下载对象(Harmony SDK)

// 引入依赖包
import ObsClient, { GetObjectInput } from '@obs/esdk-obs-harmony';

// 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/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/intl/zh-cn/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html
  AccessKeyId: process.env.ACCESS_KEY_ID,
  SecretAccessKey: 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。
  // SecurityToken: process.env.SECURITY_TOKEN,
  // Server填写Bucket对应的Endpoint, 这里以华北-北京四为例，其他地区请按实际情况填写。
  Server: "https://obs.cn-north-4.myhuaweicloud.com",
});

async function getObject() {
  try {
    const params: GetObjectInput = {
      // 指定存储桶名称
      Bucket: "examplebucket",
      // 指定下载对象，此处以 example/objectname 为例。
      Key: 'example/objectname',
    };
    
    // 文本下载对象
    const result = await obsClient.getObject(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("Get object(%s) under the bucket(%s) successful!", params.Key, params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      console.log('Object Content: %s', result.InterfaceResult.Content); 
      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);
  }
}

getObject();

// 引入依赖包
import ObsClient, { GetObjectInput } from '@obs/esdk-obs-harmony';

// 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/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/intl/zh-cn/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html
  AccessKeyId: process.env.ACCESS_KEY_ID,
  SecretAccessKey: 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。
  // SecurityToken: process.env.SECURITY_TOKEN,
  // Server填写Bucket对应的Endpoint, 这里以华北-北京四为例，其他地区请按实际情况填写。
  Server: "https://obs.cn-north-4.myhuaweicloud.com",
});

async function getObject() {
  try {
    const params: GetObjectInput = {
      // 指定存储桶名称
      Bucket: "examplebucket",
      // 指定下载对象，此处以 example/objectname 为例。
      Key: 'example/objectname',
      // 指定下载范围
      Range: 'bytes=0-1000'
    };
    
    // 范围下载对象
    const result = await obsClient.getObject(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("Get object(%s) under the bucket(%s) successful!", params.Key, params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      console.log('Object Content: %s', result.InterfaceResult.Content); 
      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);
  }
}

getObject();

// 引入依赖包
import ObsClient, { GetObjectInput } from '@obs/esdk-obs-harmony';

// 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/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/intl/zh-cn/usermanual-ca/ca_01_0003.htmlhttps://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html
  AccessKeyId: process.env.ACCESS_KEY_ID,
  SecretAccessKey: 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。
  // SecurityToken: process.env.SECURITY_TOKEN,
  // Server填写Bucket对应的Endpoint, 这里以华北-北京四为例，其他地区请按实际情况填写。
  Server: "https://obs.cn-north-4.myhuaweicloud.com",
});

async function getObject() {
  try {
    const params: GetObjectInput = {
      // 指定存储桶名称
      Bucket: "examplebucket",
      // 指定下载对象，此处以 example/objectname 为例。
      Key: 'example/objectname',
      // 如果下载对象在给定的日期之后存在修改，才会下载成功。否则返回不带消息主题的304响应。
      IfModifiedSince: 'Wed, 04 Jul 2024 08:54:53 GMT'
    };
    
    // 限定条件下载对象
    const result = await obsClient.getObject(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("Get object(%s) under the bucket(%s) successful!", params.Key, params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      console.log('Object Content: %s', result.InterfaceResult.Content); 
      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);
  }
}

getObject();

// 引入依赖包
import ObsClient, { GetObjectInput } from '@obs/esdk-obs-harmony';

// 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/usermanual-ca/ca_01_0003.html
  AccessKeyId: process.env.ACCESS_KEY_ID,
  SecretAccessKey: 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
  // SecurityToken: process.env.SECURITY_TOKEN,
  // Server填写Bucket对应的Endpoint, 这里以华北-北京四为例，其他地区请按实际情况填写
  Server: "https://obs.cn-north-4.myhuaweicloud.com",
});

async function getObject() {
  try {
    const params: GetObjectInput = {
      // 指定存储桶名称
      Bucket: "examplebucket",
      // 指定下载对象，此处以 example/objectname 为例
      Key: 'example/objectname',
      // 对图片依次进行缩放、旋转
      ImageProcess: 'image/resize,m_fixed,w_100,h_100/rotate,90'
    };
    
    // 图片处理对象
    const result = await obsClient.getObject(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("Get object(%s) under the bucket(%s) successful!", params.Key, params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      console.log('Object Content: %s', result.InterfaceResult.Content); 
      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);
  }
}

getObject();