Domain Service Template

This repository provides a fully templatized .NET solution for building domain-driven microservices. It includes an API service and a Message service, with communication between them handled via NServiceBus. The template is designed for rapid customization to your own domain using a single PowerShell script.

Features

• API Service: A RESTful API for your domain, ready for extension.
• Message Service: A background service for handling domain events and asynchronous processing.
• NServiceBus Integration: Reliable messaging between API and Message services.
• Cosmos DB Ready: Easily configure your Cosmos DB account via environment variables.
• Configurable Ports: Set custom ports for API and Message services.
• Easy Domain Customization: Rename all namespaces, folders, and configuration values to your domain with a single script.

Getting Started

1. Clone the Repository

git clone <this-repo-url>
cd DomainServiceTemplate

2. Apply Your Domain

Run the PowerShell script in the root directory to set your domain name, short name, ports, and Cosmos DB account:

Run from powershell without having the project open.

# Example usage:
.\Apply-DomainTemplate.ps1 -DomainName "YourDomainName" -DomainShortName "yourshortname" -ApiPort "5001" -MsgPort "5002"

• DomainName: PascalCase name for your domain (e.g., OrderManagement)
• DomainShortName: Lowercase or short name (e.g., order)
• ApiPort: (Optional) Port for the API service (default: 5271)
• MsgPort: (Optional) Port for the Message service (default: 5281)

This script will:

• Replace all template variables in file contents
• Rename folders and files to match your domain
• Update configuration and workflow files

3. Configure Environment Variables

Set your Cosmos DB account and other secrets as needed. For example, update appsettings.Development.json with your AccountKey and other values.

4. Build and Run

Use the provided Dockerfiles or run locally with .NET CLI:

dotnet build src/Api/Api.csproj
dotnet run --project src/Api/Api.csproj

dotnet build src/Message/Message.csproj
dotnet run --project src/Message/Message.csproj

5. CI/CD

The template includes GitHub Actions workflows for building and deploying both services as container apps. Ports and image names are fully configurable.

Architecture

• API Service: Handles HTTP requests, domain commands, and publishes events.
• Message Service: Listens for domain events and processes them asynchronously.
• NServiceBus: Used for reliable messaging between services.
• Cosmos DB: Used as the default persistence layer (configurable).

Best Practices

• Use the PowerShell script for all renaming and configuration to avoid manual errors.
• Keep secrets and connection strings out of source control.
• Extend the API and Message services by adding new commands, events, and handlers in their respective folders.
• Use the provided CI/CD workflows as a starting point for your own automation.

License

See License.xml for details.

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For questions or contributions, please open an issue or pull request.