视频文案提取 API Node.js 教程：提交、轮询和读取文字结果

const API_BASE = 'https://api.videosays.com';
const apiKey = process.env.VIDEOSAYS_API_KEY;

if (!apiKey) throw new Error('VIDEOSAYS_API_KEY is required');

const createResponse = await fetch(API_BASE + '/api/v1/transcribe', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': apiKey,
    'Idempotency-Key': crypto.randomUUID(),
  },
  body: JSON.stringify({
    input: 'https://www.douyin.com/video/REPLACE_WITH_PUBLIC_ID',
    options: { language: 'auto', sourceMode: 'auto', duplicatePolicy: 'reuse' },
  }),
});

if (![200, 202].includes(createResponse.status)) {
  throw new Error('Create failed: ' + createResponse.status);
}

let task = await createResponse.json();

while (!['completed', 'failed', 'cancelled'].includes(task.status)) {
  const waitSeconds = task.retryAfterSeconds ?? 5;
  await new Promise((resolve) => setTimeout(resolve, waitSeconds * 1000));

  const pollResponse = await fetch(
    API_BASE + '/api/v1/transcribe/' + task.taskId,
    { headers: { 'X-API-Key': apiKey } },
  );
  if (!pollResponse.ok) throw new Error('Poll failed: ' + pollResponse.status);
  task = await pollResponse.json();
}

if (task.status !== 'completed') {
  throw new Error(task.error?.message ?? 'Transcription did not complete');
}

console.log(task.result.text);

const response = await fetch('https://api.videosays.com/api/v1/batches', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': process.env.VIDEOSAYS_API_KEY,
    'Idempotency-Key': crypto.randomUUID(),
  },
  body: JSON.stringify({
    items: publicVideoLinks,
    options: { language: 'auto', sourceMode: 'auto', duplicatePolicy: 'reuse' },
  }),
});

if (response.status !== 202) {
  throw new Error('Batch create failed: ' + response.status);
}

const batch = await response.json();
console.log(batch.batchId);