Vertex follows who follow impl

lib/models/nostr_adapter.dart

@@ -14,6 +14,7 @@ import 'package:zapstore/widgets/latest_releases_container.dart';
 // const kAppRelays = {'ws://10.0.2.2:3000'};
 const kAppRelays = {'wss://relay.zapstore.dev'};
 const kSocialRelays = {'wss://relay.damus.io', 'wss://relay.primal.net', 'ndk'};
+const kVertexRelay = {'wss://relay.vertexlab.io'};
 
 mixin NostrAdapter<T extends DataModelMixin<T>> on Adapter<T> {
   RelayMessageNotifier get relay =>
@@ -22,6 +23,9 @@ mixin NostrAdapter<T extends DataModelMixin<T>> on Adapter<T> {
   RelayMessageNotifier get socialRelays =>
       ref.read(relayProviderFamily(kSocialRelays).notifier);
 
+  RelayMessageNotifier get vertexRelay =>
+      ref.read(relayProviderFamily(kVertexRelay).notifier);
+
   @override
   Future<void> onInitialized() async {
     await super.onInitialized();

lib/models/user.dart

@@ -226,26 +226,20 @@ mixin UserAdapter on NostrAdapter<User> {
     return super.deserialize(data);
   }
 
-  Future<List<User>> getTrusted(String npub1, String npub2) async {
-    final url = 'https://trustgraph.live/api/fwf/$npub1/$npub2';
-    final users = await sendRequest(
-      Uri.parse(url),
-      onSuccess: (response, label) async {
-        if (response.body == null) return null;
-        final map =
-            Map<String, dynamic>.from(jsonDecode(response.body.toString()));
-
-        final trustedKeys = map.keys.map((npub) => npub.hexKey);
-        return await findAll(
-          params: {'authors': trustedKeys},
-          onSuccess: (response, label, adapter) {
-            final data = deserialize(response.body);
-            return data.models;
-          },
-        );
-      },
-    );
-    return users!;
+  Future<List<User>> getFollowsWhoFollow(String npub1, String npub2) async {
+    final search = jsonEncode({
+      'source': npub1.hexKey,
+      'targets': [npub2.hexKey]
+    });
+    final response = await ref.users.nostrAdapter.vertexRelay
+        .queryRaw(base.RelayRequest(kinds: {6312, 7000}, search: search));
+    if (response.isEmpty || response.first['kind'] == 7000) {
+      return [];
+    }
+    final result = response.first['content'];
+    final pubkeyList = (jsonDecode(result) as List).map((e) => e['pubkey']);
+    final users = await findAll(params: {'authors': pubkeyList});
+    return users;
   }
 }
 

lib/widgets/follows_who_follow_container.dart

@@ -59,6 +59,7 @@ class FollowsWhoFollowContainer extends HookConsumerWidget {
 final followsWhoFollowProvider = FutureProvider.autoDispose
     .family<List<User>, ({String from, String to})>((ref, arg) async {
   final _ = ref.watch(signedInUserProvider);
-  final users = await ref.users.userAdapter.getTrusted(arg.from, arg.to);
+  final users =
+      await ref.users.userAdapter.getFollowsWhoFollow(arg.from, arg.to);
   return users.toSet().toList();
 });