tencent cloud

// Bucket name in the format of `BucketName-APPID` (`APPID` is required), which can be viewed in the COS console at https://console.tencentcloud.com/cos5/bucket.
String bucket = "examplebucket-1250000000";
// Location identifier of the object in the bucket, i.e., the object key
String cosPath = "exampleobject";
// Bucket region abbreviation. For example, "ap-guangzhou" is the abbreviation of the Guangzhou region
String region = "COS_REGION";
try {
  await Cos().getDefaultService().deleteObject(
      bucket, cosPath,
      region: region
  );
} catch (e) {
  // An exception will be reported in case of failure. Process the business logic accordingly.
  print(e);
}