try again to fix error

app.py

@@ -30,16 +30,12 @@ def index():
 @app.route("/nodes")
 def nodes():
     data = {}
-    nodes = iface.nodes.items()
-    for node_id, node in nodes:
-        num = node.get('num')
-        user = node.get('user')
-        position = node.get('position')
-        deviceMetrics = node.get('deviceMetrics')
+    for node_id, node in iface.nodes.items():
+        data[node_id] = safe_dict(node)
+
     return jsonify({
-        # "myNodeNum": MY_NODE_NUM,
         "myNodeId": MY_NODE_ID,
-        "nodes": safe_dict(nodes)
+        "nodes": data
     })
 
 if __name__ == "__main__":