{"id":23366620,"url":"https://github.com/imzero238/order-service","last_synced_at":"2025-04-07T23:15:30.107Z","repository":{"id":228192276,"uuid":"599663193","full_name":"imzero238/Order-service","owner":"imzero238","description":"주문 생성 및 관리 테스트","archived":false,"fork":false,"pushed_at":"2024-11-29T07:36:25.000Z","size":4709,"stargazers_count":0,"open_issues_count":1,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-02-14T00:24:58.679Z","etag":null,"topics":["kafka","kafka-streams","spring-cloud"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/imzero238.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2023-02-09T16:09:10.000Z","updated_at":"2024-11-29T07:44:15.000Z","dependencies_parsed_at":"2024-04-10T07:23:29.968Z","dependency_job_id":"9a53abd2-4b9e-4324-a3db-d99aac93562f","html_url":"https://github.com/imzero238/Order-service","commit_stats":null,"previous_names":["imzero238/order-service"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imzero238%2FOrder-service","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imzero238%2FOrder-service/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imzero238%2FOrder-service/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imzero238%2FOrder-service/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/imzero238","download_url":"https://codeload.github.com/imzero238/Order-service/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247744332,"owners_count":20988783,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["kafka","kafka-streams","spring-cloud"],"created_at":"2024-12-21T14:16:55.632Z","updated_at":"2025-04-07T23:15:29.886Z","avatar_url":"https://github.com/imzero238.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"## E-commerce side project: Order-service\n\n![](/_img/e_commerce_241129.png)\n\n- Spring Boot, Spring Data JPA\n- Spring Cloud G/W, Eureka\n- **Kafka**\n- MySQL\n- OpenFeign\n- Resilience4J CircuitBreaker + Retry\n\u003cbr\u003e\n\n## 📚 Refactoring Log\n\n### Transactional Outbox Pattern으로 선형성 보장\n\n![](/_img/transactional_outbox_pattern.png)\n- DB insert 작업과 Kafka Event 발행 작업의 선형성 보장\n- DB insert 된 데이터만 Kafka Event 발생해 DB와 Kafka 간 속도 차이 해결\n- but, TPS 저하 심각... 🤔 (현재 Debezium 적용 중)\n- https://medium.com/@im_zero/transactional-outbox-pattern%EC%9C%BC%EB%A1%9C-%EC%9D%B4%EB%B2%A4%ED%8A%B8-%EB%B0%9C%ED%96%89-%EB%B3%B4%EC%9E%A5%ED%95%98%EA%B8%B0-0f2e045b2e50\n- https://github.com/imzero238/Order-service/commit/6d4fcc6f6b19882117ef7f42369ba689ca535034\n\u003cbr\u003e\n\n### Kafka Streams Join으로 DB I/O 최소화\n\n![](/_img/kstream_ktable_join.png)\n\n- KStream-KTable Join 작업으로 DB I/O 최소화\n- *but, 데이터 실시간 접근 어려움 \u0026 task 할당 등 여러 문제 고려해 사용하지 않음 (포스팅에 포함)*\n- https://medium.com/@im_zero/kstream-ktable-join-%EC%A0%81%EC%9A%A9-%EC%8B%A4%ED%8C%A8%EA%B8%B0-f7b8bfa11e42\n- https://github.com/imzero238/Order-service/blob/master/src/main/java/com/ecommerce/orderservice/kafka/config/streams/KStreamKTableJoinConfig.java\n\u003cbr\u003e\n\n### Resilience4J CircuitBreaker + Retry 설정\n\n![](/_img/circuit-breaker-retry.png)\n\n- OpenFeign 사용 메서드에 Resilience4J CircuitBreaker, Retry 모듈 추가해 무한 응답하는 상황 방지\n- Exponential Backoff and Jitter 전략 사용\n- https://medium.com/@im_zero/resilience4j-retry-circuitbreaker-%EC%A0%81%EC%9A%A9%ED%95%98%EA%B8%B0-a60d06a46c54\n- https://github.com/imzero238/Order-service/blob/master/src/main/java/com/ecommerce/orderservice/openfeign/ItemServiceClient.java\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimzero238%2Forder-service","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fimzero238%2Forder-service","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimzero238%2Forder-service/lists"}