// Bucket name, which is composed of bucketname-appid. You must include the appid. You can view the bucket name in the COS console at https://console.tencentcloud.com/cos5/bucket.
let bucket = "examplebucket-1250000000";
// The location identifier of an object in a bucket, also known as the object key (the object to be restored).
let archiveCosPath = "exampleobject.txt"; 

let request = new RestoreObjectRequest(bucket, archiveCosPath);
/**
 * For ARCHIVE or DEEP_ARCHIVE objects, you must specify the validity period for the restored temporary copy. The value must be an integer between 1 - 365, and the unit is "day".
 * You do not need to specify this parameter for Intelligent Tiering Archive Access or DEEP_ARCHIVE objects.
 */
request.days = 1;
/**
 * Restore mode. Valid values:
 * - Expedited: The expedited retrieval mode. A restore job can be completed within 1 - 5 minutes (only for ARCHIVE/Intelligent Tiering Archive Access objects).
 * - Standard: The standard retrieval mode. An ARCHIVE restore job is completed within 3 - 5 hours, and a DEEP_ARCHIVE restore takes 12 - 24 hours.
 * - Bulk: The batch retrieval mode. An ARCHIVE restore job is completed within 5 - 12 hours, and a DEEP_ARCHIVE restore takes 24 - 48 hours.
 *
 * If you do not specify a restore mode, the Standard retrieval mode is used by default.
*/
request.tier = 'Expedited';
try {
  let result = await CosXmlBaseService.default().restoreObject(request)
  // The result includes http headers and other information.
} catch (e) {
  // Exception handling
}