Can set to follow a friend

lib/helpers/friends_helper.dart

@@ -52,6 +52,20 @@ class FriendsHelper {
     return response.code == 200;
   }
 
+  /// Update following status for a friend
+  Future<bool> setFollowing(int friendID, bool follow) async {
+    final response = await APIRequest(
+      uri: "friends/setFollowing",
+      needLogin: true,
+      args: {
+        "friendID" : friendID.toString(),
+        "follow": follow.toString()
+      }
+    ).exec();
+
+    return response.code == 200;
+  }
+
   /// Remove a friend from the list
   Future<bool> removeFriend(int friendID) async {
     final response = await APIRequest(