把 visionA-backend 6 個 in-memory store 接到資料庫持久化,範圍=完整 (PG 全接 + session 接 Redis + 交易韌性)。interface / handler 不動, 只加 DB 實作 + 換 wiring,config 未設 DB 時保留 in-memory fallback。 - 塊 0 基礎建設:pgx/v5 連線池 + DatabaseConfig/RedisConfig + golang-migrate runner(embed)+ cmd/migrate + testcontainers 測試基礎建設 - 塊 1 model → Postgres:array 映射、upsert 保留 CreatedAt、faa_object_key、 三維 filter(owner/chip/source)、soft-delete partial index - 塊 2 device → Postgres:partial unique(已刪 serial 可重註冊)、雙狀態欄位 - 塊 3 token → Postgres:pairing_tokens + session_tokens 分表、token_hash 當 PK - 塊 4 userSession → Redis:idle + absolute 雙 TTL 取代 cleanup goroutine (tunnel session 維持 in-memory,yamux handle 不可序列化) - 塊 5 交易/韌性:WithTx helper + 刪 device cascade 撤銷 token(同 tx 原子) + /healthz ping PG/Redis(fail-fast 503)+ pgx error 統一映射(不洩漏 raw error) 降級策略(fail-fast):PG 掉 → 持久資料 API 回 503;Redis 掉 → session 失敗 不自動 fallback in-memory(避免多機 session 不同步)。 DB:PostgreSQL 14.23(gen_random_uuid 內建、無 citext → email 用 lower() unique index)。每塊經 Reviewer 審查 + 真 PG/Redis testcontainers 全量 dbtest 綠燈, in-memory fallback 未受影響。 docs: 同步更新 database.md(schema/config/migration 清單)+ api-spec.md (409/503 錯誤碼、/healthz 新行為、device unpair cascade)。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
354 lines
11 KiB
Markdown
354 lines
11 KiB
Markdown
# API Spec — 對前端的 REST + WebSocket 端點
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> **base URL**:`https://api.visiona.cloud`(Phase 1)/ `http://localhost:3001`(雛形)
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> **認證**:`Authorization: Bearer <JWT>`(雛形可省略,走 `StaticAuthService`)
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> **通用回應格式**:
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> ```json
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> { "success": true, "data": {...} }
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> { "success": false, "error": { "code": "ERR_CODE", "message": "..." } }
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> ```
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---
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## 1. Auth(雛形 stub)
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### POST `/api/auth/login`
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- 雛形:回 `501 { code: "NOT_IMPLEMENTED" }`
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- Phase 1:`{ email, password }` → `{ user, access_token, refresh_token }`
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### POST `/api/auth/register`
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- 同上
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### POST `/api/auth/logout`
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- Phase 1:清 refresh token
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### GET `/api/auth/me`
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- 雛形:回 `demo-user` hard-coded
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- Phase 1:從 JWT 取
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---
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## 2. Pairing
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### POST `/api/pairing/token`
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- Auth required(雛形:靜默通過)
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- 雛形 Response:
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```json
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{ "success": false, "error": { "code": "NOT_IMPLEMENTED", "message": "Dev uses env VISIONA_PAIRING_TOKEN" } }
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```
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- Phase 1 Response:
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```json
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{
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"success": true,
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"data": {
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"token": "pk_AbCd1234...",
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"expires_at": "2026-04-21T13:00:00Z"
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}
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}
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```
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### GET `/api/pairing/status`
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- 查詢當前 user 的 tunnel 連線狀態
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- Response:
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```json
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{
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"success": true,
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"data": {
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"connected": true,
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"connected_at": "2026-04-21T12:00:00Z",
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"last_seen_at": "2026-04-21T12:34:56Z",
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"device_id": "dev-xxx",
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"agent_version": "local-tool 1.2.3"
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}
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}
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```
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### GET `/api/pairing/tokens`
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- List 當前 user 的所有 tokens
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- Phase 1:回 array of `{ id, device_id, kind, created_at, last_seen_at }`
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### DELETE `/api/pairing/tokens/:id`
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- 撤銷指定 token
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- Phase 1 實作;雛形 501
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---
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## 3. Devices
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以下大部分端點**會被轉發到 local agent**。api-server 行為:
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1. 檢查 user 有 tunnel 連線
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2. 若 device_id 有傳,檢查 ownership
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3. 透過 tunnel forward 請求到 local agent(沿用 POC `handleProxy`)
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4. 回傳 local agent 的 response
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路徑與回應格式**與 local-tool 相同**,前端改 base URL 即可。
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### GET `/api/devices` — 列出當前本地掃到的裝置
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### POST `/api/devices/scan` — 觸發重掃
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### GET `/api/devices/:id` — 單一裝置
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### POST `/api/devices/:id/connect`
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### POST `/api/devices/:id/disconnect`
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### POST `/api/devices/:id/flash` — 燒韌體(透過 tunnel)
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### POST `/api/devices/:id/inference/start`
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### POST `/api/devices/:id/inference/stop`
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**雲端特有(非 tunnel forward)**:
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### GET `/api/cloud/devices` — 列出「我在雲端綁過的 Device records」
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- 與 `GET /api/devices` 不同:這個是查雲端 DB,不問 local agent
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- 雛形:從 `InMemoryDeviceRepository` 回
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- Response:`[{ id, name, device_type, serial_number, status, last_seen_at }]`
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### POST `/api/cloud/devices/:id/rename`
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- 改雲端上的 device name
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### DELETE `/api/cloud/devices/:id` — 解除綁定(unpair)並刪除雲端 device record
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- **DB 接入後行為(塊 5)**:刪除 device 會在**同一交易內** cascade 撤銷該 device 的所有 pairing token + session token(`pairing_tokens` + `session_tokens` 兩張表,by `device_id`,`UPDATE ... SET revoked_at = now()`)。對應 DB 層一致性定義見 `../database.md` §6。
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- 撤銷後該 device 的既有 tunnel session 將無法續用,需重新配對。
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---
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## 4. Models
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### GET `/api/models` — 列出 user 的 model
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- 雲端模型(存 storage)+ preset models(硬編碼)
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- Response:
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```json
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{
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"success": true,
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"data": [
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{
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"id": "abc-123",
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"name": "YOLOv5 Face",
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"target_chip": "kl520",
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"file_size": 12345678,
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"source": "uploaded",
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"created_at": "..."
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}
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]
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}
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```
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### GET `/api/models/:id`
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- Model 詳情
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### POST `/api/models/init` — 初始化上傳
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- Request: `{ name, file_size, checksum, target_chip, description? }`
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- Response:
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```json
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{
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"success": true,
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"data": {
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"model_id": "new-id",
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"upload_url": "https://...presigned-put-url...",
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"upload_expires_at": "..."
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}
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}
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```
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### POST `/api/models/:id/finalize`
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- 在 presigned PUT 成功後呼叫
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- api-server 驗證檔案已存在、size / checksum 對 → status 改 "ready"
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### DELETE `/api/models/:id`
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### POST `/api/models/:id/load-to-device`
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- Body:`{ device_id }`
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- api-server 產 presigned GET URL → 透過 tunnel 送 local agent 「下載並載入」
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- 回傳 job status
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---
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## 5. Clusters(從 POC 搬)
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### GET `/api/clusters`
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### POST `/api/clusters`
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- Body: `{ name, device_ids: [...] }`
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### GET `/api/clusters/:id`
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### DELETE `/api/clusters/:id`
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### POST `/api/clusters/:id/devices`
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### DELETE `/api/clusters/:id/devices/:deviceId`
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### PUT `/api/clusters/:id/devices/:deviceId/weight`
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### POST `/api/clusters/:id/flash`
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### POST `/api/clusters/:id/inference/start`
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### POST `/api/clusters/:id/inference/stop`
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---
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## 6. Camera / Media
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與 local-tool 相同,全部透過 tunnel forward:
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### GET `/api/camera/list`
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### POST `/api/camera/start`
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### POST `/api/camera/stop`
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### GET `/api/camera/stream` — MJPEG(透過 tunnel streaming)
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### POST `/api/media/upload/image`
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### POST `/api/media/upload/video`
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### POST `/api/media/upload/batch-images`
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### GET `/api/media/batch-images/:index`
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### POST `/api/media/seek`
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---
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## 7. System
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### GET `/api/system/health`
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- 雲端側:回 api-server 自己的健康 + tunnel 連線狀態
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```json
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{
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"success": true,
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"data": {
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"api_server": "ok",
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"tunnel_connected": true,
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"agent_last_seen_at": "..."
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}
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}
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```
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### GET `/api/system/info`
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- 版本資訊
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### GET `/healthz` — liveness / readiness(給 load balancer)
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- 純基礎設施健康檢查端點(非 `/api/*` 前綴),供 LB / orchestrator probe。
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- **DB 接入後行為(塊 5)**:PostgreSQL / Redis **啟用時會 ping**,任一 ping 失敗 → 回 **503**(讓 load balancer 知道此實例不健康、停止導流)。**未啟用的依賴略過檢查**(雛形未配 DB/Redis 時,這些依賴視為 not-applicable,不影響健康判定)。
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- Response(健康):`200 { "status": "ok" }`
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- Response(不健康):`503 { "status": "unavailable", "failed": ["postgres"] }`(`failed` 列出 ping 失敗的依賴)
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- 與 `GET /api/system/health` 的差異:`/healthz` 是基礎設施 probe(含 DB/Redis ping),`/api/system/health` 是業務層健康(api-server 自身 + tunnel 連線狀態)。
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---
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## 8. Converter
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### 8.1 Phase 1 stub(既有,保留)
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> 雛形 stub 路由;Phase 0.8 的真實整合改走 §8.2 `/api/conversion/*`,下列路由保留為 placeholder 待 Phase 1 視需要 supersede。
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#### POST `/api/converter/jobs`
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- Body:`{ source_model_key, target_chip, params? }`
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- Response:`{ job_id, status: "queued" }`
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#### GET `/api/converter/jobs`
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- List user 的 jobs
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#### GET `/api/converter/jobs/:id`
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- Job 狀態
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#### GET `/api/converter/jobs/:id/download`
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- 下載產物(presigned URL redirect)
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**詳細契約** → [`api-converter-contract.md`](api-converter-contract.md)
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### 8.2 Phase 0.8 — `/api/conversion/*`(轉檔功能整合)
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正式對接 kneron_model_converter scheduler + FAA delegated download:
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- `POST /api/conversion/init` — multipart streaming proxy 到 converter,建 job
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- `GET /api/conversion/{job_id}` — 查狀態(HTTP polling,frontend 間隔 2s)
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- `POST /api/conversion/{job_id}/promote-to-models` — 「加到模型庫」
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- `POST /api/conversion/{job_id}/download-token` — 換 browser 直連 FAA 的 delegated URL
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- `GET /api/conversion/active` — 查當前 user 是否有 active job
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**詳細契約** → [`api-conversion.md`](api-conversion.md)
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**內部設計** → [`../conversion.md`](../conversion.md)
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**ADR** → [`../adr/adr-014-conversion-integration.md`](../adr/adr-014-conversion-integration.md)
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---
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## 9. WebSocket
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### WS `/ws/devices/events`
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- 訂閱「裝置上下線」事件
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- Server push:
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```json
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{ "type": "device.connected", "device_id": "xxx", "at": "..." }
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{ "type": "device.disconnected", "device_id": "xxx", "at": "..." }
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```
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### WS `/ws/devices/:id/flash-progress`
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- 燒錄進度(透過 tunnel 從 local agent 取)
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### WS `/ws/devices/:id/inference`
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- 推論結果串流
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### WS `/ws/server-logs`
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- log broadcast(沿用 local-tool 的 broadcaster)
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### WS `/ws/system`
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- 系統事件(server:shutdown-imminent 等)
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### WS `/ws/clusters/:id/inference`
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### WS `/ws/clusters/:id/flash-progress`
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### WS `/ws/pairing/status`(新)
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- 訂閱 tunnel 連線狀態變化
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- Server push:
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```json
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{ "type": "tunnel.connected", "connected_at": "..." }
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{ "type": "tunnel.disconnected", "reason": "network_error", "at": "..." }
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```
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---
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## 10. Storage(雛形 LocalFS 代理)
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### GET `/storage/*filepath?expires=...&signature=...`
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- LocalFS 的假 presigned GET
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- 驗簽後讀檔回傳
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### PUT `/storage/*filepath?expires=...&signature=...`
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- LocalFS 的假 presigned PUT
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- 驗簽後收 body 寫檔
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**Phase 1**:直接由 S3 提供,不走 api-server。
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---
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## 11. 錯誤碼清單
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| Code | HTTP | 說明 |
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|------|------|------|
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| `UNAUTHORIZED` | 401 | 未認證或 token 無效 |
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| `FORBIDDEN` | 403 | 權限不足 |
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| `NOT_FOUND` | 404 | 資源不存在 |
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| `VALIDATION_FAILED` | 400 | 輸入驗證失敗 |
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| `CONFLICT` | 409 | 唯一性衝突(如重複註冊 active device serial、email 已存在)。DB unique violation 映射到此碼。|
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| `TUNNEL_DISCONNECTED` | 502 | Local agent 未連線 |
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| `TUNNEL_ERROR` | 502 | Tunnel 傳輸錯誤 |
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| `NOT_IMPLEMENTED` | 501 | 雛形尚未實作 |
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| `RATE_LIMITED` | 429 | 請求過快(Phase 1)|
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| `INTERNAL_ERROR` | 500 | 未預期錯誤 |
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| `SERVICE_UNAVAILABLE` | 503 | 後端依賴(PostgreSQL / Redis)連線失敗時的 fail-fast。持久資料相關 API(model / device / token)在 PG 不可用時回此碼,不回假資料。|
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> **DB 接入後的降級策略(fail-fast,2026-06-20 使用者拍板)**:
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> - **PostgreSQL 掉** → 持久資料相關 API(model / device / token)回 `503 SERVICE_UNAVAILABLE`,**不回假資料、不 fallback in-memory**(避免回傳過期/不一致資料)。
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> - **Redis 掉** → session 驗證失敗(請求視為未認證 → `401 UNAUTHORIZED`),**不自動 fallback in-memory session**(避免多機部署下各實例 session 不同步)。
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> - DB unique violation → `409 CONFLICT`(而非 500),讓前端能區分「衝突」與「未預期錯誤」。
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---
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## 12. Pagination
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對會變大的 list(models、devices、jobs)用 cursor-based:
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```
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GET /api/models?limit=50&cursor=...
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Response:
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{ "data": [...], "next_cursor": "..." | null }
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```
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雛形可先簡單回全部(in-memory);Phase 1 接 DB 時實作 cursor。
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---
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**雛形 MVP 清單**(必須有):
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- `GET /api/system/health`
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- `GET /api/pairing/status`
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- `GET /api/devices` + 透過 tunnel forward
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- `GET /api/models` + `POST /api/models/init` + `/finalize`(LocalFS)
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- `/storage/*` 代理
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- WS `/ws/devices/events`
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- WS `/ws/pairing/status`
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其他可以先 501 或 stub。
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