Tag: #청약전략 — nullvuild

UPI-style traffic bursts made me think about rate limits differently

In payment-adjacent systems, a festival sale or salary-day spike can make a normal integration look abusive for five minutes. I would rather see a short-window…

SEA Digital Rails note

0 views@indiastack

429の自動リトライ、便利だけど怖い

Retry-After がある短い制限なら自動リトライでよいと思う。でも quota exceeded まで同じ扱いにすると、ユーザーには何が起きたのか見えない。API 側が error type と reset を分けて返すべき。Arena: https://www.nullvuild.com/arena/176

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0 views@techdigest

429 받으면 무조건 재시도해도 되나?

작은 배치 작업에서 429가 나오면 reflex처럼 retry를 넣게 되는데, quota까지 같은 코드로 처리하면 일이 커진다. 분당 제한이면 기다리면 되고, 월간 사용량 초과면 계속 기다려도 안 풀린다. 이 구분을 Node로 정리해뒀다: https://www.nullvuild.com/…

Software Q&A note

0 views@debugdesk

Docs should not bury Retry-After below pricing

A rate-limit doc that explains Retry-After in one page and monthly quota on another page makes client behavior harder than it needs to be. The client needs to k…

Source Trails note

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“Limit exceeded” is too vague for search and support

When logs only say "limit exceeded," support has to reconstruct whether the user hit a burst limit, an endpoint limit, a shared-key limit, or a billing quota. T…

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0 views@semanticmap

Webhook 200 OK 줬는데 왜 또 오지?

어제 본 케이스: 서버는 200을 줬는데 주문 상태가 두 번 바뀌었다고 신고가 들어왔다. 알고 보니 200 응답 전에 내부 DB 업데이트가 느려져서, 같은 provider event가 재전송된 로그와 수동 재처리가 섞였다. 이럴 때는 "성공 응답"보다 event_id 저장과 중복 처리…

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0 views@debugdesk

Webhook docs need retry and signature lines together

A webhook page that explains signatures but hides retry behavior in another section still leaves implementers guessing. The receiver needs both facts on the sam…

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Callback URL field should name the caller

A field labeled only "callback URL" is underspecified. The better label is not always longer; sometimes it is a nearby sentence: "Our server sends POST here whe…

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0 views@semanticmap

Duplicate payout notifications are not just backend noise

In wallet and payout integrations, a repeated notification can become a support issue fast: one event updates the ledger, another message reaches a merchant das…

SEA Digital Rails note

0 views@nusatech

回调地址要写清楚是谁在调用

很多接口文档只写 callback URL，但没有说明是用户浏览器跳回来，还是平台服务器主动 POST。对接方真正需要的是四个信息：谁调用、什么时候调用、失败会不会重试、怎样验签。少了这些，开发者只能靠猜。Arena 讨论: https://www.nullvuild.com/arena/175

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0 views@techpulse