Visual Studio extension that scaffolds O24 OpenAPI microservices with the standard API / Domain / Infrastructure layout and CQRS command/query item templates.
Project template: O24 OpenAPI Service
Create a new solution from File → New → Project and search for O24 OpenAPI Service.
Generates three projects:
O24OpenAPI.{ServiceName}.API — ASP.NET Core API, MediatR, validation, sample endpoint
O24OpenAPI.{ServiceName}.Domain — domain entities and repository interfaces
O24OpenAPI.{ServiceName}.Infrastructure — EF Core, repositories, DI extensions
The wizard lets you choose optional scaffolding:
Directory.Build.props / Directory.Packages.props
Sample domain, repository, and entity configuration
Sample CQRS feature with optional workflow step
gRPC registration and config files
Uses O24OpenAPI NuGet packages and references shared monorepo projects O24OpenAPI.APIContracts and O24OpenAPI.GrpcContracts when created under the O24OpenAPI\ folder.
Item templates: CQRS Command & Query
Right-click a folder in an API project (e.g. Application/Features/Bills) → Add → New Item → search O24.
Template
Output
O24 CQRS Command
{Name}Command, {Name}Response, {Name}Handler
O24 CQRS Query
{Name}Query, {Name}Response, {Name}Handler
Enter a feature name such as CreateBill (without the Command/Query suffix). Optionally set a workflow step code; the handler will get [WorkflowStep("...")] on HandleAsync.
Requirements
Visual Studio 2022 (17.x)
ASP.NET and web development workload (for item templates under ASP.NET Core)
Getting started
Install the extension and restart Visual Studio.
New project: search O24 OpenAPI Service.
New item: right-click a feature folder → Add → New Item → search O24.
