example in https://actix.rs/docs/request/ has error

[aohan237]

error[E0277]: the size for values of type [u8] cannot be known at compilation time

extern crate serde_json;
use futures::{Future, Stream};

#[derive(Serialize, Deserialize)]
struct MyObj {name: String, number: i32}

fn index(req: &HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> {
   // `concat2` will asynchronously read each chunk of the request body and
   // return a single, concatenated, chunk
   req.concat2()
      // `Future::from_err` acts like `?` in that it coerces the error type from
      // the future into the final error type
      .from_err()
      // `Future::and_then` can be used to merge an asynchronous workflow with a
      // synchronous workflow
      .and_then(|body| {
          let obj = serde_json::from_slice::<MyObj>(&body)?;
          Ok(HttpResponse::Ok().json(obj))
      })
      .responder()
}

[DoumanAsh]

I'm not sure where exactly is error, I assume it is at line with from_slice but if it is not difficult you can make PR to correct it here

[fafhrd91]

Outdated