diff --git a/main.py b/main.py
index 1a6f5f3..5428be9 100644
--- a/main.py
+++ b/main.py
@@ -54,7 +54,8 @@ async def fastapi_get_nodes(network: str):
     nodes = []
     for i in range(0, nodeCount.value + 1):
         node_id = get_node_id(network, i)
-        nodes.append(node_id)
+        if node_id.error_code == 0:
+            nodes.append(node_id.value)
 
     return nodes
 
@@ -86,7 +87,8 @@ async def fastapi_get_links(network: str):
     links = []
     for i in range(0, linkCount.value + 1):
         link_id = get_link_id(network, i)
-        links.append(link_id)
+        if link_id.error_code == 0:
+            links.append(link_id.value)
 
     return links