azureservicebus - Unable to Connect to Azure Service Bus Emulator in Docker from C# (404 Error) - Stack Overflow

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I’m trying to connect to the Azure Service Bus emulator running in a Docker container. The container is up and running successfully, and the logs indicate everything is fine. I’ve verified that I can connect to it via telnet from the host machine.

However, I’m unable to connect using my C# application. I keep receiving a 404 error when attempting to connect. I’ve been trying to figure out the correct connection string, but I’m stuck.

Here’s the AuthorizationRules from the ASCE's Config.json file:

"AuthorizationRules": [
  {
    "KeyName": "RootManageSharedAccessKey",
    "PrimaryKey": "ZDVkM2UyYzUtMTVhMi00NmYwLWJjOWUtYjk5OGRkMmIwZTFh",
    "Claims": [
      "Manage",
      "Send",
      "Listen"
    ]
  }
]

The PrimaryKey is just a local, made-up value for testing.

My Client Code:

using Azure.Messaging.ServiceBus.Administration;
using System;
using System.Threading.Tasks;

public class Program
{
    private const string connectionString =
        "Endpoint=sb://localhost;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=ZDVkM2UyYzUtMTVhMi00NmYwLWJjOWUtYjk5OGRkMmIwZTFh;UseDevelopmentEmulator=true;";

    public static async Task Main()
    {
        var adminClient = new ServiceBusAdministrationClient(connectionString);

        try
        {
            var queues = adminClient.GetQueuesAsync();
            await foreach (var queue in queues)
            {
                Console.WriteLine($"Queue: {queue.Name}");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Failed to list queues: {ex.Message}");
        }
    }
}

Error:

I keep getting a 404 error when I try to run the program. I’ve verified that the emulator is up and running via the Docker logs, and I can telnet into the emulator’s endpoint, so the issue seems to be with the connection string or how the client is configured.

What I’ve tried:

• I’ve checked the AuthorizationRules in the Config.json file for the Azure Service Bus Emulator.
• The connection string seems to be formatted correctly, but I’m still getting the error.
• I’ve verified that the emulator is running on the correct port and can be reached from the host machine via telnet.

Can anyone help me with the correct connection string format or any other suggestions on how to connect to the Azure Service Bus emulator from C#?

I’m trying to connect to the Azure Service Bus emulator running in a Docker container. The container is up and running successfully, and the logs indicate everything is fine. I’ve verified that I can connect to it via telnet from the host machine.

However, I’m unable to connect using my C# application. I keep receiving a 404 error when attempting to connect. I’ve been trying to figure out the correct connection string, but I’m stuck.

Here’s the AuthorizationRules from the ASCE's Config.json file:

"AuthorizationRules": [
  {
    "KeyName": "RootManageSharedAccessKey",
    "PrimaryKey": "ZDVkM2UyYzUtMTVhMi00NmYwLWJjOWUtYjk5OGRkMmIwZTFh",
    "Claims": [
      "Manage",
      "Send",
      "Listen"
    ]
  }
]

The PrimaryKey is just a local, made-up value for testing.

My Client Code:

using Azure.Messaging.ServiceBus.Administration;
using System;
using System.Threading.Tasks;

public class Program
{
    private const string connectionString =
        "Endpoint=sb://localhost;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=ZDVkM2UyYzUtMTVhMi00NmYwLWJjOWUtYjk5OGRkMmIwZTFh;UseDevelopmentEmulator=true;";

    public static async Task Main()
    {
        var adminClient = new ServiceBusAdministrationClient(connectionString);

        try
        {
            var queues = adminClient.GetQueuesAsync();
            await foreach (var queue in queues)
            {
                Console.WriteLine($"Queue: {queue.Name}");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Failed to list queues: {ex.Message}");
        }
    }
}

Error:

I keep getting a 404 error when I try to run the program. I’ve verified that the emulator is up and running via the Docker logs, and I can telnet into the emulator’s endpoint, so the issue seems to be with the connection string or how the client is configured.

What I’ve tried:

• I’ve checked the AuthorizationRules in the Config.json file for the Azure Service Bus Emulator.
• The connection string seems to be formatted correctly, but I’m still getting the error.
• I’ve verified that the emulator is running on the correct port and can be reached from the host machine via telnet.

Can anyone help me with the correct connection string format or any other suggestions on how to connect to the Azure Service Bus emulator from C#?

• c#
• azureservicebus
• azure-servicebus-topics

Share Improve this question Follow asked 2 days ago Sam CarletonSam Carleton 1,42077 gold badges2626 silver badges5555 bronze badges 4

• Can you share us the error stack trace? – JRichardsz Commented 2 days ago
• This exact question got raised in GitHub and got an answer. Not sure why you didn't link to the question in the repo. – Sean Feldman Commented 2 days ago
• @SeanFeldman didn't know linking was an option, should i be putting the link here to the github or add a link in github to here? – Sam Carleton Commented yesterday
• Having a link from SO post to the GH issue usually works the best for those that find the SO question. – Sean Feldman Commented yesterday

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1 Answer 1

Sorted by: Reset to default 2

The development emulator does not support the Administration ATOM service, which is used by ServiceBusAdministrationClient. As a consequence, there is no current way to dynamically manage entities under the namespace. (see: Known limitations)

The emulator only supports the AMQP API used by ServiceBusClient and the senders, receivers, and processors that it spawn.

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