Alibaba Cloud Model Studio：Paraformer即時語音辨識WebSocket API

Go

package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"time"

	"github.com/google/uuid"
	"github.com/gorilla/websocket"
)

const (
	wsURL     = "wss://dashscope.aliyuncs.com/api-ws/v1/inference/" // WebSocket伺服器位址
	audioFile = "asr_example.wav"                                   // 替換為您的音頻檔案路徑
)

var dialer = websocket.DefaultDialer

func main() {
	// 若沒有將API Key配置到環境變數，可將下行替換為：apiKey := "your_api_key"。不建議在生產環境中直接將API Key寫入程式碼到代碼中，以減少API Key泄露風險。
	apiKey := os.Getenv("DASHSCOPE_API_KEY")

	// 串連WebSocket服務
	conn, err := connectWebSocket(apiKey)
	if err != nil {
		log.Fatal("串連WebSocket失敗：", err)
	}
	defer closeConnection(conn)

	// 啟動一個goroutine來接收結果
	taskStarted := make(chan bool)
	taskDone := make(chan bool)
	startResultReceiver(conn, taskStarted, taskDone)

	// 發送run-task指令
	taskID, err := sendRunTaskCmd(conn)
	if err != nil {
		log.Fatal("發送run-task指令失敗：", err)
	}

	// 等待task-started事件
	waitForTaskStarted(taskStarted)

	// 發送待識別音頻檔案流
	if err := sendAudioData(conn); err != nil {
		log.Fatal("發送音頻失敗：", err)
	}

	// 發送finish-task指令
	if err := sendFinishTaskCmd(conn, taskID); err != nil {
		log.Fatal("發送finish-task指令失敗：", err)
	}

	// 等待任務完成或失敗
	<-taskDone
}

// 定義結構體來表示JSON資料
type Header struct {
	Action       string                 `json:"action"`
	TaskID       string                 `json:"task_id"`
	Streaming    string                 `json:"streaming"`
	Event        string                 `json:"event"`
	ErrorCode    string                 `json:"error_code,omitempty"`
	ErrorMessage string                 `json:"error_message,omitempty"`
	Attributes   map[string]interface{} `json:"attributes"`
}

type Output struct {
	Sentence struct {
		BeginTime int64  `json:"begin_time"`
		EndTime   *int64 `json:"end_time"`
		Text      string `json:"text"`
		Words     []struct {
			BeginTime   int64  `json:"begin_time"`
			EndTime     *int64 `json:"end_time"`
			Text        string `json:"text"`
			Punctuation string `json:"punctuation"`
		} `json:"words"`
	} `json:"sentence"`
}

type Payload struct {
	TaskGroup  string `json:"task_group"`
	Task       string `json:"task"`
	Function   string `json:"function"`
	Model      string `json:"model"`
	Parameters Params `json:"parameters"`
	Input  Input  `json:"input"`
	Output Output `json:"output,omitempty"`
	Usage  *struct {
		Duration int `json:"duration"`
	} `json:"usage,omitempty"`
}

type Params struct {
	Format                   string   `json:"format"`
	SampleRate               int      `json:"sample_rate"`
	DisfluencyRemovalEnabled bool     `json:"disfluency_removal_enabled"`
	LanguageHints            []string `json:"language_hints"`
}

type Input struct {
}

type Event struct {
	Header  Header  `json:"header"`
	Payload Payload `json:"payload"`
}

// 串連WebSocket服務
func connectWebSocket(apiKey string) (*websocket.Conn, error) {
	header := make(http.Header)
	header.Add("Authorization", fmt.Sprintf("bearer %s", apiKey))
	conn, _, err := dialer.Dial(wsURL, header)
	return conn, err
}

// 啟動一個goroutine非同步接收WebSocket訊息
func startResultReceiver(conn *websocket.Conn, taskStarted chan<- bool, taskDone chan<- bool) {
	go func() {
		for {
			_, message, err := conn.ReadMessage()
			if err != nil {
				log.Println("解析伺服器訊息失敗：", err)
				return
			}
			var event Event
			err = json.Unmarshal(message, &event)
			if err != nil {
				log.Println("解析事件失敗：", err)
				continue
			}
			if handleEvent(conn, event, taskStarted, taskDone) {
				return
			}
		}
	}()
}

// 發送run-task指令
func sendRunTaskCmd(conn *websocket.Conn) (string, error) {
	runTaskCmd, taskID, err := generateRunTaskCmd()
	if err != nil {
		return "", err
	}
	err = conn.WriteMessage(websocket.TextMessage, []byte(runTaskCmd))
	return taskID, err
}

// 產生run-task指令
func generateRunTaskCmd() (string, string, error) {
	taskID := uuid.New().String()
	runTaskCmd := Event{
		Header: Header{
			Action:    "run-task",
			TaskID:    taskID,
			Streaming: "duplex",
		},
		Payload: Payload{
			TaskGroup: "audio",
			Task:      "asr",
			Function:  "recognition",
			Model:     "paraformer-realtime-v2",
			Parameters: Params{
				Format:     "wav",
				SampleRate: 16000,
			},
			Input: Input{},
		},
	}
	runTaskCmdJSON, err := json.Marshal(runTaskCmd)
	return string(runTaskCmdJSON), taskID, err
}

// 等待task-started事件
func waitForTaskStarted(taskStarted chan bool) {
	select {
	case <-taskStarted:
		fmt.Println("任務開啟成功")
	case <-time.After(10 * time.Second):
		log.Fatal("等待task-started逾時，任務開啟失敗")
	}
}

// 發送音頻資料
func sendAudioData(conn *websocket.Conn) error {
	file, err := os.Open(audioFile)
	if err != nil {
		return err
	}
	defer file.Close()

	buf := make([]byte, 1024) // 假設100ms的音頻資料大約為1024位元組
	for {
		n, err := file.Read(buf)
		if n == 0 {
			break
		}
		if err != nil && err != io.EOF {
			return err
		}
		err = conn.WriteMessage(websocket.BinaryMessage, buf[:n])
		if err != nil {
			return err
		}
		time.Sleep(100 * time.Millisecond)
	}
	return nil
}

// 發送finish-task指令
func sendFinishTaskCmd(conn *websocket.Conn, taskID string) error {
	finishTaskCmd, err := generateFinishTaskCmd(taskID)
	if err != nil {
		return err
	}
	err = conn.WriteMessage(websocket.TextMessage, []byte(finishTaskCmd))
	return err
}

// 產生finish-task指令
func generateFinishTaskCmd(taskID string) (string, error) {
	finishTaskCmd := Event{
		Header: Header{
			Action:    "finish-task",
			TaskID:    taskID,
			Streaming: "duplex",
		},
		Payload: Payload{
			Input: Input{},
		},
	}
	finishTaskCmdJSON, err := json.Marshal(finishTaskCmd)
	return string(finishTaskCmdJSON), err
}

// 處理事件
func handleEvent(conn *websocket.Conn, event Event, taskStarted chan<- bool, taskDone chan<- bool) bool {
	switch event.Header.Event {
	case "task-started":
		fmt.Println("收到task-started事件")
		taskStarted <- true
	case "result-generated":
		if event.Payload.Output.Sentence.Text != "" {
			fmt.Println("識別結果：", event.Payload.Output.Sentence.Text)
		}
		if event.Payload.Usage != nil {
			fmt.Println("任務計費時間長度（秒）：", event.Payload.Usage.Duration)
		}
	case "task-finished":
		fmt.Println("任務完成")
		taskDone <- true
		return true
	case "task-failed":
		handleTaskFailed(event, conn)
		taskDone <- true
		return true
	default:
		log.Printf("預料之外的事件：%v", event)
	}
	return false
}

// 處理任務失敗事件
func handleTaskFailed(event Event, conn *websocket.Conn) {
	if event.Header.ErrorMessage != "" {
		log.Fatalf("任務失敗：%s", event.Header.ErrorMessage)
	} else {
		log.Fatal("未知原因導致任務失敗")
	}
}

// 關閉串連
func closeConnection(conn *websocket.Conn) {
	if conn != nil {
		conn.Close()
	}
}

C#

範例程式碼如下：

using System.Net.WebSockets;
using System.Text;
using System.Text.Json;
using System.Text.Json.Nodes;

class Program {
    private static ClientWebSocket _webSocket = new ClientWebSocket();
    private static CancellationTokenSource _cancellationTokenSource = new CancellationTokenSource();
    private static bool _taskStartedReceived = false;
    private static bool _taskFinishedReceived = false;
    // 若沒有將API Key配置到環境變數，可將下行替換為：private const string ApiKey="your_api_key"。不建議在生產環境中直接將API Key寫入程式碼到代碼中，以減少API Key泄露風險。
    private static readonly string ApiKey = Environment.GetEnvironmentVariable("DASHSCOPE_API_KEY") ?? throw new InvalidOperationException("DASHSCOPE_API_KEY environment variable is not set.");

    // WebSocket伺服器位址
    private const string WebSocketUrl = "wss://dashscope.aliyuncs.com/api-ws/v1/inference/";
    // 替換為您的音頻檔案路徑
    private const string AudioFilePath = "asr_example.wav";

    static async Task Main(string[] args) {
        // 建立WebSocket串連，配置headers進行鑒權
        _webSocket.Options.SetRequestHeader("Authorization", ApiKey);

        await _webSocket.ConnectAsync(new Uri(WebSocketUrl), _cancellationTokenSource.Token);

        // 啟動線程非同步接收WebSocket訊息
        var receiveTask = ReceiveMessagesAsync();

        // 發送run-task指令
        string _taskId = Guid.NewGuid().ToString("N"); // 產生32位隨機ID
        var runTaskJson = GenerateRunTaskJson(_taskId);
        await SendAsync(runTaskJson);

        // 等待task-started事件
        while (!_taskStartedReceived) {
            await Task.Delay(100, _cancellationTokenSource.Token);
        }

        // 讀取本地檔案，向伺服器發送待識別音頻流
        await SendAudioStreamAsync(AudioFilePath);

        // 發送finish-task指令結束任務
        var finishTaskJson = GenerateFinishTaskJson(_taskId);
        await SendAsync(finishTaskJson);

        // 等待task-finished事件
        while (!_taskFinishedReceived && !_cancellationTokenSource.IsCancellationRequested) {
            try {
                await Task.Delay(100, _cancellationTokenSource.Token);
            } catch (OperationCanceledException) {
                // 任務已被取消，退出迴圈
                break;
            }
        }

        // 關閉串連
        if (!_cancellationTokenSource.IsCancellationRequested) {
            await _webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Closing", _cancellationTokenSource.Token);
        }

        _cancellationTokenSource.Cancel();
        try {
            await receiveTask;
        } catch (OperationCanceledException) {
            // 忽略操作取消異常
        }
    }

    private static async Task ReceiveMessagesAsync() {
        try {
            while (_webSocket.State == WebSocketState.Open && !_cancellationTokenSource.IsCancellationRequested) {
                var message = await ReceiveMessageAsync(_cancellationTokenSource.Token);
                if (message != null) {
                    var eventValue = message["header"]?["event"]?.GetValue<string>();
                    switch (eventValue) {
                        case "task-started":
                            Console.WriteLine("任務開啟成功");
                            _taskStartedReceived = true;
                            break;
                        case "result-generated":
                            Console.WriteLine($"識別結果：{message["payload"]?["output"]?["sentence"]?["text"]?.GetValue<string>()}");
                            if (message["payload"]?["usage"] != null && message["payload"]?["usage"]?["duration"] != null) {
                                Console.WriteLine($"任務計費時間長度（秒）：{message["payload"]?["usage"]?["duration"]?.GetValue<int>()}");
                            }
                            break;
                        case "task-finished":
                            Console.WriteLine("任務完成");
                            _taskFinishedReceived = true;
                            _cancellationTokenSource.Cancel();
                            break;
                        case "task-failed":
                            Console.WriteLine($"任務失敗：{message["header"]?["error_message"]?.GetValue<string>()}");
                            _cancellationTokenSource.Cancel();
                            break;
                    }
                }
            }
        } catch (OperationCanceledException) {
            // 忽略操作取消異常
        }
    }

    private static async Task<JsonNode?> ReceiveMessageAsync(CancellationToken cancellationToken) {
        var buffer = new byte[1024 * 4];
        var segment = new ArraySegment<byte>(buffer);
        var result = await _webSocket.ReceiveAsync(segment, cancellationToken);

        if (result.MessageType == WebSocketMessageType.Close) {
            await _webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Closing", cancellationToken);
            return null;
        }

        var message = Encoding.UTF8.GetString(buffer, 0, result.Count);
        return JsonNode.Parse(message);
    }

    private static async Task SendAsync(string message) {
        var buffer = Encoding.UTF8.GetBytes(message);
        var segment = new ArraySegment<byte>(buffer);
        await _webSocket.SendAsync(segment, WebSocketMessageType.Text, true, _cancellationTokenSource.Token);
    }

    private static async Task SendAudioStreamAsync(string filePath) {
        using (var audioStream = File.OpenRead(filePath)) {
            var buffer = new byte[1024]; // 每次發送100ms的音頻資料
            int bytesRead;

            while ((bytesRead = await audioStream.ReadAsync(buffer, 0, buffer.Length)) > 0) {
                var segment = new ArraySegment<byte>(buffer, 0, bytesRead);
                await _webSocket.SendAsync(segment, WebSocketMessageType.Binary, true, _cancellationTokenSource.Token);
                await Task.Delay(100); // 間隔100ms
            }
        }
    }

    private static string GenerateRunTaskJson(string taskId) {
        var runTask = new JsonObject {
            ["header"] = new JsonObject {
                ["action"] = "run-task",
                ["task_id"] = taskId,
                ["streaming"] = "duplex"
            },
            ["payload"] = new JsonObject {
                ["task_group"] = "audio",
                ["task"] = "asr",
                ["function"] = "recognition",
                ["model"] = "paraformer-realtime-v2",
                ["parameters"] = new JsonObject {
                    ["format"] = "wav",
                    ["sample_rate"] = 16000,
                    ["disfluency_removal_enabled"] = false
                },
                ["input"] = new JsonObject()
            }
        };
        return JsonSerializer.Serialize(runTask);
    }

    private static string GenerateFinishTaskJson(string taskId) {
        var finishTask = new JsonObject {
            ["header"] = new JsonObject {
                ["action"] = "finish-task",
                ["task_id"] = taskId,
                ["streaming"] = "duplex"
            },
            ["payload"] = new JsonObject {
                ["input"] = new JsonObject()
            }
        };
        return JsonSerializer.Serialize(finishTask);
    }
}

PHP

範例程式碼目錄結構為：

my-php-project/

├── composer.json

├── vendor/

└── index.php

composer.json內容如下，相關依賴的版本號碼請根據實際情況自行決定：

{
    "require": {
        "react/event-loop": "^1.3",
        "react/socket": "^1.11",
        "react/stream": "^1.2",
        "react/http": "^1.1",
        "ratchet/pawl": "^0.4"
    },
    "autoload": {
        "psr-4": {
            "App\\": "src/"
        }
    }
}

index.php內容如下：

<?php

require __DIR__ . '/vendor/autoload.php';

use Ratchet\Client\Connector;
use React\EventLoop\Loop;
use React\Socket\Connector as SocketConnector;
use Ratchet\rfc6455\Messaging\Frame;

# 若沒有將API Key配置到環境變數，可將下行替換為：$api_key="your_api_key"。不建議在生產環境中直接將API Key寫入程式碼到代碼中，以減少API Key泄露風險。
$api_key = getenv("DASHSCOPE_API_KEY");
$websocket_url = 'wss://dashscope.aliyuncs.com/api-ws/v1/inference/'; // WebSocket伺服器位址
$audio_file_path = 'asr_example.wav'; // 替換為您的音頻檔案路徑

$loop = Loop::get();

// 建立自訂的連接器
$socketConnector = new SocketConnector($loop, [
    'tcp' => [
        'bindto' => '0.0.0.0:0',
    ],
    'tls' => [
        'verify_peer' => false,
        'verify_peer_name' => false,
    ],
]);

$connector = new Connector($loop, $socketConnector);

$headers = [
    'Authorization' => 'bearer ' . $api_key
];

$connector($websocket_url, [], $headers)->then(function ($conn) use ($loop, $audio_file_path) {
    echo "串連到WebSocket伺服器\n";

    // 啟動非同步接收WebSocket訊息的線程
    $conn->on('message', function($msg) use ($conn, $loop, $audio_file_path) {
        $response = json_decode($msg, true);

        if (isset($response['header']['event'])) {
            handleEvent($conn, $response, $loop, $audio_file_path);
        } else {
            echo "未知的訊息格式\n";
        }
    });

    // 監聽串連關閉
    $conn->on('close', function($code = null, $reason = null) {
        echo "串連已關閉\n";
        if ($code !== null) {
            echo "關閉代碼: " . $code . "\n";
        }
        if ($reason !== null) {
            echo "關閉原因：" . $reason . "\n";
        }
    });

    // 產生任務ID
    $taskId = generateTaskId();

    // 發送 run-task 指令
    sendRunTaskMessage($conn, $taskId);

}, function ($e) {
    echo "無法串連：{$e->getMessage()}\n";
});

$loop->run();

/**
 * 產生任務ID
 * @return string
 */
function generateTaskId(): string {
    return bin2hex(random_bytes(16));
}

/**
 * 發送 run-task 指令
 * @param $conn
 * @param $taskId
 */
function sendRunTaskMessage($conn, $taskId) {
    $runTaskMessage = json_encode([
        "header" => [
            "action" => "run-task",
            "task_id" => $taskId,
            "streaming" => "duplex"
        ],
        "payload" => [
            "task_group" => "audio",
            "task" => "asr",
            "function" => "recognition",
            "model" => "paraformer-realtime-v2",
            "parameters" => [
                "format" => "wav",
                "sample_rate" => 16000
            ],
            "input" => []
        ]
    ]);
    echo "準備發送run-task指令：" . $runTaskMessage . "\n";
    $conn->send($runTaskMessage);
    echo "run-task指令已發送\n";
}

/**
 * 讀取音頻檔案
 * @param string $filePath
 * @return bool|string
 */
function readAudioFile(string $filePath) {
    $voiceData = file_get_contents($filePath);
    if ($voiceData === false) {
        echo "無法讀取音頻檔案\n";
    }
    return $voiceData;
}

/**
 * 分割音頻資料
 * @param string $data
 * @param int $chunkSize
 * @return array
 */
function splitAudioData(string $data, int $chunkSize): array {
    return str_split($data, $chunkSize);
}

/**
 * 發送 finish-task 指令
 * @param $conn
 * @param $taskId
 */
function sendFinishTaskMessage($conn, $taskId) {
    $finishTaskMessage = json_encode([
        "header" => [
            "action" => "finish-task",
            "task_id" => $taskId,
            "streaming" => "duplex"
        ],
        "payload" => [
            "input" => []
        ]
    ]);
    echo "準備發送finish-task指令: " . $finishTaskMessage . "\n";
    $conn->send($finishTaskMessage);
    echo "finish-task指令已發送\n";
}

/**
 * 處理事件
 * @param $conn
 * @param $response
 * @param $loop
 * @param $audio_file_path
 */
function handleEvent($conn, $response, $loop, $audio_file_path) {
    static $taskId;
    static $chunks;
    static $allChunksSent = false;

    if (is_null($taskId)) {
        $taskId = generateTaskId();
    }

    switch ($response['header']['event']) {
        case 'task-started':
            echo "任務開始，發送音頻資料...\n";
            // 讀取音頻檔案
            $voiceData = readAudioFile($audio_file_path);
            if ($voiceData === false) {
                echo "無法讀取音頻檔案\n";
                $conn->close();
                return;
            }

            // 分割音頻資料
            $chunks = splitAudioData($voiceData, 1024);

            // 定義發送函數
            $sendChunk = function() use ($conn, &$chunks, $loop, &$sendChunk, &$allChunksSent, $taskId) {
                if (!empty($chunks)) {
                    $chunk = array_shift($chunks);
                    $binaryMsg = new Frame($chunk, true, Frame::OP_BINARY);
                    $conn->send($binaryMsg);
                    // 100ms後發送下一個片段
                    $loop->addTimer(0.1, $sendChunk);
                } else {
                    echo "所有資料區塊已發送\n";
                    $allChunksSent = true;

                    // 發送 finish-task 指令
                    sendFinishTaskMessage($conn, $taskId);
                }
            };

            // 開始發送音頻資料
            $sendChunk();
            break;
        case 'result-generated':
            $result = $response['payload']['output']['sentence'];
            echo "識別結果：" . $result['text'] . "\n";
            if (isset($response['payload']['usage']['duration'])) {
                echo "任務計費時間長度（秒）：" . $response['payload']['usage']['duration'] . "\n";
            }
            break;
        case 'task-finished':
            echo "任務完成\n";
            $conn->close();
            break;
        case 'task-failed':
            echo "任務失敗\n";
            echo "錯誤碼：" . $response['header']['error_code'] . "\n";
            echo "錯誤資訊：" . $response['header']['error_message'] . "\n";
            $conn->close();
            break;
        case 'error':
            echo "錯誤：" . $response['payload']['message'] . "\n";
            break;
        default:
            echo "未知事件：" . $response['header']['event'] . "\n";
            break;
    }

    // 如果所有資料已發送且任務已完成，關閉串連
    if ($allChunksSent && $response['header']['event'] == 'task-finished') {
        // 等待1秒以確保所有資料都已傳輸完畢
        $loop->addTimer(1, function() use ($conn) {
            $conn->close();
            echo "用戶端關閉串連\n";
        });
    }
}

Node.js

需安裝相關依賴：

npm install ws
npm install uuid

範例程式碼如下：

import fs from 'fs';
import WebSocket from 'ws';
import { v4 as uuidv4 } from 'uuid'; // 用於產生UUID

// 若沒有將API Key配置到環境變數，可將下行替換為：apiKey = 'your_api_key'。不建議在生產環境中直接將API Key寫入程式碼到代碼中，以減少API Key泄露風險。
const apiKey = process.env.DASHSCOPE_API_KEY;
const url = 'wss://dashscope.aliyuncs.com/api-ws/v1/inference/'; // WebSocket伺服器位址
const audioFile = 'asr_example.wav'; // 替換為您的音頻檔案路徑

// 產生32位隨機ID
const TASK_ID = uuidv4().replace(/-/g, '').slice(0, 32);

// 建立WebSocket用戶端
const ws = new WebSocket(url, {
  headers: {
    Authorization: `bearer ${apiKey}`
  }
});

let taskStarted = false; // 標記任務是否已啟動

// 串連開啟時發送run-task指令
ws.on('open', () => {
  console.log('串連到伺服器');
  sendRunTask();
});

// 接收訊息處理
ws.on('message', (data) => {
  const message = JSON.parse(data);
  switch (message.header.event) {
    case 'task-started':
      console.log('任務開始');
      taskStarted = true;
      sendAudioStream();
      break;
    case 'result-generated':
      console.log('識別結果：', message.payload.output.sentence.text);
      if (message.payload.usage) {
        console.log('任務計費時間長度（秒）：', message.payload.usage.duration);
      }
      break;
    case 'task-finished':
      console.log('任務完成');
      ws.close();
      break;
    case 'task-failed':
      console.error('任務失敗：', message.header.error_message);
      ws.close();
      break;
    default:
      console.log('未知事件：', message.header.event);
  }
});

// 如果沒有收到task-started事件，關閉串連
ws.on('close', () => {
  if (!taskStarted) {
    console.error('任務未啟動，關閉串連');
  }
});

// 發送run-task指令
function sendRunTask() {
  const runTaskMessage = {
    header: {
      action: 'run-task',
      task_id: TASK_ID,
      streaming: 'duplex'
    },
    payload: {
      task_group: 'audio',
      task: 'asr',
      function: 'recognition',
      model: 'paraformer-realtime-v2',
      parameters: {
        sample_rate: 16000,
        format: 'wav'
      },
      input: {}
    }
  };
  ws.send(JSON.stringify(runTaskMessage));
}

// 發送音頻流
function sendAudioStream() {
  const audioStream = fs.createReadStream(audioFile);
  let chunkCount = 0;

  function sendNextChunk() {
    const chunk = audioStream.read();
    if (chunk) {
      ws.send(chunk);
      chunkCount++;
      setTimeout(sendNextChunk, 100); // 每100ms發送一次
    }
  }

  audioStream.on('readable', () => {
    sendNextChunk();
  });

  audioStream.on('end', () => {
    console.log('音頻流結束');
    sendFinishTask();
  });

  audioStream.on('error', (err) => {
    console.error('讀取音頻檔案錯誤：', err);
    ws.close();
  });
}

// 發送finish-task指令
function sendFinishTask() {
  const finishTaskMessage = {
    header: {
      action: 'finish-task',
      task_id: TASK_ID,
      streaming: 'duplex'
    },
    payload: {
      input: {}
    }
  };
  ws.send(JSON.stringify(finishTaskMessage));
}

// 錯誤處理
ws.on('error', (error) => {
  console.error('WebSocket錯誤：', error);
});