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SluijsensandClaude Sonnet 5 274946dbff Adds SlpModularCms.Api.Slave for local master/slave dev testing (Unit 1)

Relocates ModuleOrchestrator, ServiceCollectionExtensions, and
ApiPrefixConvention from SlpModularCms.Api into SlpModularCms.Core.Hosting
so a new Master-less SlpModularCms.Api.Slave host project (ports 5285/7222)
can share the same bootstrap code without duplicating it. This lets a
developer run a master instance and a slave instance side by side locally
to test the master/slave connection, without touching the existing
master/slave protocol itself.

Relocates the two orchestrator/convention test files from
Modules.Identity.Tests to Core.Tests, dropping an incidental
ProjectReference to SlpModularCms.Api that existed only for those tests.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

2026-07-04 02:07:35 +02:00

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Component Dependencies — Local Dev Master/Slave Setup

Dependency Matrix

Component	Depends On	Depended On By
`SlpModularCms.Core` (incl. new `Core.Hosting`)	—	`SlpModularCms.Api`, `SlpModularCms.Api.Slave`, `Modules.Master`, `Modules.Availability`, `Modules.Identity`
`SlpModularCms.Modules.Master`	`Core`	`SlpModularCms.Api` only
`SlpModularCms.Modules.Availability`	`Core`	`SlpModularCms.Api`, `SlpModularCms.Api.Slave`
`SlpModularCms.Modules.Identity`	`Core`	`SlpModularCms.Api`, `SlpModularCms.Api.Slave`
`SlpModularCms.Api` (master host)	`Core`, `Modules.Master`, `Modules.Availability`, `Modules.Identity`	— (top-level executable)
`SlpModularCms.Api.Slave` (new, slave host)	`Core`, `Modules.Availability`, `Modules.Identity`	— (top-level executable)
`frontend`	Backend HTTP API (either instance, via `VITE_API_BASE_URL`)	—

Communication Patterns

Build-time: Standard MSBuild ProjectReference — no new communication mechanism. The exclusion of Modules.Master from SlpModularCms.Api.Slave is achieved purely by omitting that ProjectReference, which in turn keeps Modules.Master.dll out of the slave's build output, which in turn means ModuleOrchestrator.DiscoverModules (running inside the slave process) never finds it.
Runtime — Master ↔ Slave: Unchanged existing HTTP-based protocol between Modules.Master's SlaveApiClient (master side) and Modules.Availability's MasterController (slave side), authenticated via a per-instance API key. This feature does not touch that protocol — it only makes it possible to point one local instance at another.
Runtime — Frontend ↔ Backend: Standard HTTPS/CORS, VITE_API_BASE_URL selects which backend instance the frontend dev server talks to; Cors:AllowedOrigins in the target instance's appsettings must include the calling frontend's origin.

Data Flow (Local Setup)

graph LR
    FE["frontend (Vite dev server)"]
    ApiM["SlpModularCms.Api<br/>:5284 / :7221"]
    ApiS["SlpModularCms.Api.Slave<br/>:5285 / :7222"]
    DBM["Local DB: SlpModularCmsLocal_Master"]
    DBS["Local DB: SlpModularCmsLocal_Slave"]

    FE -- "VITE_API_BASE_URL (master mode)" --> ApiM
    FE -- "VITE_API_BASE_URL (slave mode)" --> ApiS
    ApiM -- "master/slave protocol (API key)" --> ApiS
    ApiM --> DBM
    ApiS --> DBS

    classDef fe fill:#f6e05e,stroke:#c05621,stroke-width:1px,color:#000;
    classDef api fill:#63b3ed,stroke:#2b6cb0,stroke-width:1px,color:#000;
    classDef db fill:#9ae6b4,stroke:#2f855a,stroke-width:1px,color:#000;
    class FE fe;
    class ApiM,ApiS api;
    class DBM,DBS db;

Text alternative: The frontend dev server can point at either the master (5284/7221) or slave (5285/7222) backend depending on which env mode is active. The master backend talks to the slave over the existing master/slave protocol. Each backend uses its own local database, keeping master and slave data isolated.

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Component Dependencies — Local Dev Master/Slave Setup

Dependency Matrix

Communication Patterns

Data Flow (Local Setup)

3.0 KiB

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