JavaScript

Configure Azure SAS Authentication for REST

Demonstrates Rest.SetAuthAzureSas, which associates an AuthAzureSAS provider so requests are authorized with an Azure Shared Access Signature token.

Background. A SAS token grants time-limited, permission-scoped access to Azure Storage resources without exposing the account key on the wire. Use SAS authorization when a query-token approach is preferred over Shared Key headers.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var rest = new CkRest();
var bTls = true;
var bAutoReconnect = true;
success = rest.Connect("example.com",443,bTls,bAutoReconnect);
if (success == false) {
    console.log(rest.LastErrorText);
    return;
}

//  Configure Azure Shared Access Signature (SAS) authentication.  Provide the account access key
//  and the SAS token query parameters; Chilkat adds the SAS token to each request.
var azSas = new CkAuthAzureSAS();
//  Normally you would not hard-code secrets in source.  You should instead obtain them from an
//  interactive prompt, environment variable, or a secrets vault.
azSas.AccessKey = "BASE64_ACCOUNT_ACCESS_KEY";

//  Associate the provider with the REST object.
success = rest.SetAuthAzureSas(azSas);
if (success == false) {
    console.log(rest.LastErrorText);
    return;
}

var responseText = rest.FullRequestNoBody("GET","/mycontainer/myblob.txt");
if (rest.LastMethodSuccess == false) {
    console.log(rest.LastErrorText);
    return;
}

console.log(responseText);