图片处理机制介绍

// 存储桶名称，由 bucketname-appid 组成，appid 必须填入，可以在 COS 控制台查看存储桶名称。 https://console.cloud.tencent.com/cos5/bucket
let bucket = "examplebucket-1250000000";
//对象在存储桶中的位置标识符，即称对象键
let cosPath = "test.png"; 
//本地文件下载路径，如果文件不存在sdk会自动创建
let downliadPath = "本地文件路径"; 

let getRequest = new GetObjectRequest(bucket, cosPath, downliadPath);
// 添加图片处理参数
getRequest.addQuery("imageMogr2/rotate/70");
let task: DownloadTask = CosXmlBaseService.default().download(getRequest);
task.onResult = {
  // 下载成功回调
  onSuccess: (request, result: CosXmlDownloadTaskResult) => {
    // todo 下载成功后的逻辑
  },
  //下载失败回调
  onFail: (request, error: CosError) => {
    // todo 下载失败后的逻辑
  }
}
//开始下载
task.start();

// 存储桶名称，由 bucketname-appid 组成，appid 必须填入，可以在 COS 控制台查看存储桶名称。 https://console.cloud.tencent.com/cos5/bucket
let bucket = "examplebucket-1250000000";
//对象在存储桶中的位置标识符，即称对象键
let cosPath = "test.png"; 
//本地文件路径
let srcPath = "本地文件路径"; 

let putRequest = new PutObjectRequest(bucket, cosPath, srcPath);

// 设置图片处理参数
let picOperations: PicOperations = new PicOperations();
picOperations.is_pic_info = 1;
picOperations.rules.push(new PicOperationRule("image_ci.jpg", "imageMogr2/format/jpg"))
picOperations.rules.push(new PicOperationRule("image_ci_rotate.jpg", "imageMogr2/rotate/70", "ci-auditing-sample-1253960454"))
putRequest.setPicOperations(picOperations);

let task: UploadTask = CosXmlBaseService.default().upload(putRequest);
task.onResult = {
  // 上传成功回调
  onSuccess: (request, result: CosXmlUploadTaskResult) => {
    // result中picUploadResult参数包含了原图以及图片处理参数的内容
    // todo 上传成功后的逻辑
  },
  //上传失败回调
  onFail: (request, error: CosError) => {
    // todo 上传失败后的逻辑
  }
}
//开始上传
task.start();