#[macro_use] extern crate derive_builder; extern crate serde; extern crate serde_json; #[derive(Builder)] #[builder(setter(into), derive(serde::Serialize))] #[builder_struct_attr(serde(rename_all = "camelCase"))] #[allow(dead_code)] struct Example { first_name: String, middle_name: String, #[builder_field_attr(serde(rename = "familyName"))] last_name: String, } #[test] fn serialize_builder() { assert_eq!( serde_json::to_string( &ExampleBuilder::default() .first_name("Jane") .middle_name("Alice") .last_name("Doe"), ) .unwrap(), r#"{"firstName":"Jane","middleName":"Alice","familyName":"Doe"}"# ); }