tried fixing getsetter

project/addons/discord-rpc-gd/discord_coreupdater.gd

@@ -1,4 +1,4 @@
 extends Node
 
 func _process(delta):
-	DiscordActivity.coreupdate()
+	DiscordSDK.coreupdate()

project/main.gd

@@ -1,7 +1,7 @@
 extends Node
 
 func _ready():
-	DiscordActivity.set_app_id(918857075105349632)
-	DiscordActivity.set_details("Made with GDExtension")
-	DiscordActivity.set_state("This is a test from GDScript in Godot 4") #TODO:Change functions to variables if possible
-	DiscordActivity.refresh()
+	DiscordSDK.set_app_id(918857075105349632)
+	DiscordSDK.set_details("Made with GDExtension")
+	DiscordSDK.set_state("This is a test from GDScript in Godot 4") #TODO:Change functions to variables if possible
+	DiscordSDK.refresh()

src/main.h

@@ -16,6 +16,11 @@ class DiscordSDK : public Object
 protected:
     static void _bind_methods();
 
+private:
+    int app_id;
+    String state;
+    String details;
+
 public:
     static DiscordSDK *get_singleton();
 

src/register_types.cpp

@@ -18,7 +18,7 @@ void gdextension_initialize(ModuleInitializationLevel p_level)
         ClassDB::register_class<DiscordSDK>();
 
         discordsdk = memnew(DiscordSDK);
-        Engine::get_singleton()->register_singleton("DiscordActivity", DiscordSDK::get_singleton()); // Cant change the class name in the cpp files for some reason
+        Engine::get_singleton()->register_singleton("DiscordSDK", DiscordSDK::get_singleton()); // Cant change the class name in the cpp files for some reason
     }
 }