> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tokenlab.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# 获取音乐状态

> 获取音乐生成任务的状态和结果

轮询此端点以检查音乐生成任务的状态。

<Info>
  如果创建响应中包含 `poll_url`，请优先直接调用该 URL 轮询。`/v1/tasks/{id}` 是音乐任务的固定状态端点，`id` 与 `task_id` 应视为同一个异步任务标识。

  如果该任务已不存在或无法再从公开任务记录中查询到，TokenLab 会返回 `async_task_not_found`，并附带消息 `Task not found or no longer available.`
</Info>

## 路径参数

<ParamField path="id" type="string" required>
  音乐生成任务 ID。
</ParamField>

## 响应

<ResponseField name="id" type="string">
  任务 ID。
</ResponseField>

<ResponseField name="task_id" type="string">
  返回时，作为异步任务标识的别名。
</ResponseField>

<ResponseField name="poll_url" type="string">
  创建响应提供时，优先使用的轮询 URL。
</ResponseField>

<ResponseField name="status" type="string">
  任务状态：`pending`、`processing`、`completed` 或 `failed`。
</ResponseField>

<ResponseField name="progress" type="integer">
  可选进度值。仅在任务提供真实进度时返回；请使用 `status` 判断任务是否完成。
</ResponseField>

<ResponseField name="audio_url" type="string">
  音频文件的下载 URL（完成时）。
</ResponseField>

<ResponseField name="video_url" type="string">
  带可视化效果的视频版本 URL（完成时）。
</ResponseField>

<ResponseField name="title" type="string">
  生成的歌曲标题。
</ResponseField>

<ResponseField name="lyrics" type="string">
  生成或提供的歌词。
</ResponseField>

<ResponseField name="error" type="string">
  错误信息（失败时）。
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl "https://api.tokenlab.sh/v1/tasks/ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
    -H "Authorization: Bearer sk-your-api-key"
  ```

  ```python Python theme={null}
  import requests
  import time

  task_id = "ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"

  while True:
      response = requests.get(
          f"https://api.tokenlab.sh/v1/tasks/{task_id}",
          headers={"Authorization": "Bearer sk-your-api-key"}
      )
      result = response.json()

      if result["status"] == "completed":
          print(f"Audio URL: {result['audio_url']}")
          break
      elif result["status"] == "failed":
          print(f"Error: {result['error']}")
          break

      time.sleep(5)
  ```

  ```javascript JavaScript theme={null}
  const taskId = 'ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';

  async function pollForMusic() {
    while (true) {
      const response = await fetch(
        `https://api.tokenlab.sh/v1/tasks/${taskId}`,
        { headers: { 'Authorization': 'Bearer sk-your-api-key' } }
      );

      const result = await response.json();

      if (result.status === 'completed') {
        console.log(`Audio URL: ${result.audio_url}`);
        return result.audio_url;
      } else if (result.status === 'failed') {
        throw new Error(result.error);
      }

      await new Promise(r => setTimeout(r, 5000));
    }
  }
  ```

  ```go Go theme={null}
  package main

  import (
      "encoding/json"
      "fmt"
      "net/http"
      "time"
  )

  func main() {
      taskID := "ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"

      for {
          req, _ := http.NewRequest("GET",
              fmt.Sprintf("https://api.tokenlab.sh/v1/tasks/%s", taskID), nil)
          req.Header.Set("Authorization", "Bearer sk-your-api-key")

          client := &http.Client{}
          resp, _ := client.Do(req)

          var result map[string]interface{}
          json.NewDecoder(resp.Body).Decode(&result)
          resp.Body.Close()

          if result["status"] == "completed" {
              fmt.Printf("Audio URL: %s\n", result["audio_url"])
              break
          } else if result["status"] == "failed" {
              fmt.Printf("Error: %s\n", result["error"])
              break
          }

          time.Sleep(5 * time.Second)
      }
  }
  ```

  ```php PHP theme={null}
  <?php
  $taskId = 'ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';

  while (true) {
      $ch = curl_init("https://api.tokenlab.sh/v1/tasks/{$taskId}");

      curl_setopt_array($ch, [
          CURLOPT_RETURNTRANSFER => true,
          CURLOPT_HTTPHEADER => [
              'Authorization: Bearer sk-your-api-key'
          ]
      ]);

      $response = curl_exec($ch);
      curl_close($ch);

      $result = json_decode($response, true);

      if ($result['status'] === 'completed') {
          echo "Audio URL: {$result['audio_url']}\n";
          break;
      } elseif ($result['status'] === 'failed') {
          echo "Error: {$result['error']}\n";
          break;
      }

      sleep(5);
  }
  ```
</RequestExample>

<ResponseExample>
  ```json Response (Completed) theme={null}
  {
    "id": "ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "task_id": "ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "poll_url": "/v1/tasks/ldtask_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "status": "completed",
    "audio_url": "https://cdn.example.com/music/abc123.mp3",
    "video_url": "https://cdn.example.com/music/abc123.mp4",
    "title": "Night Drive",
    "lyrics": "[Verse 1]\nDriving through the night..."
  }
  ```
</ResponseExample>