feat: use PresentationDefinition id to initiate KCC application (#273)

TBD54566975 · Aug 21, 2024 · 520bf5f · 520bf5f
1 parent c66bba7
commit 520bf5f
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Showing 4 changed files with 46 additions and 27 deletions.
diff --git a/lib/features/kcc/kcc_consent_page.dart b/lib/features/kcc/kcc_consent_page.dart
@@ -8,11 +8,17 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:web5/web5.dart';
 
 class KccConsentPage extends HookConsumerWidget {
   final Pfi pfi;
+  final PresentationDefinition presentationDefinition;
 
-  const KccConsentPage({required this.pfi, super.key});
+  const KccConsentPage({
+    required this.pfi,
+    required this.presentationDefinition,
+    super.key,
+  });
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
@@ -44,7 +50,10 @@ class KccConsentPage extends HookConsumerWidget {
                   ? null
                   : () => Navigator.of(context).push(
                         MaterialPageRoute(
-                          builder: (_) => KccWebviewPage(pfi: pfi),
+                          builder: (_) => KccWebviewPage(
+                            pfi: pfi,
+                            presentationDefinition: presentationDefinition,
+                          ),
                         ),
                       ),
             ),

diff --git a/lib/features/kcc/kcc_issuance_service.dart b/lib/features/kcc/kcc_issuance_service.dart
@@ -94,9 +94,12 @@ class KccIssuanceService {
 
   Future<IdvRequest> getIdvRequest(
     Pfi pfi,
+    PresentationDefinition presentationDefinition,
     BearerDid bearerDid,
   ) async {
-    final idvServiceEndpoint = await getIdvServiceEndpoint(pfi);
+    final idvServiceEndpoint =
+        await getIdvServiceEndpoint(pfi, presentationDefinition);
+
     var response = await httpClient.get(idvServiceEndpoint);
 
     final authRequest = await SiopV2AuthRequest.fromUrlParams(response.body);
@@ -373,7 +376,8 @@ class KccIssuanceService {
     return getVerifiableCredential(pfi, idvRequest, tokenResponse, bearerDid);
   }
 
-  Future<Uri> getIdvServiceEndpoint(Pfi pfi) async {
+  Future<Uri> getIdvServiceEndpoint(
+      Pfi pfi, PresentationDefinition presentationDefinition) async {
     try {
       final res = await DidResolver.resolve(pfi.did);
       if (res.hasError()) {
@@ -386,7 +390,14 @@ class KccIssuanceService {
         throw Exception('Malformed resolution result: missing DID Document');
       }
 
-      return PfisService.getServiceEndpoint(res.didDocument!, 'IDV');
+      final idvServiceEndpoint =
+          PfisService.getServiceEndpoint(res.didDocument!, 'IDV');
+
+      return idvServiceEndpoint.replace(
+        queryParameters: {
+          'presentation_definition_id': presentationDefinition.id,
+        },
+      );
     } on Exception catch (e) {
       throw CredentialRequestException(
         message: 'failed to resolve PFI DID',

diff --git a/lib/features/kcc/kcc_webview_page.dart b/lib/features/kcc/kcc_webview_page.dart
@@ -13,12 +13,15 @@ import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:flutter_inappwebview/flutter_inappwebview.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:web5/web5.dart';
 
 class KccWebviewPage extends HookConsumerWidget {
   final Pfi pfi;
+  final PresentationDefinition presentationDefinition;
 
   const KccWebviewPage({
     required this.pfi,
+    required this.presentationDefinition,
     super.key,
   });
 
@@ -77,9 +80,9 @@ class KccWebviewPage extends HookConsumerWidget {
                   ),
                 ),
               );
+            } else {
+              controller.loadUrl(urlRequest: URLRequest(url: WebUri(fullPath)));
             }
-
-            controller.loadUrl(urlRequest: URLRequest(url: WebUri(fullPath)));
           },
           onLoadStop: (controller, url) async {
             if (url == null) {
@@ -131,7 +134,7 @@ class KccWebviewPage extends HookConsumerWidget {
     try {
       final idvRequest = await ref
           .read(kccIssuanceProvider)
-          .getIdvRequest(pfi, ref.read(didProvider));
+          .getIdvRequest(pfi, presentationDefinition, ref.read(didProvider));
 
       if (context.mounted) {
         state.value = AsyncData(idvRequest);

diff --git a/lib/features/payment/payment_details_page.dart b/lib/features/payment/payment_details_page.dart
@@ -158,10 +158,23 @@ class PaymentDetailsPage extends HookConsumerWidget {
                       );
 
               if (credentials == null) {
-                final issuedCredential = await _startKccFlow(context);
+                final issuedCredential = await Navigator.of(context).push(
+                  MaterialPageRoute(
+                    builder: (context) => ModalFlow(
+                      initialWidget: KccConsentPage(
+                        pfi: Pfi(
+                          did: paymentState.paymentAmountState?.pfiDid ?? '',
+                        ),
+                        presentationDefinition: presentationDefinition,
+                      ),
+                    ),
+                    fullscreenDialog: true,
+                  ),
+                );
+
                 if (issuedCredential == null) return;
 
-                credentials = issuedCredential;
+                credentials = [issuedCredential as String];
               }
 
               state.value = state.value.copyWith(credentialsJwt: credentials);
@@ -262,23 +275,6 @@ class PaymentDetailsPage extends HookConsumerWidget {
     );
   }
 
-  Future<List<String>?> _startKccFlow(BuildContext context) async {
-    final credential = await Navigator.of(context).push(
-      MaterialPageRoute(
-        builder: (context) => ModalFlow(
-          initialWidget: KccConsentPage(
-            pfi: Pfi(
-              did: paymentState.paymentAmountState?.pfiDid ?? '',
-            ),
-          ),
-        ),
-        fullscreenDialog: true,
-      ),
-    );
-
-    return credential == null ? null : [credential as String];
-  }
-
   Future<void> _sendRfq(
     BuildContext context,
     WidgetRef ref,