apps/ssp/src/app/registratie/application/registratie-lookup.store.ts

@@ -41,7 +41,7 @@ export class RegistratieLookupStore {
       const json = this.adresRes.value();
       if (json === undefined) return null;
       const parsed = parseBrpAddress(json);
-      return parsed.ok && parsed.value.gevonden && parsed.value.adres ? parsed.value.adres : null;
+      return parsed.ok && parsed.value.adres ? parsed.value.adres : null;
     },
   );
 

apps/ssp/src/app/registratie/infrastructure/brp.adapter.ts

@@ -3,6 +3,13 @@ import { Result, ok, err } from '@shared/kernel/fp';
 import { BrpAddressDto } from '@shared/infrastructure/api-client';
 import { ApiClient } from '@shared/infrastructure/api-client';
 
+/** BRP address lookup, narrowed from the generated (all-optional) `BrpAddressDto`
+    to what `gevonden` actually guarantees. */
+export interface BrpAddress {
+  gevonden: boolean;
+  adres?: { straat: string; postcode: string; woonplaats: string };
+}
+
 /**
  * Infrastructure adapter for the BRP address lookup, reached only through our own
  * ("BFF-lite") endpoint — the anti-corruption boundary. Data comes from the .NET
@@ -21,20 +28,22 @@ export class BrpAdapter {
 /** Trust-boundary parse: validate the untrusted response shape. "Geen adres" is a
     valid outcome (gevonden: false), not a malformed response. ponytail: hand-written;
     reach for a schema lib once the contract count grows. */
-export function parseBrpAddress(json: unknown): Result<string, BrpAddressDto> {
+export function parseBrpAddress(json: unknown): Result<string, BrpAddress> {
   if (typeof json !== 'object' || json === null) return err('brp-address: not an object');
   const dto = json as Partial<BrpAddressDto>;
   if (typeof dto.gevonden !== 'boolean') return err('brp-address: missing/invalid gevonden');
-  if (dto.gevonden) {
-    const a = dto.adres;
-    if (
-      !a ||
-      typeof a.straat !== 'string' ||
-      typeof a.postcode !== 'string' ||
-      typeof a.woonplaats !== 'string'
-    ) {
-      return err('brp-address: missing/invalid adres');
-    }
+  if (!dto.gevonden) return ok({ gevonden: false });
+  const a = dto.adres;
+  if (
+    !a ||
+    typeof a.straat !== 'string' ||
+    typeof a.postcode !== 'string' ||
+    typeof a.woonplaats !== 'string'
+  ) {
+    return err('brp-address: missing/invalid adres');
   }
-  return ok({ gevonden: dto.gevonden, adres: dto.adres });
+  return ok({
+    gevonden: true,
+    adres: { straat: a.straat, postcode: a.postcode, woonplaats: a.woonplaats },
+  });
 }