HelpDesk

HelpDesk is a monorepo containing a SvelteKit frontend and a .NET 10 brokerless, event-driven microservice backend. .NET Aspire is the supported local full-stack orchestrator.

Repository layout

HelpDesk/
├── frontend/                     # SvelteKit application and server-only backend clients
├── backend/
│   ├── AppHost/                  # Aspire local full-stack orchestrator
│   ├── Common/                   # reusable infrastructure and helpers
│   ├── Contracts/                # public service event contracts
│   ├── Services/                 # UserIdentity, UserProfile, Notifications
│   └── Directory.Packages.props
├── HelpDesk.slnx
├── package.json                  # root workspace commands
└── pnpm-workspace.yaml

Backend services remain independently deployable. Cross-service business workflows use FastEndpoints remote events only: services do not reference another service implementation or call another service's REST API to complete internal work.

Frontend boundary

frontend/ is a SvelteKit application using adapter-node. It is the external-client/BFF boundary:

• browsers communicate with SvelteKit, not directly with backend service origins;
• typed openapi-fetch clients live under frontend/src/lib/server/api/, are server-only, and throw ApiError with preserved RFC problem details for non-success responses;
• backend origins are private runtime variables named IDENTITY_API_BASE_URL and PROFILE_API_BASE_URL; Aspire injects both into Vite—never expose them with a PUBLIC_ prefix;
• JWTs returned by UserIdentity are held by the BFF in the helpdesk_session cookie, with HttpOnly, SameSite=Lax, Path=/, a maximum seven-day lifetime, and Secure in production. Do not expose JWTs to browser JavaScript or browser storage.

The current frontend is a foundation/landing page with server API helpers. Registration, login, verification, profile editing, and profile-picture UI flows are not implemented. Deployment decisions for the verification-link destination and profile-picture serving/public URL remain unresolved; those decisions block shipping the corresponding UI flows.

Prerequisites and bootstrap

• .NET 10 SDK
• Node.js 26 or newer (.node-version selects 26.4.0)
• pnpm 11 or newer (packageManager selects 11.10.0 by default)
• a running Aspire-compatible container runtime for the MongoDB resource

Install the pinned pnpm version from the repository root:

# Prefer Corepack when the installed Node distribution provides it.
corepack enable
corepack prepare pnpm@11.10.0 --activate

# If Corepack is unavailable:
npm install --global pnpm@11.10.0

pnpm install --frozen-lockfile

Run locally

backend/AppHost/Program.cs is the sole supported local full-stack orchestrator. Start it through the root workspace command:

pnpm stack:dev

The Aspire 13.4.6 AppHost starts:

• an ephemeral, authenticated standalone MongoDB container using committed development credentials;
• UserIdentity, UserProfile, and Notifications;
• the Vite/SvelteKit frontend.

Aspire assigns application HTTP ports dynamically, displays resource endpoints in its dashboard, injects the MongoDB connection into all backend services, and injects the Identity/Profile API origins into Vite. MongoDB uses the fixed development endpoint localhost:27017 so backend tests can use the same Aspire-managed resource. Stop the stack with Ctrl+C.

This local MongoDB has no replica set, transaction support, keyfile, or host volume. Local startup does not use Compose, a root .env, or repository setup scripts. Data is ephemeral and is lost with the container. Its committed username/password and matching base connection strings are development-only; deployments must override ConnectionStrings__MongoDB.

UserIdentity and UserProfile expose non-production OpenAPI documents at /openapi/v1.json and Scalar at /scalar. Use the Aspire dashboard rather than assuming fixed localhost ports.

Development JWT keys

Matching development-only RSA values are committed in the base service settings:

• Identity private value: backend/Services/UserIdentity/appsettings.json
• Profile public value: backend/Services/UserProfile/appsettings.json

They allow the Aspire development stack to run without generating local keys. They are not production secrets and must not be reused for deployed environments. Standard ASP.NET Core configuration environment variables can override them as UserIdentity__Jwt__PrivateKeyPem and UserProfile__Jwt__PublicKey; overrides must remain a matching pair.

Commands

Root workspace commands:

pnpm backend:restore
pnpm backend:build
pnpm backend:build:release
pnpm backend:test
pnpm backend:format:check
pnpm stack:dev
pnpm frontend:dev
pnpm frontend:check
pnpm frontend:lint
pnpm frontend:format:check
pnpm frontend:test:unit
pnpm frontend:test:e2e
pnpm frontend:build
pnpm frontend:api:check
pnpm check:quick
pnpm check:full

Direct backend commands (start pnpm stack:dev first for MongoDB-backed tests):

dotnet restore HelpDesk.slnx
dotnet build HelpDesk.slnx
dotnet test HelpDesk.slnx -c Debug
dotnet format HelpDesk.slnx --verify-no-changes

Frontend commands (from frontend/):

pnpm dev
pnpm check
pnpm lint
pnpm format:check
pnpm test:unit
pnpm exec playwright install       # first-time browser installation
pnpm test:e2e
pnpm build

pnpm continues to manage frontend development and repository validation. pnpm frontend:dev starts only the frontend and is not an alternative full-stack workflow. Playwright builds and previews the frontend on port 4173 for end-to-end tests.

OpenAPI workflow

Start the stack with pnpm stack:dev. In the Aspire dashboard, copy the current HTTP URL for each Identity/Profile resource and append /openapi/v1.json. Export both complete document URLs before commands that fetch live specifications:

cd frontend
export IDENTITY_OPENAPI_URL='<identity-http-url>/openapi/v1.json'
export PROFILE_OPENAPI_URL='<profile-http-url>/openapi/v1.json'

pnpm api:refresh       # fetch and normalize live specs into openapi/*.json
pnpm api:generate      # generate src/lib/api/generated/*.d.ts from snapshots
pnpm api:check         # verify generated types match committed snapshots; no live services needed
pnpm api:check:live    # verify live specs, snapshots, and generated types all match

IDENTITY_OPENAPI_URL and PROFILE_OPENAPI_URL are required for api:refresh and api:check:live; there are no fixed-port defaults. Snapshot normalization removes the runtime-specific top-level servers entry so Aspire's dynamic ports do not create false changes. Commit refreshed snapshots and generated types together after an intentional backend API change.

Backend service map

Service	Responsibility	Public API
UserIdentity	Credentials, identity status, RSA JWT issuance, identity events	register, login, verify
UserProfile	Profile lifecycle and profile-picture backend capability	authenticated current-profile read/update and picture mutation
Notifications	Verification email jobs and SMTP/null delivery	none

The onboarding event flow is registration → profile creation and verification issuance → notification email → identity verification → profile activation. Contract projects under backend/Contracts/ are the only cross-service language; they contain service names and events, not persistence or service-local behavior.