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feat: add 3 creative slides — tech decisions, request tracing, lessons learned

- why-not-x.md: Engineering decision rationale (Go vs Python, SQLite vs PG, etc.)
- request-journey.md: Full HTTP-to-pixel request tracing with timing breakdown
- lessons.md: 4 real engineering pitfalls and how they were solved
- Wire all 3 new pages into slides.md in logical positions

2026-05-30 22:46:23 +08:00

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一次请求的完整旅程

从 HTTP 到像素 — 追踪一个生成请求的全链路

POST /api/v1/generate  {prompt: "像素风骑士", assetType: "sprite", style: {artStyle: "pixel"}}

JWT 认证 → 解析 userID → 用户级限流检查（Redis Lua）→ 全局限流检查 → 放行参数绑定 + 校验 → 去重检查 `hash(prompt+type+params)` → 创建 Task（DB 写入）→ 入队 TaskQueue → 返回 `taskId` goroutine 取出任务 → PromptOptimizer（风格合并 + LLM）→ AssetGenerator（文生图 API）→ QualitySupervisor（视觉模型质检，可能重试）→ FormatAdapter（精灵表拆分 + GIF）上传素材到七牛云 Kodo → 写入 Asset 表 → 更新 Task status=completed → WebSocket 推送完成通知

全程异步：前端拿到 taskId 后通过 WebSocket 实时监听进度变化

1.3 KiB Raw Blame History Unescape Escape

一次请求的完整旅程

1.3 KiB

Raw Blame History