CODEWITHSUNDEEP
c#azure-webjobsazure-webjobssdk
Micah Zoltu
Micah Zoltu

Reputation: 7422

Manual WebJob SDK function binding

I have a Service Bus queue that I want to consume off of. All of the samples I have found recommend writing something like this:

class Program
{
    private static String ServiceBusConnectionString = ConfigurationManager.ConnectionStrings["Microsoft.ServiceBus.ConnectionString"].ConnectionString;

    static void Main()
    {
        var jobHostConfiguration = new JobHostConfiguration
        {
            ServiceBusConnectionString = ServiceBusConnectionString,
        };
        var jobHost = new JobHost(jobHostConfiguration);
        jobHost.RunAndBlock();
    }
}

public class QueueItem
{
    public String Name;
    public Int64 Id;
}

public class Functions
{
    public void ProcessQueueItem([ServiceBusTrigger("queue-name")] QueueItem queueItem)
    {
        // TODO: process queue item
    }
}

The problem with the above code is that the queue name is hard coded in my program. I want to be able to get the queue name from configuration like I do with the queue connection string. Unfortunately, attributes can only be passed compile time constants, so I can't pass in some statically initialized string that comes from configuration.

I looked around a bit and was unable to find any other way to setup Service Bus function binding. Is it just not possible?

Upvotes: 0

Views: 910

Answers (1)

Victor Hurdugaci
Victor Hurdugaci

Reputation: 28425

You can use a custom INameResolver to accomplish what you want.

One of the official samples here covers exactly your scenario. Take a look the ShutdownMonitor function in Functions.cs and then at the ConfigNameResolver class.

Upvotes: 1

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