Actix-web paperclip UUID test

Cargo.toml

[package]
name = "testing"
version = "0.1.0"
authors = ["Ravi Shankar <wafflespeanut@gmail.com>"]
edition = "2018"

[dependencies]
actix-web = "2.0"
serde = "1.0"
uuid = { version = "0.8", features = ["serde", "v4"] }
actix-rt = "1.0"
paperclip = { git = "https://github.com/wafflespeanut/paperclip", features = ["actix", "uid"] }

main.rs

use actix_web::{App, HttpServer};
use paperclip::actix::{
    OpenApiExt, api_v2_schema, api_v2_operation,
    web::{self, Json},
};
use serde::{Serialize, Deserialize};

#[api_v2_schema]
#[derive(Serialize, Deserialize)]
struct Pet {
    name: String,
    id: Option<uuid::Uuid>,
}

#[api_v2_operation]
async fn add_pet(body: Json<Pet>) -> Result<Json<Pet>, ()> {
    Ok(body)
}

#[actix_rt::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| App::new()
        .wrap_api()
        .with_json_spec_at("/api/spec")
        .service(
            web::resource("/pets")
                .route(web::post().to(add_pet))
        )
        .build()
    ).bind("127.0.0.1:8080")?
    .run().await
}