All five authorization gates audited only their deny branch, so /beheer/audit could answer "who was turned away" but never "who changed this" — for a register whose integrity is the product, the wrong half. Nothing recorded the flag toggle, either org-template write, the admin case or upload delete, the three brief transitions, or the besluit; the comment claiming endpoints log their own effect held for two of the eight. Each gate now computes the decision once, audits it, and then acts. The row is written by the gate rather than the endpoint, so a new admin endpoint cannot be added that forgets to audit itself. Same reasoning for the brief: every transition already funnelled through LogBrief for its log line, so the audit row goes there too — submit/approve/reject/send in one place, with the transition's own outcome as the decision, so a 403 or 409 is as visible as a success. FlagsAdmin gained a per-call resource, the one deviation from BIO-007's minimal remediation: the toggle endpoint writes no log line of its own, so a constant "feature-flags" row would say a flag changed without saying which. It now records feature-flags/<key>=<value>. OrgAdmin and CasesAdmin keep coarse refs because those endpoints do log the specific object. The besluit gets a second row: the gate records that a behandelaar was allowed to act, aanvraag:besluit records what they decided. Row volume goes up — StamdataAdmin gates read endpoints, so admin page loads now write rows. That is what auditing the allow path means; it is also what would make retention on AuthzAuditStore necessary later. Closes CQ-004's outstanding half and unblocks signing ADR-C-009. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
BIG-register BFF (ASP.NET Core)
The backend that hosts the business rules for the BIG-register portal. The
frontend renders the decisions this service computes; it does not recompute them
(BFF-lite + decision DTOs — see ../docs/reference/architecture/0001-bff-lite-decision-dtos.md).
No real BRP/DUO: the reference data they'd return (registration, person, diplomas,
notes — Data/SeedData.cs) is in-memory and seeded, but the endpoints, DTOs,
status codes and error envelope are production-shaped.
Applications, documents and the brief persist to a SQLite file
(src/BigRegister.Api/bigregister.db, EF Core-backed — Data/AppDbContext.cs,
Data/Db.cs) created and migrated on first run; restarting the process (or
docker compose restart api — the existing ./backend:/src bind mount already
covers it, see docker-compose.yml) does not lose data. Delete the file to
reset demo data back to empty, the same state a fresh clone starts from. This is
a deliberate, right-sized choice for a POC (SQLite, no external DB service) — see
docs/project/backlog/WP-22-durable-persistence.md.
Run
Everything (docker-compose, from repo root)
docker compose up
- App: http://localhost:4200
- Swagger UI: http://localhost:5000/swagger
Backend only (local)
cd backend
dotnet run --project src/BigRegister.Api
# → http://localhost:5000/swagger
Frontend against a local backend
npm start # ng serve, proxies /api → http://localhost:5000 (proxy.conf.json)
Tests
cd backend && dotnet test # rule unit tests + endpoint integration tests
API
| Method | Route | Purpose |
|---|---|---|
| GET | /api/dashboard-view |
registration + person + computed herregistratie decision |
| GET | /api/notes |
specialisms / aantekeningen |
| GET | /api/brp/address |
BRP address lookup (gevonden:false = no address) |
| GET | /api/duo/diplomas |
diplomas with derived profession + applicable policy questions, + manual fallback |
| GET | /api/intake/policy |
scholing threshold (config value) |
| POST | /api/registrations |
submit registration → reference, or 422 (manual diploma) |
Rejections use ProblemDetails (RFC 7807) with status 422. Every request
carries an X-Correlation-Id (set by the FE fetch adapter); the backend echoes it
into a no-PII submit-audit log line (kind, outcome, reference, correlation id)
— the seam for real structured logging / an audit store.
Versioning
Endpoints live under /api/v1. Additive changes (a new optional field) stay on
v1: the NSwag-generated client and the FE parse* boundary ignore unknown fields,
so old clients keep working. A breaking change (renamed/removed field, changed
semantics) is introduced as /api/v2 served alongside v1 until clients migrate.
Where the rules live (src/BigRegister.Api/Domain/)
Diplomas/DiplomaRules.cs— profession derivation + which policy questions apply.Registrations/HerregistratieRule.cs— eligibility + reason + status invariant.Intake/IntakePolicy.cs— scholing threshold + completeness re-validation on submit (RejectIncompleteScholing, WP-69).Submissions/SubmissionRules.cs— submit rejections + reference generation.
Typed client (NSwag)
The frontend calls this API through a generated TypeScript client. Regenerate it from the contract after a shape change:
npm run gen:api # builds backend → swagger.json → src/app/shared/infrastructure/api-client.ts
Maintainability: changing a policy is one backend change
Goal: require every Verpleegkundige diploma to confirm a Dutch skills assessment. This is a new policy question on a diploma type.
Edit one file — Domain/Diplomas/DiplomaRules.cs:
public static IReadOnlyList<PolicyQuestion> QuestionsFor(Diploma d)
{
var questions = new List<PolicyQuestion>();
if (d.Engelstalig)
questions.Add(NlTaalEngelstalig);
+ if (d.Opleiding == "verpleegkunde")
+ questions.Add(new PolicyQuestion(
+ "bekwaamheid",
+ "Heeft u in de afgelopen vijf jaar een bekwaamheidstoets afgelegd?",
+ QuestionType.JaNee));
return questions;
}
Rebuild the backend (docker compose up or dotnet run). The new question now
appears in the registration wizard for HBO-Verpleegkunde.
- No frontend change. The FE renders whatever questions the API returns.
- No client regeneration. The wire shape (
PolicyQuestionDto) is unchanged — only the data behind it.npm run gen:apiis only needed when a DTO shape changes.
Add a unit test for the new rule in tests/BigRegister.Tests/RuleTests.cs and
you're done.