---
source: apollo-router/src/configuration/upgrade.rs
expression: "apply_migration(&source_doc(),\n &Migration::builder().action(Action::Add {\n path: \"obj\".to_string(),\n name: \"field1\".to_string(),\n value: 25.into(),\n }).description(\"add field1\").build()).expect(\"expected successful migration\")"
---
{
"obj": {
"field1": 1,
"field2": 2
},
"arr": [
"v1",
"v2"
]
}