEvent(groupChatEvent: GroupChatEvent?)
+    fun produceEvent(groupChatEvent: GroupChatEvent)
 }

out-message/build.gradle.kts

@@ -1,5 +1,6 @@
 dependencies {
     implementation(project(":domain"))
+    compileOnly("org.springframework:spring-tx")
     implementation(platform("io.awspring.cloud:spring-cloud-aws-dependencies:3.0.3"))
     implementation("io.awspring.cloud:spring-cloud-aws-starter-sns")
 }

out-message/src/main/kotlin/gloddy/sns/config/SnsConfig.kt

@@ -1,7 +1,18 @@
 package gloddy.sns.config
 
+import io.awspring.cloud.sns.core.TopicArnResolver
+import io.awspring.cloud.sns.core.TopicsListingTopicArnResolver
+import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
+import software.amazon.awssdk.services.sns.SnsClient
 
 @Configuration
+@EnableConfigurationProperties(SnsProperties::class)
 class SnsConfig {
+
+    @Bean
+    fun topicArnResolver(snsClient: SnsClient): TopicArnResolver {
+        return TopicsListingTopicArnResolver(snsClient)
+    }
 }

out-message/src/main/kotlin/gloddy/sns/config/SnsProperties.kt

@@ -7,9 +7,9 @@ import org.springframework.stereotype.Component
 @Component
 @ConfigurationProperties("spring.cloud")
 class SnsProperties {
-    var event: Map<String, String>? = null
+    var event: Map<String, String> = HashMap<String, String>()
 
     fun getTopic(key: String): String? {
-        return event!![key]
+        return event[key]
     }
 }