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API 規格文檔

概述

定義 Drama Ling 應用的完整 RESTful API 規格，基於 system_structure_design.json 中定義的14個功能特性和9個數據源設計。

API 設計原則

RESTful 設計標準

資源導向: API端點基於資源設計而非動作
HTTP動詞: 正確使用GET、POST、PUT、DELETE、PATCH
狀態碼: 使用標準HTTP狀態碼表示結果
無狀態: API設計為無狀態，不依賴server端session
版本控制: API版本控制策略 (如 /api/v1/)

API 安全原則

身份驗證: JWT Token認證機制
授權控制: Role-based權限控制
資料驗證: 嚴格的輸入資料驗證
速率限制: 防止API濫用的速率控制
HTTPS強制: 所有API強制使用HTTPS

回應格式標準

{
  "success": boolean,
  "data": object | array | null,
  "message": string,
  "error": {
    "code": string,
    "message": string,
    "details": object
  },
  "meta": {
    "timestamp": "ISO8601",
    "request_id": "string",
    "pagination": object
  }
}

認證與授權 API

用戶認證

POST /api/v1/auth/register
Content-Type: application/json

{
  "email": "user@example.com",
  "password": "securePassword123",
  "username": "dramatic_learner",
  "preferredLanguage": "en",
  "nativeLanguage": "zh-TW"
}

Response 201 Created
{
  "success": true,
  "data": {
    "userId": "550e8400-e29b-41d4-a716-446655440000",
    "username": "dramatic_learner",
    "email": "user@example.com",
    "accessToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
    "refreshToken": "550e8400-e29b-41d4-a716-446655440001",
    "expiresIn": 3600
  },
  "message": "User registered successfully",
  "meta": {
    "timestamp": "2024-09-05T15:30:00Z",
    "requestId": "550e8400-e29b-41d4-a716-446655440002"
  }
}

登入驗證

POST /api/v1/auth/login
{
  "email": "user@example.com", 
  "password": "securePassword123"
}

Token 更新

POST /api/v1/auth/refresh
Authorization: Bearer <refresh_token>

登出

POST /api/v1/auth/logout
Authorization: Bearer <access_token>

用戶資料管理 API

用戶資料 (UserProfile)

獲取用戶資料

GET /api/v1/users/profile
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "user_id": "USR_12345",
    "username": "dramatic_learner",
    "email": "user@example.com",
    "avatar_url": "https://cdn.example.com/avatars/12345.jpg",
    "level": "B1",
    "total_score": 15680,
    "streak_days": 15,
    "joined_date": "2024-01-15T08:00:00Z",
    "last_active": "2024-09-05T14:30:00Z",
    "preferences": {
      "target_language": "en",
      "native_language": "zh-TW",
      "difficulty_preference": "adaptive",
      "daily_goal_minutes": 30,
      "notifications_enabled": true,
      "theme": "light"
    },
    "subscription": {
      "plan": "premium",
      "status": "active",
      "expires_at": "2025-01-15T08:00:00Z"
    }
  }
}

更新用戶資料

PUT /api/v1/users/profile
Authorization: Bearer <access_token>
{
  "username": "new_username",
  "avatar_url": "https://cdn.example.com/avatars/new_avatar.jpg",
  "preferences": {
    "daily_goal_minutes": 45,
    "notifications_enabled": false
  }
}

用戶學習統計

GET /api/v1/users/stats
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "total_dialogues": 245,
    "total_study_time": 1280, // minutes
    "vocabulary_learned": 890,
    "vocabulary_mastered": 650,
    "scenarios_completed": 35,
    "achievements_unlocked": 18,
    "current_streak": 15,
    "longest_streak": 28,
    "weekly_progress": {
      "dialogues_this_week": 12,
      "minutes_this_week": 180,
      "goal_completion_rate": 0.85
    }
  }
}

學習內容 API

課程與場景 (Lesson)

獲取場景列表

GET /api/v1/lessons/scenarios
Authorization: Bearer <access_token>
Query Parameters:
- category: string (daily_life, social, emergency, professional)
- difficulty: string (A1, A2, B1, B2, C1, C2)  
- limit: integer (default: 20)
- offset: integer (default: 0)

Response 200 OK
{
  "success": true,
  "data": {
    "scenarios": [
      {
        "scenario_id": "SC_Restaurant_01",
        "title": "餐廳訂位",
        "description": "學習如何在餐廳預約座位和點餐",
        "category": "daily_life",
        "difficulty": "A2",
        "estimated_duration": 8, // minutes
        "thumbnail_url": "https://cdn.example.com/scenarios/restaurant.jpg",
        "vocabulary_count": 25,
        "completion_rate": 0.75,
        "user_completed": true,
        "user_score": 85,
        "unlock_condition": null,
        "is_premium": false
      }
    ],
    "pagination": {
      "total": 65,
      "page": 1,
      "per_page": 20,
      "total_pages": 4
    }
  }
}

獲取場景詳情

GET /api/v1/lessons/scenarios/{scenario_id}
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "scenario_id": "SC_Restaurant_01", 
    "title": "餐廳訂位",
    "description": "學習如何在餐廳預約座位和點餐",
    "category": "daily_life",
    "difficulty": "A2",
    "learning_objectives": [
      "學會預約餐廳座位",
      "掌握點餐相關詞彙",
      "練習詢問食材和偏好"
    ],
    "target_vocabulary": [
      {
        "word": "reservation",
        "phonetic": "/ˌrezəˈveɪʃən/",
        "translation": "預約",
        "definition": "an arrangement to have something kept for you"
      }
    ],
    "cultural_notes": "西式餐廳通常需要事先預約，特別是在熱門時段...",
    "estimated_duration": 8,
    "prerequisite_scenarios": ["SC_Greeting_01"],
    "user_progress": {
      "completed": true,
      "best_score": 85,
      "completion_count": 3,
      "last_completed": "2024-09-03T19:20:00Z"
    }
  }
}

詞彙管理 API

獲取詞彙列表

GET /api/v1/vocabulary
Authorization: Bearer <access_token>
Query Parameters:
- category: string (life, academic, business, etc.)
- difficulty: string (A1-C2)
- mastery_level: string (learning, practicing, mastered)
- limit: integer (default: 50)

Response 200 OK
{
  "success": true,
  "data": {
    "vocabulary": [
      {
        "vocab_id": "VOC_0001",
        "word": "restaurant", 
        "phonetic": "/ˈrestərɑːnt/",
        "part_of_speech": "noun",
        "definition": "A place where people pay to sit and eat meals",
        "translation": "餐廳",
        "difficulty": "A2",
        "frequency_rank": 1250,
        "user_mastery": {
          "level": "practicing", // learning, practicing, mastered
          "score": 75,
          "review_count": 5,
          "last_reviewed": "2024-09-03T10:15:00Z",
          "next_review": "2024-09-07T10:15:00Z"
        },
        "example_sentences": [
          {
            "english": "We made a reservation at the new restaurant.",
            "chinese": "我們在新餐廳訂了位。"
          }
        ]
      }
    ]
  }
}

詞彙複習API

GET /api/v1/vocabulary/review/daily
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "review_session_id": "REV_20240905_USR12345",
    "total_words": 15,
    "estimated_time": 5, // minutes
    "words": [
      {
        "vocab_id": "VOC_0001",
        "word": "restaurant",
        "review_type": "recognition", // recognition, recall, spelling
        "options": ["餐廳", "旅館", "商店", "學校"] // for recognition type
      }
    ]
  }
}

提交複習結果

POST /api/v1/vocabulary/review/submit
Authorization: Bearer <access_token>
{
  "review_session_id": "REV_20240905_USR12345",
  "results": [
    {
      "vocab_id": "VOC_0001",
      "user_answer": "餐廳",
      "is_correct": true,
      "response_time": 2.5, // seconds
      "confidence": 4 // 1-5 scale
    }
  ]
}

對話練習 API

對話系統 (Dialogue)

開始對話練習

POST /api/v1/dialogues/start
Authorization: Bearer <access_token>
{
  "scenario_id": "SC_Restaurant_01",
  "difficulty_override": "A2", // optional
  "target_vocabulary": ["reservation", "menu", "order"] // optional
}

Response 201 Created
{
  "success": true,
  "data": {
    "dialogue_id": "DLG_20240905_001",
    "scenario_id": "SC_Restaurant_01",
    "session_token": "session_token_here",
    "initial_context": {
      "setting": "高級餐廳內部，晚上8點",
      "your_role": "客人",
      "ai_role": "餐廳服務員",
      "objective": "成功預約並點餐"
    },
    "ai_message": {
      "message": "Good evening! Welcome to Milano Restaurant. Do you have a reservation?",
      "audio_url": "https://cdn.example.com/audio/dlg001_001.mp3",
      "suggestions": [
        "Yes, I have a reservation under Smith.",
        "No, but could we get a table for two?",
        "I'd like to make a reservation for tonight."
      ]
    }
  }
}

發送對話訊息

POST /api/v1/dialogues/{dialogue_id}/message
Authorization: Bearer <access_token>
{
  "message": "Yes, I have a reservation under Chen for 8 PM.",
  "message_type": "text", // text, audio
  "audio_url": "https://cdn.example.com/user_audio/msg001.mp3" // if audio
}

Response 200 OK
{
  "success": true,
  "data": {
    "ai_response": {
      "message": "Perfect! Mr. Chen, your table for two is ready. Right this way please.",
      "audio_url": "https://cdn.example.com/audio/dlg001_002.mp3",
      "analysis": {
        "grammar_score": 90,
        "semantic_score": 95, 
        "fluency_score": 85,
        "overall_score": 90,
        "feedback": "Excellent use of formal language for restaurant context!"
      },
      "suggestions": [
        "Thank you. Could we see the menu please?",
        "Great! What do you recommend today?",
        "Thank you. We'd like to start with drinks."
      ]
    },
    "dialogue_progress": {
      "turns_completed": 2,
      "estimated_turns_remaining": 6,
      "objectives_completed": ["greeting", "reservation_confirmation"],
      "objectives_remaining": ["ordering", "payment"]
    }
  }
}

獲取AI分析詳情

GET /api/v1/dialogues/{dialogue_id}/analysis
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "dialogue_id": "DLG_20240905_001",
    "overall_analysis": {
      "grammar_score": 88,
      "semantic_score": 92,
      "fluency_score": 85,
      "total_score": 88,
      "completion_percentage": 100
    },
    "detailed_feedback": [
      {
        "turn_number": 1,
        "user_message": "Yes, I have a reservation under Chen for 8 PM.",
        "analysis": {
          "grammar_issues": [],
          "semantic_appropriateness": "Excellent - appropriate formality level",
          "fluency_notes": "Natural and confident delivery",
          "suggestions": [],
          "vocabulary_used": [
            {
              "word": "reservation",
              "usage_correctness": "perfect",
              "context_appropriateness": "excellent"
            }
          ]
        }
      }
    ],
    "improvement_suggestions": [
      "Consider using more varied vocabulary for ordering",
      "Practice pronunciation of 'th' sounds"
    ],
    "vocabulary_progress": {
      "words_practiced": 8,
      "words_used_correctly": 7,
      "new_words_encountered": 3
    }
  }
}

結束對話

POST /api/v1/dialogues/{dialogue_id}/complete
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "dialogue_summary": {
      "dialogue_id": "DLG_20240905_001",
      "duration": 420, // seconds
      "turns_completed": 8,
      "final_score": 88,
      "objectives_achieved": 4,
      "objectives_total": 4,
      "vocabulary_practiced": 12,
      "experience_gained": 150,
      "score_gained": 75
    },
    "rewards": {
      "experience_points": 150,
      "score_points": 75,
      "achievements_unlocked": ["First Perfect Dialogue"],
      "vocabulary_progress": {
        "words_advanced": 3,
        "words_mastered": 1
      }
    }
  }
}

任務系統 API

任務管理 (Task & TaskReward)

獲取可用任務

GET /api/v1/tasks
Authorization: Bearer <access_token>
Query Parameters:
- type: string (daily, weekly, achievement, challenge)
- status: string (available, in_progress, completed)

Response 200 OK
{
  "success": true,
  "data": {
    "tasks": [
      {
        "task_id": "TASK_DAILY_001",
        "type": "daily",
        "title": "完成3次對話練習",
        "description": "今天完成任意3次對話練習以獲得獎勵",
        "objectives": [
          {
            "objective_id": "OBJ_001",
            "description": "完成對話練習",
            "target_value": 3,
            "current_value": 1,
            "unit": "次"
          }
        ],
        "rewards": {
          "experience": 100,
          "score": 50,
          "special_items": ["daily_streak_bonus"]
        },
        "deadline": "2024-09-05T23:59:59Z",
        "status": "in_progress",
        "created_at": "2024-09-05T00:00:00Z"
      }
    ]
  }
}

獲取任務詳情

GET /api/v1/tasks/{task_id}
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "task_id": "TASK_WEEKLY_001",
    "type": "weekly",
    "title": "週練習大師",
    "description": "本週完成20次對話練習並達到平均85分",
    "long_description": "挑戰自己在本週內完成20次高品質的對話練習...",
    "objectives": [
      {
        "objective_id": "OBJ_001", 
        "description": "完成對話練習",
        "target_value": 20,
        "current_value": 8,
        "unit": "次"
      },
      {
        "objective_id": "OBJ_002",
        "description": "平均分數達標",
        "target_value": 85,
        "current_value": 87.5,
        "unit": "分"
      }
    ],
    "rewards": {
      "experience": 500,
      "score": 300,
      "special_items": ["premium_scenario_unlock"],
      "achievements": ["weekly_master"]
    },
    "progress_percentage": 40,
    "deadline": "2024-09-08T23:59:59Z",
    "difficulty": "medium"
  }
}

領取任務獎勵

POST /api/v1/tasks/{task_id}/claim_reward
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "rewards_claimed": {
      "experience": 500,
      "score": 300,
      "special_items": ["premium_scenario_unlock"],
      "achievements": ["weekly_master"]
    },
    "updated_user_stats": {
      "total_experience": 15680,
      "total_score": 8950,
      "level": "B1+",
      "achievements_count": 19
    }
  }
}

排行榜與競爭 API

排行榜系統 (Leaderboard)

獲取排行榜

GET /api/v1/leaderboard
Authorization: Bearer <access_token>
Query Parameters:
- type: string (global, weekly, friends, regional)
- category: string (overall, dialogue_count, vocabulary_mastered)
- limit: integer (default: 50)

Response 200 OK
{
  "success": true,
  "data": {
    "leaderboard_type": "global",
    "category": "overall", 
    "period": "all_time",
    "updated_at": "2024-09-05T15:30:00Z",
    "user_rank": {
      "rank": 1247,
      "score": 15680,
      "percentile": 78.5
    },
    "top_users": [
      {
        "rank": 1,
        "user_id": "USR_VIP_001",
        "username": "LanguageMaster",
        "avatar_url": "https://cdn.example.com/avatars/vip001.jpg",
        "score": 45680,
        "level": "C2",
        "country": "TW",
        "streak_days": 365,
        "badges": ["yearly_champion", "perfectionist"]
      }
    ],
    "nearby_users": [
      // Users around current user's rank
    ]
  }
}

好友排行榜

GET /api/v1/leaderboard/friends
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "friends_ranking": [
      {
        "rank": 1,
        "user_id": "USR_12346", 
        "username": "StudyBuddy",
        "avatar_url": "https://cdn.example.com/avatars/12346.jpg",
        "score": 18950,
        "level": "B2",
        "status": "online",
        "recent_activity": "完成了商務會議場景 - 2小時前"
      }
    ],
    "current_user": {
      "rank": 3,
      "score": 15680,
      "score_difference": -3270, // difference from rank 1
      "rank_change": 1 // compared to last week
    }
  }
}

訂閱與購買 API

訂閱管理 (Subscription)

獲取訂閱方案

GET /api/v1/subscriptions/plans
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "plans": [
      {
        "plan_id": "PLAN_BASIC",
        "name": "基礎版",
        "description": "解鎖基礎功能，享受無廣告體驗",
        "price": {
          "monthly": {
            "amount": 199,
            "currency": "TWD",
            "original_price": 199
          },
          "yearly": {
            "amount": 1980,
            "currency": "TWD", 
            "original_price": 2388,
            "discount_percentage": 17
          }
        },
        "features": [
          "無限對話練習",
          "無廣告體驗",
          "基礎AI分析",
          "雲端同步"
        ],
        "limitations": [
          "僅基礎和社交場景",
          "不含語音識別"
        ]
      }
    ],
    "current_subscription": {
      "plan_id": "PLAN_PREMIUM",
      "status": "active",
      "expires_at": "2025-01-15T08:00:00Z",
      "auto_renewal": true,
      "payment_method": "credit_card"
    }
  }
}

訂閱方案

POST /api/v1/subscriptions/subscribe
Authorization: Bearer <access_token>
{
  "plan_id": "PLAN_PREMIUM",
  "billing_cycle": "yearly", // monthly, yearly
  "payment_method_id": "pm_1234567890",
  "auto_renewal": true
}

Response 201 Created
{
  "success": true,
  "data": {
    "subscription_id": "SUB_20240905_001",
    "plan_id": "PLAN_PREMIUM", 
    "status": "active",
    "started_at": "2024-09-05T15:30:00Z",
    "expires_at": "2025-09-05T15:30:00Z",
    "next_billing_date": "2025-09-05T15:30:00Z",
    "amount_paid": 3999,
    "currency": "TWD"
  }
}

內購系統 (Purchase)

獲取付費內容

GET /api/v1/store/content
Authorization: Bearer <access_token>
Query Parameters:
- category: string (scenario_pack, expert_course, premium_content)
- price_range: string (0-100, 100-500, 500+)

Response 200 OK
{
  "success": true,
  "data": {
    "content_packs": [
      {
        "content_id": "PACK_TRAVEL_001",
        "type": "scenario_pack",
        "title": "旅遊場景包",
        "description": "包含機場、飯店、觀光等15個實用旅遊場景",
        "price": {
          "amount": 149,
          "currency": "TWD",
          "original_price": 199,
          "discount_percentage": 25
        },
        "content_preview": {
          "scenarios_count": 15,
          "estimated_hours": 8,
          "difficulty_range": "A2-B2",
          "preview_scenario": "SC_AIRPORT_001"
        },
        "thumbnail_url": "https://cdn.example.com/packs/travel.jpg",
        "user_owned": false,
        "special_offer": {
          "expires_at": "2024-09-10T23:59:59Z",
          "offer_text": "限時75折優惠！"
        }
      }
    ]
  }
}

購買內容

POST /api/v1/store/purchase
Authorization: Bearer <access_token>
{
  "content_id": "PACK_TRAVEL_001",
  "payment_method_id": "pm_1234567890"
}

Response 201 Created
{
  "success": true,
  "data": {
    "purchase_id": "PUR_20240905_001",
    "content_id": "PACK_TRAVEL_001",
    "amount_paid": 149,
    "currency": "TWD",
    "purchased_at": "2024-09-05T15:45:00Z",
    "content_unlocked": {
      "scenarios": ["SC_AIRPORT_001", "SC_HOTEL_001", "..."],
      "access_expires": null // permanent access
    }
  }
}

廣告系統 (AdImpression)

獲取廣告獎勵機會

GET /api/v1/ads/opportunities
Authorization: Bearer <access_token>

Response 200 OK
{
  "success": true,
  "data": {
    "available_ads": [
      {
        "ad_id": "AD_REWARD_001",
        "type": "video",
        "duration": 30, // seconds
        "reward": {
          "type": "extra_dialogue",
          "quantity": 2,
          "description": "額外2次對話練習機會"
        },
        "cooldown_remaining": 0, // seconds until next ad
        "daily_limit_remaining": 3
      }
    ]
  }
}

觀看廣告獲得獎勵

POST /api/v1/ads/watch
Authorization: Bearer <access_token>
{
  "ad_id": "AD_REWARD_001",
  "watch_duration": 30, // seconds actually watched
  "completion_status": "completed" // completed, skipped, error
}

Response 200 OK
{
  "success": true,
  "data": {
    "reward_granted": {
      "type": "extra_dialogue",
      "quantity": 2,
      "expires_at": "2024-09-06T15:45:00Z"
    },
    "next_ad_available_at": "2024-09-05T16:15:00Z"
  }
}

錯誤處理

標準錯誤碼

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "輸入資料驗證失敗",
    "details": {
      "field": "email",
      "reason": "invalid_format"
    }
  }
}

常見錯誤碼

UNAUTHORIZED (401): 未授權存取
FORBIDDEN (403): 權限不足
NOT_FOUND (404): 資源不存在
VALIDATION_ERROR (400): 資料驗證失敗
RATE_LIMIT_EXCEEDED (429): 超過速率限制
INTERNAL_SERVER_ERROR (500): 伺服器內部錯誤
SERVICE_UNAVAILABLE (503): 服務暫時不可用

訂閱相關錯誤

SUBSCRIPTION_REQUIRED: 需要訂閱才能存取
SUBSCRIPTION_EXPIRED: 訂閱已過期
PAYMENT_FAILED: 付款處理失敗
CONTENT_NOT_PURCHASED: 內容未購買

API 版本控制與部署

版本控制策略

URL版本控制: /api/v1/, /api/v2/
向後相容: 新版本保持向後相容性
廢棄通知: 提前6個月通知API廢棄
多版本支援: 同時支援2-3個版本
版本文檔: 每個版本維護獨立文檔

環境配置

# 開發環境
API_BASE_URL=https://dev-api.dramaling.com
API_VERSION=v1

# 測試環境  
API_BASE_URL=https://staging-api.dramaling.com
API_VERSION=v1

# 生產環境
API_BASE_URL=https://api.dramaling.com
API_VERSION=v1

效能考量

回應時間: 95%的API請求在200ms內回應
快取策略: 靜態內容使用CDN，動態內容使用Redis
資料庫優化: 適當的索引和查詢優化
負載平衡: 水平擴展API服務器
監控告警: API效能和錯誤率監控

待完成任務

高優先級

完善所有API端點的詳細規格和範例
設計API的認證和授權機制
建立API文檔的自動生成和維護流程
實現API的錯誤處理和驗證邏輯

中優先級

設計API的快取和效能優化策略
建立API的測試套件和自動化測試
規劃API的版本控制和遷移策略
設計API的監控和分析系統

低優先級

研究GraphQL作為REST API的補充
探索Real-time API (WebSocket) 的應用場景
建立API的開發者工具和SDK
設計第三方整合的API授權機制

最後更新: 2024年9月5日
負責人: 待分配
審查週期: 每兩週檢討一次

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API 規格文檔

概述

API 設計原則

RESTful 設計標準

API 安全原則

回應格式標準

認證與授權 API

用戶認證

登入驗證

Token 更新

登出

用戶資料管理 API

用戶資料 (UserProfile)

獲取用戶資料

更新用戶資料

用戶學習統計

學習內容 API

課程與場景 (Lesson)

獲取場景列表

獲取場景詳情

詞彙管理 API

獲取詞彙列表

詞彙複習API

提交複習結果

對話練習 API

對話系統 (Dialogue)

開始對話練習

發送對話訊息

獲取AI分析詳情

結束對話

任務系統 API

任務管理 (Task & TaskReward)

獲取可用任務

獲取任務詳情

領取任務獎勵

排行榜與競爭 API

排行榜系統 (Leaderboard)

獲取排行榜

好友排行榜

訂閱與購買 API

訂閱管理 (Subscription)

獲取訂閱方案

訂閱方案

內購系統 (Purchase)

獲取付費內容

購買內容

廣告系統 (AdImpression)

獲取廣告獎勵機會

觀看廣告獲得獎勵

錯誤處理

標準錯誤碼

常見錯誤碼

訂閱相關錯誤

API 版本控制與部署

版本控制策略

環境配置

效能考量

待完成任務

高優先級

中優先級

低優先級

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