Node.js

How to Generate an Azure Service Bus Shared Access Signature (SAS)

See more Azure Service Bus Examples

Demonstrates generating and using an Azure Service Bus Shared Access Signature (SAS).

Note: This example requires Chilkat v9.5.0.65 or greater.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    // Note: Requires Chilkat v9.5.0.65 or greater.

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // -------------------------------------------------------------------
    // Create a Shared Access Signature (SAS) token for Azure Service Bus.
    // -------------------------------------------------------------------

    var authSas = new chilkat.AuthAzureSAS();
    authSas.AccessKey = "AzureServiceBus_PrimaryKey";

    // The SAS token for Service Bus will look like this:
    // (The order of params will be different.  The order does not matter.)
    // sig=<signature-string>&se=<expiry>&skn=<keyName>&sr=<URL-encoded-resourceURI>

    // Specify the format of the string to sign.
    authSas.StringToSign = "resourceURI,expiry";

    // Create an expiry to 30 days in the future.
    var dtExpiry = new chilkat.CkDateTime();
    dtExpiry.SetFromCurrentSystemTime();
    dtExpiry.AddDays(30);
    authSas.SetTokenParam("expiry","se",dtExpiry.GetAsUnixTimeStr(true));

    // Set the skn (keyname)
    // This example uses the key "RootManageSharedAccessKey".  This give full access.
    // In a typical scenario, you would create a new Azure key (for the service bus)
    // in the Azure portal, such that the key has limited permissions.  This would
    // allow you to give the SAS token to others for specific access for some period of time.
    authSas.SetTokenParam("keyName","skn","RootManageSharedAccessKey");

    // Set the URL-encoded-resourceURI
    var sbResourceUri = new chilkat.StringBuilder();
    sbResourceUri.Append("https://<yournamespace>.servicebus.windows.net/");
    sbResourceUri.Encode("url","utf-8");
    authSas.SetTokenParam("resourceURI","sr",sbResourceUri.GetAsString());

    // Generate the SAS token.
    var sasToken = authSas.GenerateToken();
    if (authSas.LastMethodSuccess !== true) {
        console.log(authSas.LastErrorText);
        return;
    }

    console.log("SAS token: " + sasToken);

    // Save the SAS token to a file.
    // We can then use this pre-generated token for future Service Bus operations.
    var fac = new chilkat.FileAccess();
    fac.WriteEntireTextFile("qa_data/tokens/serviceBusSas.txt",sasToken,"utf-8",false);

}

chilkatExample();