fix: 출판 처리기 이벤트 호출 구조로 변경

src/main/java/com/lifelibrarians/lifebookshelf/event/PublicationCreatedEvent.java

@@ -0,0 +1,14 @@
+package com.lifelibrarians.lifebookshelf.event;
+
+public class PublicationCreatedEvent {
+
+	private final Long publicationId;
+
+	public PublicationCreatedEvent(Long publicationId) {
+		this.publicationId = publicationId;
+	}
+
+	public Long getPublicationId() {
+		return publicationId;
+	}
+}

src/main/java/com/lifelibrarians/lifebookshelf/event/PublicationCreatedEventListener.java

@@ -0,0 +1,21 @@
+package com.lifelibrarians.lifebookshelf.event;
+
+import com.lifelibrarians.lifebookshelf.publication.domain.PublicationManager;
+import lombok.RequiredArgsConstructor;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.event.TransactionPhase;
+import org.springframework.transaction.event.TransactionalEventListener;
+
+@Component
+@RequiredArgsConstructor
+public class PublicationCreatedEventListener {
+
+	private final PublicationManager publicationManager;
+
+	@Async
+	@TransactionalEventListener(phase = TransactionPhase.AFTER_COMMIT)
+	public void handlePublicationCreatedEvent(PublicationCreatedEvent event) {
+		publicationManager.invokeNewPublicationProcessor(event.getPublicationId());
+	}
+}

src/main/java/com/lifelibrarians/lifebookshelf/exception/status/PublicationExceptionStatus.java

@@ -17,7 +17,7 @@ public enum PublicationExceptionStatus implements ExceptionStatus {
 	PUBLICATION_TITLE_LENGTH_EXCEEDED(400, "PUB003", "제목은 최소 2자, 최대 64자까지 입력할 수 있습니다."),
 	NO_CHAPTERS_FOR_PUBLICATION(400, "PUB004", "출판을 위한 챕터가 존재하지 않습니다."),
 	NO_AUTOBIOGRAPHY_FOR_CHAPTER(400, "PUB005", "챕터에 대한 자서전이 존재하지 않는 챕터가 있습니다. 모든 챕터에 자서전을 입력해주세요."),
-	;
+	PUBLICATION_PROCESSOR_FAILED(502, "PUB006", "출판 처리 중 오류가 발생했습니다. 다시 시도해주세요.");
 
 
 	private final int statusCode;

src/main/java/com/lifelibrarians/lifebookshelf/publication/domain/ProdPublicationManager.java

@@ -3,13 +3,15 @@
 import com.amazonaws.services.lambda.AWSLambda;
 import com.amazonaws.services.lambda.model.InvokeRequest;
 import com.amazonaws.services.lambda.model.InvokeResult;
-import com.lifelibrarians.lifebookshelf.exception.DomainException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.lifelibrarians.lifebookshelf.exception.status.PublicationExceptionStatus;
 import com.lifelibrarians.lifebookshelf.log.Logging;
 import java.nio.charset.StandardCharsets;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.context.annotation.Profile;
-import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Component;
 
 @Component
@@ -20,20 +22,40 @@
 public class ProdPublicationManager implements PublicationManager {
 
 	private final AWSLambda awsLambda;
+	private final ObjectMapper objectMapper;
 
 	public void invokeNewPublicationProcessor(Long publicationId) {
 		String functionName = "NewPublicationProcessor";
 
-		InvokeRequest invokeRequest = new InvokeRequest()
-				.withFunctionName(functionName)
-				.withPayload("{\"publicationId\": \"" + publicationId + "\"}");
-		InvokeResult invokeResult = null;
 		try {
-			invokeResult = awsLambda.invoke(invokeRequest);
+
+			ObjectNode payloadNode = objectMapper.createObjectNode();
+			ObjectNode bodyNode = objectMapper.createObjectNode();
+			bodyNode.put("publicationId", publicationId);
+			payloadNode.set("body", bodyNode);
+
+			String payload = objectMapper.valueToTree(payloadNode).toString();
+
+			System.out.println("Payload: " + payload);
+
+			InvokeRequest invokeRequest = new InvokeRequest()
+					.withFunctionName(functionName)
+					.withPayload(payload);
+
+			InvokeResult invokeResult = awsLambda.invoke(invokeRequest);
 			String ans = new String(invokeResult.getPayload().array(), StandardCharsets.UTF_8);
+			JsonNode jsonResponse = objectMapper.readTree(ans);
+			if (
+					!jsonResponse.has("statusCode") ||
+							(jsonResponse.has("statusCode") && jsonResponse.get("statusCode").asInt() != 200)
+			) {
+				log.error("Lambda function returned: {}", ans);
+				throw PublicationExceptionStatus.PUBLICATION_PROCESSOR_FAILED.toDomainException();
+			}
 			log.info("Lambda function returned: {}", ans);
 		} catch (Exception e) {
-			throw new DomainException(HttpStatus.BAD_GATEWAY, "Failed to invoke lambda function");
+			log.error("Error invoking lambda function: {}", e.getMessage());
+			throw PublicationExceptionStatus.PUBLICATION_PROCESSOR_FAILED.toDomainException();
 		}
 	}
 }

src/main/java/com/lifelibrarians/lifebookshelf/publication/service/PublicationCommandService.java

@@ -12,7 +12,7 @@
 import com.lifelibrarians.lifebookshelf.log.Logging;
 import com.lifelibrarians.lifebookshelf.member.domain.Member;
 import com.lifelibrarians.lifebookshelf.publication.domain.Publication;
-import com.lifelibrarians.lifebookshelf.publication.domain.PublicationManager;
+import com.lifelibrarians.lifebookshelf.event.PublicationCreatedEvent;
 import com.lifelibrarians.lifebookshelf.publication.domain.PublishStatus;
 import com.lifelibrarians.lifebookshelf.publication.dto.request.PublicationCreateRequestDto;
 import com.lifelibrarians.lifebookshelf.publication.repository.PublicationRepository;
@@ -22,6 +22,7 @@
 import java.util.stream.Collectors;
 import javax.persistence.EntityManager;
 import lombok.RequiredArgsConstructor;
+import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -36,7 +37,8 @@ public class PublicationCommandService {
 	private final EntityManager entityManager;
 	private final BookChapterRepository bookChapterRepository;
 	private final BookContentRepository bookContentRepository;
-	private final PublicationManager publicationManager;
+	private final ApplicationEventPublisher eventPublisher;
+
 
 	private int calculateTotalPages(List<Chapter> chapters, int charactersPerPage) {
 		long totalTextLength = 0;
@@ -176,7 +178,7 @@ public void createPublication(Member member, PublicationCreateRequestDto request
 		);
 		publicationRepository.save(publication);
 
-		publicationManager.invokeNewPublicationProcessor(publication.getId());
+		eventPublisher.publishEvent(new PublicationCreatedEvent(publication.getId()));
 
 		deleteAllRelatedData(chapters.stream().map(Chapter::getId).collect(Collectors.toList()),
 				member.getId());