更新时间:2024-11-13 GMT+08:00

列举对象(Node.js SDK)

开发过程中,您有任何问题可以在github上提交issue

当完成一系列上传对象操作后,可能需要查看桶中包含哪些对象。以下代码展示如何列举指定桶中的对象:
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// 引入obs库
// 使用npm安装
const ObsClient = require("esdk-obs-nodejs");
// 使用源码安装
// var ObsClient = require('./lib/obs');

// 创建ObsClient实例
const obsClient = new ObsClient({
  // 推荐通过环境变量获取AKSK,这里也可以使用其他外部引入方式传入,如果使用硬编码可能会存在泄露风险
  // 您可以登录访问管理控制台获取访问密钥AK/SK,获取方式请参见https://support.huaweicloud.com/intl/zh-cn/usermanual-ca/ca_01_0003.html
  access_key_id: process.env.ACCESS_KEY_ID,
  secret_access_key: process.env.SECRET_ACCESS_KEY,
  // 【可选】如果使用临时AK/SK和SecurityToken访问OBS,同样建议您尽量避免使用硬编码,以降低信息泄露风险。您可以通过环境变量获取访问密钥AK/SK,也可以使用其他外部引入方式传入
  // security_token: process.env.SECURITY_TOKEN,
  // endpoint填写Bucket对应的Endpoint, 这里以中国-香港为例,其他地区请按实际情况填写
  server: "https://obs.ap-southeast-1.myhuaweicloud.com"
});

async function listObjects() {
  try {
    const params = {
      // 指定存储桶名称
      Bucket: "examplebucket",
    };
    // 列举桶内对象
    const result = await obsClient.listObjects(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("List objects under the bucket(%s) successful!", params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      for (let j = 0; j < result.InterfaceResult.Contents.length; j++) {
        const val = result.InterfaceResult.Contents[j];
        console.log('Content[%d]-OwnerId:%s, ETag:%s, Key:%s, LastModified:%s, Size:%d',
          j, val.Owner.ID, val.ETag, val.Key, val.LastModified, val.Size);
      };
      return;
    };
    console.log("An ObsError was found, which means your request sent to OBS was rejected with an error response.");
    console.log("Status: %d", result.CommonMsg.Status);
    console.log("Code: %s", result.CommonMsg.Code);
    console.log("Message: %s", result.CommonMsg.Message);
    console.log("RequestId: %s", result.CommonMsg.RequestId);
  } catch (error) {
    console.log("An Exception was found, which means the client encountered an internal problem when attempting to communicate with OBS, for example, the client was unable to access the network.");
    console.log(error);
  };
};

listObjects();
  • 上面的代码默认列举1000个对象(Object)。
  • 更丰富的列举功能,请参见列举对象