use serde_derive::Deserialize;
use serde_derive::Serialize;

use feign::{client, ClientResult};

#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct User {
    pub id: i64,
    pub name: String,
}

#[client(host = "http://127.0.0.1:3000", path = "/user")]
pub trait UserClient {
    
    #[get(path = "/find_by_id/
       
        "
       )]
    async fn find_by_id(&self, #[path] id: i64) -> ClientResult<Option
       >;
    
    #[post(path = 
       "/new_user")]
    
       async 
       fn 
       new_user(
       &
       self, #[json] user: 
       &User) -> ClientResult<
       Option<
       String>>;

}

#[tokio::main]

       async 
       fn 
       main() {
    
       let user_client: UserClient 
       = UserClient
       ::
       new();

    
       match user_client.
       find_by_id(
       12).
       await {
        
       Ok(option) 
       => 
       match option {
            
       Some(user) 
       => 
       println!(
       "user : {}", user.name),
            
       None 
       => 
       println!(
       "none"),
        },
        
       Err(err) 
       => 
       panic!(
       "{}", err),
    };
}