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gratisreise/README.md

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๐Ÿš€ Identity

"์ž‘์€ ๋ณ€ํ™”์ผ์ง€๋ผ๋„ ๋ช…ํ™•ํ•œ ๊ทผ๊ฑฐ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ฐœ๋ฐœํ•ฉ๋‹ˆ๋‹ค. ์• ๋งคํ•œ ์˜๋„๋ฅผ ๋‹ด์€ ์ฝ”๋“œ๋ณด๋‹ค ํ‹€๋ฆฌ๋”๋ผ๋„ ๋ช…ํ™•ํ•œ ์˜๋„๊ฐ€ ๋‹ด๊ธด ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•˜๋Š” ๊ฒƒ์„ ์„ ํ˜ธํ•ฉ๋‹ˆ๋‹ค."

๐Ÿ›  Tech Stack

  • Backend

Java Spring Boot Spring Cloud JPA Querydsl RabbitMQ JUnit5 Mockito

  • Infra

GCP AWS Docker GitHub Actions Prometheus Grafana Sentry

  • Database

PostgreSQL MongoDB Redis

๐Ÿ“‚ Featured Projects

  • Keyword: ๋ฐ์ดํ„ฐ ๊ธฐ๋ฐ˜ ์„ฑ๋Šฅ ์ตœ์ ํ™”
  • Summary:
    • JVM & GC ํŠœ๋‹: GC ํŒŒ๋ผ๋ฏธํ„ฐ ์กฐ์ •์„ p99 30s -> 5s๋กœ 80% ๊ฐœ์„ 
    • Redis ์บ์‹ฑ: ๊ฒŒ์‹œ๊ธ€ ์ „์ฒด์กฐํšŒ api TPS๊ฐ€ 100 -> 212 100% ๊ฐœ์„ 
    • N+1 ๋ฌธ์ œ: QueryDSL์„ ์ด์šฉํ•œ ์ฟผ๋ฆฌ ์ตœ์ ํ™”๋กœ N+1๋ฌธ์ œ ํ•ด๊ฒฐ ํ›„ 90ms -> 45ms๋กœ 50% ๊ฐœ์„ 
    • CI-CD ํŒŒ์ดํ”„๋ผ์ธ: GitHUb Actions๋ฅผ ์ด์šฉํ•œ CI-CD ํŒŒ์ดํ”„ ๋ผ์ธ ๊ตฌ์ถ•์œผ๋กœ ๋ฐฐํฌ์‹œ๊ฐ„ 40๋ถ„ -> 8๋ถ„ 80% ๊ฐ์†Œ
  • Keyword: ๋‹ค์ค‘ ์„œ๋ฒ„๋ฅผ ๊ณ ๋ คํ•œ ํ™•์žฅ์„ฑ ์žˆ๋Š” ์•„ํ‚คํ…์ฒ˜ ์„ค๊ณ„
  • Summary:
    • Netfilx Passport: API Gateway ๊ธฐ๋ฐ˜ ์š”์ฒญ ํ๋ฆ„์—์„œ โ€œJWT ์™ธ๋ถ€ ์ธ์ฆโ€๊ณผ โ€œ๋‚ด๋ถ€ Passport ์ธ์ฆโ€์„ ๋ถ„๋ฆฌ
    • Outbox Pattenr & DLQ:Outbox Pattern๊ณผ DLQ ๊ธฐ๋ฐ˜์„ค๊ณ„๋กœ ๋ฐ์ดํ„ฐ ์ผ๊ด€์„ฑ๊ณผ ๋ฉ”์‹œ์ง€ ์•ˆ์ •์„ฑ ๊ฐ•ํ™”
    • Redis Pub/Sub:Redis Pub/Sub์„ ์ด์šฉํ•ด ๋ฉ”์„ธ์ง€ ์ฒ˜๋ฆฌ ๋ถˆ์ผ์น˜๋ฅผ ํ•ด๊ฒฐํ•˜๊ณ  ์•Œ๋ฆผ์„œ๋น„์Šค ํ™•์žฅ์„ฑ ๊ฐœ์„ 
    • RabbitMQ STOMP:RabbitMQ STOMP ์™ธ๋ถ€ ๋ฉ”์„ธ์ง€ ๋ธŒ๋กœ์ปค ์‚ฌ์šฉ์œผ๋กœ ์ฑ„ํŒ…์„œ๋น„์Šค ํ™•์žฅ์„ฑ ๊ฐœ์„ 
    • MSA: Spring Cloud๋ฅผ ์ด์šฉํ•˜์—ฌ 6๊ฐœ์˜ ์„œ๋น„์Šค๋ฅผ ๊ฐ€์ง€๋Š” MSA ์•„ํ‚คํ…์ฒ˜ ๊ตฌ์ถ•

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