PubSubDemo - Azure Service Bus with Aspire Interactive Commands

This sample demonstrates how to use Aspire's interaction service to build custom commands with interactive UI. It shows how to send messages to an Azure Service Bus emulator through a custom command in the Aspire dashboard.

Components

• AppHost: Orchestrates the Azure Service Bus emulator and worker service
• WorkerService: Processes messages from the Service Bus queue
• Interactive Command: Send messages to Service Bus through the Aspire dashboard

Architecture

graph LR
    A[Aspire Dashboard<br/>Custom Command<br/>'Publish Message'] --> B[Azure Service Bus<br/>Emulator<br/>- my-queue<br/>- dead-letter-queue]
    B --> C[Worker Service<br/>Message Processor]
    
    style A fill:#2196F3,stroke:#1976D2,stroke-width:2px,color:#fff
    style B fill:#FF9800,stroke:#F57C00,stroke-width:2px,color:#fff
    style C fill:#9C27B0,stroke:#7B1FA2,stroke-width:2px,color:#fff

Getting Started

Requirements

• .NET 9 SDK - https://dotnet.microsoft.com/en-us/download
• Docker - https://www.docker.com/get-started/
• Aspire CLI - https://learn.microsoft.com/en-us/dotnet/aspire/cli/install

Install Aspire CLI

Windows:

iex "& { $(irm https://aka.ms/aspire/get/install.ps1) }"

Linux/Mac:

curl -sSL https://aka.ms/aspire/get/install.sh | bash

Key Features

The interactive command demonstrates:

• Dropdown selection for available queues
• Text input for message content
• Visual feedback with success/error states
• Integration with Aspire's IInteractionService

Customization

Add more queues in AppHost.cs:

serviceBus.AddServiceBusQueue("new-queue");

Resources

• Aspire Documentation
• Aspire Interaction Service
• Custom Resource Commands
• Azure Service Bus Documentation
• Worker Services in .NET