How Do I Access Image Processing with a URL?

Accessing Images Not Publicly Readable

To access images that cannot be read by the public, add image processing parameters during signature calculation to create a signed temporary URL.

A Java SDK sample code is provided as follows. For details, see SDK Overview.

     
          // Here uses the endpoint corresponding to the CN-Hong Kong region as an example.
String endPoint = "https://obs.ap-southeast-1.myhuaweicloud.com"; 
// Hard-coded or plaintext AK and SK are risky. For security purposes, encrypt your AK and SK and store them in the configuration file or environment variables.
// In this example, the AK and SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY.
// Obtain an AK and SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY");
 
// Create an ObsClient instance.
ObsClient obsClient = new ObsClient(ak, sk, endPoint); 

// Set the URL validity period to 3600 seconds.
long expireSeconds = 3600L;   
TemporarySignatureRequest request = new TemporarySignatureRequest(HttpMethodEnum.GET, expireSeconds); request.setBucketName("bucketname"); 
request.setObjectKey("objectname");  

// Configure image processing parameters.
Map<String,Object> queryParams = new HashMap<String, Object>(); 
queryParams.put("x-image-process", "image/resize,m_fixed,w_100,h_100/rotate,100"); request.setQueryParams(queryParams);  

// Obtain the URL that supports image processing.
TemporarySignatureResponse response = obsClient.createTemporarySignature(request);
System.out.println("Getting object using temporary signature url:"); 
System.out.println("\t" + response.getSignedUrl());