Performing a Binary Download

If you have any questions during development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the API Reference.

Sample code:

// Create an instance of ObsClient.
var obsClient = new ObsClient({
    // Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables AccessKeyID and SecretAccessKey.
    // The front-end code does not have the process environment variable, so you need to use a module bundler like webpack to define the process variable.
    // Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
    access_key_id: process.env.AccessKeyID,
    secret_access_key: process.env.SecretAccessKey,
    // Replace the example endpoint with the actual one in your case.
    server: 'https://obs.eu-west-101.myhuaweicloud.eu'
});
 
obsClient.getObject({ 
       Bucket : 'bucketname', 
       Key : 'objectname', 
       SaveByType : 'arraybuffer' 
}, function (err, result) { 
       if(err){ 
              console.error('Error-->' + err); 
       }else{ 
              console.log('Status-->' + result.CommonMsg.Status); 
              if(result.CommonMsg.Status < 300 && result.InterfaceResult){ 
                     // Obtain the object length.
                     console.log('Object Length:\n'); 
                     console.log(result.InterfaceResult.Content.byteLength); 
              }
       } 
});

• Set the SaveByType parameter to arraybuffer to use binary download.
• In the returned result of a binary download, InterfaceResult.Content is an instance of ArrayBuffer.