Creates CoreEx anti-corruption layer adapters with typed HTTP clients and unit tests.
npx skills add https://github.com/Avanade/CoreEx --skill coreex-adapter-avanade
Please help me install this Agent Skill. Skill: coreex-adapter Source: https://github.com/Avanade/CoreEx/tree/main/.github/skills/coreex-adapter Command: npx skills add https://github.com/Avanade/CoreEx --skill coreex-adapter-avanade
IXxxAdapter interfaces in Application/Adapters/{ExternalDomain}/ returning Result/Result<T> instead of throwing exceptions. - Typed HTTP Client & Implementation: Scaffolds XxxHttpClient classes with response.ToResultAsync() status mapping, [ScopedService]-registered adapter implementations, and AddTypedHttpClient registration in Program.cs. - Replication & Sync Adapters: Supports event-driven IXxxSyncAdapter implementations for EF-based local data synchronization alongside synchronous real-time adapters. - HTTP Client Unit Tests: Generates MockHttpClientFactory-based tests covering success (2xx), server error (5xx), and business error (422/ProblemDetails) responses per endpoint. - Use Case: You need your checkout service to reserve inventory in an external Products API. The Skill produces the IProductAdapter interface, a ProductsHttpClient, the ProductAdapter implementation with event publication, and unit tests verifying each HTTP response path. ## Quick Start Ask the AI to create a CoreEx adapter for an external system, for example: create a Products adapter with get, reserve, and cancel operations backed by a typed HTTP client.High-intent search queries and answers about installing and using this skill.
Define a domain-idiomatic interface in Application/Adapters/{ExternalDomain}/ returning Result or Result<T>, then implement it in Infrastructure/Adapters/{ExternalDomain}/ with [ScopedService<IXxxAdapter>]. HTTP calls go through a typed client class, never HttpClient directly in the adapter.
Use UnitTestEx MockHttpClientFactory with WithGenericTester<EntryPoint>, register the client via AddTypedHttpClient in the test EntryPoint, and mock responses per status code. Cover success (2xx), server error (5xx), and business error (422/ProblemDetails) for each endpoint.
A synchronous adapter makes real-time HTTP calls to the external system, optionally combined with local EF reads and event publication. A replication sync adapter (IXxxSyncAdapter) performs event-driven upsert/delete into the local EF store. They use separate interfaces and implementations.
Do not use an adapter for repositories within the same domain — use a CoreEx repository instead. Application services that consume adapters and event subscriber hosts that drive sync adapters are also separate concerns handled by their own skills.
Compensation operations like rolling back a reservation after a failed checkout must not be aborted by an already-cancelled request token. Passing CancellationToken.None ensures the compensation completes even when the original request was cancelled.
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