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feat: 문서 구조 변경 및 tech-visual 스킬 추가

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DongHyeonka
2026-09-04 18:20:00 +09:00
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.alt.md
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# AP3 session cookie에서 BFF downstream Bearer까지
## Alternative text
브라우저, BFF, authorized-client store, Resource Server 사이에서 AP3_SESSION 요청, server-held token 조회, downstream Bearer 호출과 중계 JSON이 이어지는 순서도.
## Long description
브라우저가 Authorization header 없이 AP3_SESSION cookie로 /bff/api/me를 호출한다. BFF는 현재 Authentication으로 authorized-client manager를 호출해 server-held access token을 얻고 Resource Server의 /api/me에 Bearer header를 붙인다. Resource Server가 JWT를 검증해 사용자 JSON을 반환하면 BFF가 ResponseEntity로 받아 브라우저에 중계한다. 브라우저 session cookie는 downstream으로 전달되지 않는다.
## Elements and evidence
- **브라우저** (participant): Authorization header 없이 AP3_SESSION cookie로 BFF endpoint를 호출하고 중계 JSON을 받는다. Evidence: L714–L722, L750–L760, L796–L809.
- **Spring BFF** (participant): Session authentication을 authorized client 조회로 바꾸고 Resource Server용 Bearer 요청을 조립한다. Evidence: L750–L783, L796–L809.
- **Authorized-client store** (participant): Registration과 principal name으로 BFF의 access token과 refresh token을 보관한다. Evidence: L700–L712, L762–L768.
- **Resource Server** (participant): BFF가 붙인 Bearer JWT를 검증하고 사용자 JSON을 반환한다. Evidence: L776–L796.
## Relationships
- **브라우저 → Spring BFF:** GET /bff/api/me + AP3_SESSION. Evidence: L750–L760.
- **Spring BFF → Authorized-client store:** authorize current principal. Evidence: L762–L768.
- **Authorized-client store → Spring BFF:** server-held access token. Evidence: L762–L768.
- **Spring BFF → Resource Server:** GET /api/me · Bearer access token. Evidence: L770–L783.
- **Resource Server → Spring BFF:** subject · username · issuer · audience. Evidence: L785–L796.
- **Spring BFF → 브라우저:** BFF ResponseEntity → browser JSON. Evidence: L796–L809.
docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.d2
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# AP3 session cookie에서 BFF downstream Bearer까지
# Question: AP3에서 브라우저의 AP3_SESSION은 어떻게 BFF가 만든 downstream Bearer 요청과 중계 JSON이 되는가?
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.dot
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digraph techviz {
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.drawio
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.excalidraw
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.manifest.json
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docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.mmd
+13
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%% AP3 session cookie에서 BFF downstream Bearer까지
%% question: AP3에서 브라우저의 AP3_SESSION은 어떻게 BFF가 만든 downstream Bearer 요청과 중계 JSON이 되는가?
sequenceDiagram
participant n0 as 브라우저
participant n1 as Spring BFF
participant n2 as Authorized-client store
participant n3 as Resource Server
n0->>n1: GET /bff/api/me + AP3_SESSION
n1->>n2: authorize current principal
n2->>n1: server-held access token
n1->>n3: GET /api/me · Bearer access token
n3->>n1: subject · username · issuer · audience
n1->>n0: BFF ResponseEntity → browser JSON
docs/keycloak/final/assets/ap3-bff-session-flow/ap3-bff-session-flow.svg
+84
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<title id="diagram-title">AP3 session cookie에서 BFF downstream Bearer까지</title>
<desc id="diagram-description">브라우저가 Authorization header 없이 AP3_SESSION cookie로 /bff/api/me를 호출한다. BFF는 현재 Authentication으로 authorized-client manager를 호출해 server-held access token을 얻고 Resource Server의 /api/me에 Bearer header를 붙인다. Resource Server가 JWT를 검증해 사용자 JSON을 반환하면 BFF가 ResponseEntity로 받아 브라우저에 중계한다. 브라우저 session cookie는 downstream으로 전달되지 않는다.</desc>
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<text class="edge-label" x="225.0" y="129.0">1. GET /bff/api/me + AP3_SESSION</text>
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<text class="edge-label" x="225.0" y="439.0">6. BFF ResponseEntity → browser JSON</text>
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