Seedance 舞蹈生成

支援多人編舞的進階舞蹈合成技術。可根據參考影片建立同步舞蹈影片。

身分驗證

若要透過 Doitong API 存取 Seedance，請使用您的 Doitong API 金鑰。請將其包含在 GraphQL mutation 或 REST API 標頭（Headers）中。

// GraphQL Header
{
  "Authorization": "Bearer YOUR_API_KEY"
}

// REST Header
"X-API-Key": "YOUR_API_KEY"

快速上手

只需幾分鐘即可開始使用 Seedance API。按照以下簡單步驟生成您的第一個 text to video。

第一步：取得 API 金鑰

註冊 Doitong 帳號並前往控制台生成 API 金鑰。

第二步：發起首次請求

參考下方的程式碼範例來發起您的第一次 API 呼叫。

curl -X POST https://api.doitong.com/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Idempotency-Key: unique-request-id-123" \
  -d '{
    "query": "mutation Generate($input: GenerateInput!) { generate(input: $input) { id status type provider url metadata creditCost } }",
    "variables": {
      "input": {
        "type": "VIDEO",
        "provider": "seedance",
        "input": {
          "text": "A serene landscape with mountains and a lake at sunset"
        },
        "options": {
          "duration": 5,
          "aspectRatio": "16:9"
        }
      }
    }
  }'

const response = await fetch('https://api.doitong.com/graphql', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY',
    'Idempotency-Key': 'unique-request-id-123'
  },
  body: JSON.stringify({
    query: `
      mutation Generate($input: GenerateInput!) {
        generate(input: $input) {
          id
          status
          type
          provider
          url
          metadata
          creditCost
        }
      }
    `,
    variables: {
      input: {
        type: 'VIDEO',
        provider: 'seedance',
        input: {
          text: 'A serene landscape with mountains and a lake at sunset'
        },
        options: {
          duration: 5,
          aspectRatio: '16:9'
        }
      }
    }
  })
});

const data = await response.json();
console.log('Result:', data.data.generate);

import requests
import json

url = "https://api.doitong.com/graphql"
headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
}

query = """
mutation Generate($input: GenerateInput!) {
  generate(input: $input) {
    id
    status
    type
    provider
    url
    metadata
    creditCost
  }
}
"""

variables = {
    "input": {
        "type": "VIDEO",
        "provider": "seedance",
        "input": {
            "text": "A serene landscape with mountains and a lake at sunset"
        },
        "options": {
            "duration": 5,
            "aspectRatio": "16:9"
        }
    }
}

response = requests.post(url, json={
    "query": query,
    "variables": variables
}, headers=headers)

data = response.json()
print("Result:", data["data"]["generate"])

mutation Generate($input: GenerateInput!) {
  generate(input: $input) {
    id
    status
    type
    provider
    url
    metadata
    creditCost
    createdAt
  }
}

# Variables
{
  "input": {
    "type": "VIDEO",
    "provider": "seedance",
    "input": {
      "text": "A serene landscape with mountains and a lake at sunset"
    },
    "options": {
      "duration": 5,
      "aspectRatio": "16:9",
      "version": "1.0-pro",
      "quality": "high"
    }
  }
}

價格方案

Seedance API 採用點數計費模式。點數消耗將根據生成內容的複雜程度與時長而定。

API 端點

Seedance API 可透過我們的統一 GraphQL 端點進行存取。

GraphQL 端點

POST https://api.doitong.com/graphql

REST 端點

POST https://api.doitong.com/v1/text_to_video

參數說明

Seedance API 請求的可用參數：

回應格式

所有 API 回應均遵循統一格式：

成功回應

{
  "data": {
    "generatevideo": {
      "id": "abc123xyz",
      "status": "processing",
      "url": null,
      "webhookUrl": "https://your-webhook.com/callback",
      "createdAt": "2024-01-01T00:00:00Z"
    }
  }
}

完成回應

{
  "data": {
    "generatevideo": {
      "id": "abc123xyz",
      "status": "completed",
      "url": "https://cdn.doitong.com/outputs/abc123xyz.mp4",
      "duration": 5,
      "createdAt": "2024-01-01T00:00:00Z"
    }
  }
}

錯誤處理

API 使用標準 HTTP 狀態碼，並回傳詳細的錯誤訊息。

常見錯誤代碼

錯誤回應格式

{
  "errors": [
    {
      "message": "Insufficient credits for this operation",
      "extensions": {
        "code": "INSUFFICIENT_CREDITS",
        "creditsRequired": 100,
        "creditsAvailable": 50
      }
    }
  ]
}

Webhooks

在您的 text to video 生成完成時接收即時通知。

設定 Webhooks

Include a <code>webhookUrl</code> parameter in your request to receive a POST notification when processing is complete.

Webhook 資料載體 (Payload)

{
  "id": "abc123xyz",
  "status": "completed",
  "url": "https://cdn.doitong.com/outputs/abc123xyz.mp4",
  "service": "seedance",
  "createdAt": "2024-01-01T00:00:00Z",
  "completedAt": "2024-01-01T00:01:00Z",
  "metadata": {
    "duration": 5,
    "width": 1920,
    "height": 1080
  }
}

Webhook 安全性

所有 Webhook 請求均包含用於驗證的簽名標頭：

X-Doitong-Signature: sha256=abc123...

速率限制

為確保公平使用與系統穩定，適用以下速率限制：

最佳實踐

1. 優化您的提示詞

撰寫清晰且具描述性的提示詞以獲得最佳效果：

• Be specific about visual elements, style, and mood
• Include details about lighting, camera angles, and composition
• Avoid contradictory or impossible requests

2. 處理非同步程序

生成過程是非同步的。請實作適當的輪詢（Polling）或 Webhooks：

// Polling example
async function pollStatus(jobId) {
  let status = 'processing';
  while (status === 'processing') {
    await sleep(2000); // Wait 2 seconds
    const result = await checkJobStatus(jobId);
    status = result.status;
  }
  return result;
}

3. 錯誤恢復

實作具備指數退避（Exponential Backoff）機制的重試邏輯：

async function retryWithBackoff(fn, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await fn();
    } catch (error) {
      if (i === maxRetries - 1) throw error;
      await sleep(Math.pow(2, i) * 1000);
    }
  }
}

4. 監控點數使用量

追蹤您的點數消耗情況以避免服務中斷：

• Check credit balance before large batch operations
• Set up alerts for low credit thresholds
• Implement credit-aware request queuing

準備好開始了嗎？

加入數千名開發者的行列，使用 Seedance API 創作精彩內容