use http::Request;
use http_body_util::BodyExt;
use hyper::body::Incoming;
use serde::de::DeserializeOwned;
use std::{any::TypeId, error::Error};

pub struct Requester;

impl Requester {
    pub async fn extract_body<T>(req: Request<Incoming>) -> Result<T, Box<dyn Error + Send + Sync>>
    where
        T: DeserializeOwned + 'static,
    {
        let body = req.collect().await?.to_bytes();
        if TypeId::of::<T>() == TypeId::of::<String>() {
            let string = String::from_utf8(body.to_vec())?;
            return Ok(serde_json::from_str(&string)?);
        }

        Ok(serde_json::from_slice(&body)?)
    }
}