work in progress

app/Http/Resources/ChatResource.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+
+class ChatResource extends BaseResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        $data = parent::toArray($request);
+
+        if ($this->whenLoaded('messages')) {
+            $data['messages'] = MessageResource::collection($this->messages);
+        }
+
+        return $data;
+    }
+}

app/Http/Resources/DynamicResource.php

@@ -17,9 +17,12 @@ class DynamicResource extends BaseResource
         if ($this->ledgers) {
             $result['ledgers'] = LedgerResource::collection($this->ledgers);
         }
-        if ($this->participants) {
+        if ($this->whenLoaded('participants')) {
             $result['participants'] = ParticipantResource::collection($this->participants);
         }
+        if ($this->whenLoaded('chat')) {
+            $result['chat'] = new ChatResource($this->chat);
+        }
         return $result;
     }
 }

app/Http/Resources/LedgerResource.php

@@ -13,6 +13,10 @@ class LedgerResource extends BaseResource
      */
     public function toArray(Request $request): array
     {
-        return parent::toArray($request);
+        $data = parent::toArray($request);
+
+        $data['mutations'] = MutationResource::collection($this->whenLoaded('mutations'));
+
+        return $data;
     }
 }