Merge pull request #1167 from GetStream/feat/listen-channel-member-updated

feat(llc): handle member.updated events in channel client

packages/stream_chat/CHANGELOG.md

@@ -8,10 +8,11 @@
 - Added `PaginationParams.createdAtBefore` for message pagination.
 - Added `PaginationParams.createdAtAround` for message pagination.
 - Added support for `channel.membership` and `channel.membershipStream` in `Channel`.
+- `Channel` now listens for `member.updated` events and updates the `Channel.members` accordingly.
 
 🔄 Changed
 
-- Deprecated `PaginationParams.before` and `PaginationParams.after`. Use `PaginationParams.limit` instead. 
+- Deprecated `PaginationParams.before` and `PaginationParams.after`. Use `PaginationParams.limit` instead.
 
 ## 4.1.0
 

packages/stream_chat/lib/src/client/channel.dart

@@ -1552,6 +1552,8 @@ class ChannelClientState {
 
     _listenMemberRemoved();
 
+    _listenMemberUpdated();
+
     _listenMemberBanned();
 
     _listenMemberUnbanned();
@@ -1644,6 +1646,18 @@ class ChannelClientState {
     }));
   }
 
+  void _listenMemberUpdated() {
+    _subscriptions.add(_channel.on(EventType.memberUpdated).listen((Event e) {
+      final member = e.member;
+      final existingMembers = channelState.members ?? [];
+      updateChannelState(channelState.copyWith(
+        members: existingMembers
+            .map((m) => m.userId == member!.userId ? member : m)
+            .toList(growable: false),
+      ));
+    }));
+  }
+
   void _listenChannelUpdated() {
     _subscriptions.add(_channel.on(EventType.channelUpdated).listen((Event e) {
       final channel = e.channel!;

packages/stream_chat/lib/src/event_type.dart

@@ -73,6 +73,9 @@ class EventType {
   /// Event sent when a member is removed to a channel
   static const String memberRemoved = 'member.removed';
 
+  /// Event sent when a member is updated in a channel
+  static const String memberUpdated = 'member.updated';
+
   /// Event sent when a member is removed to a channel
   static const String userBanned = 'user.banned';