Overview

This document provides an overview of SDK code samples related to generating pre-signed object links.

SDK API Reference

For the parameters and method descriptions of all the APIs in the SDK, please see SDK API Reference.

Generating a Pre-signed Object Link

Sample 1. Generating a pre-signed upload link

try {
   String bucket = "examplebucket-1250000000"; // Bucket name
   String cosPath = "exampleobject"; // Location identifier of the object in the bucket.
   String method = "PUT"; // HTTP request method
   PresignedUrlRequest presignedUrlRequest = new PresignedUrlRequest(bucket
           , cosPath) {
       @Override
       public RequestBodySerializer getRequestBody()
               throws CosXmlClientException {
           // Used to calculate a pre-signed URL for requests like `PUT` that require a request body
           return RequestBodySerializer.string("text/plain",
                   "this is test");
       }
   };
   presignedUrlRequest.setRequestMethod(method);
    String urlWithSign = cosXmlService.getPresignedURL(presignedUrlRequest);
} catch (CosXmlClientException e) {
   e.printStackTrace();
}

Note：

For more samples, please visit GitHub.

Sample 2. Generating a pre-signed download link

try {
   String bucket = "examplebucket-1250000000"; // Bucket name
   String cosPath = "exampleobject"; // Location identifier of the object in the bucket.
   String method = "GET"; // HTTP request method
   PresignedUrlRequest presignedUrlRequest = new PresignedUrlRequest(bucket
           , cosPath);
   presignedUrlRequest.setRequestMethod(method);
    String urlWithSign = cosXmlService.getPresignedURL(presignedUrlRequest);
} catch (CosXmlClientException e) {
   e.printStackTrace();
}

Note：

For more samples, please visit GitHub.