腾讯云cos上传至文件夹

const COS = require('cos-js-sdk-v5');

// 初始化COS实例
const cos = new COS({
  SecretId: 'YOUR_SECRET_ID',
  SecretKey: 'YOUR_SECRET_KEY',
});

// 上传文件到指定文件夹
function uploadFile(file, bucket, region, folder) {
  const key = `${folder}/${file.name}`;
  cos.putObject({
    Bucket: bucket,
    Region: region,
    Key: key,
    Body: file,
    onProgress: function(progressData) {
      console.log(JSON.stringify(progressData));
    }
  }, (err, data) => {
    if (err) {
      console.error('上传失败:', err);
    } else {
      console.log('上传成功:', data);
    }
  });
}

// 使用示例
const fileInput = document.getElementById('file-input');
fileInput.addEventListener('change', (event) => {
  const file = event.target.files[0];
  uploadFile(file, 'your-bucket-name', 'your-region', 'your-folder-name');
});