// Bucket name, which consists of bucketname-appid (appid must be included), can be viewed in the COS console. 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
let cosPath = "exampleobject.txt"; 
//Local file path
let srcPath = "Local file path"; 

let putRequest = new PutObjectRequest(bucket, cosPath, srcPath);
// Set the single link rate limit in bit/s, for example, 1M/s
putRequest.addHeader("x-cos-traffic-limit", (1024 * 1024 * 8).toString());
let task: UploadTask = CosXmlBaseService.default().upload(putRequest);
// Start upload
task.start();

// Bucket name, which consists of bucketname-appid (appid must be included), can be viewed in the COS console. 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
let cosPath = "exampleobject.txt"; 
// Local file download path. If the file does not exist, the sdk will automatically create it.
let downliadPath = "Local file path"; 

let getRequest = new GetObjectRequest(bucket, cosPath, downliadPath);
// Set the single link rate limit in bit/s, for example, 1M/s
getRequest.addHeader("x-cos-traffic-limit", (1024 * 1024 * 8).toString());
let task: DownloadTask = CosXmlBaseService.default().download(getRequest);
// Start download
task.start();