custom attribute panicked message: called Option::unwrap() on a None

[ZimboPro]

I am using poem and poem-grants and copied the JWT example, but am getting the following error: custom attribute panicked message: called Option::unwrap() on a None on the #[poem_grants::protect("ADMIN")] macro. The code is:

#[poem_grants::protect("ADMIN")]
#[handler]
fn post_blog(mut pool: Data<&PgPool>, Json(blog): Json<NewBlog>) -> Response {
    let r = match blog.id {
        Some(id) => Blog::update(pool_handler(pool)?.borrow_mut(), id, blog.into()),
        None => Blog::create(pool_handler(pool)?.borrow_mut(), blog.into()),
    };

    match r {
        Ok(blog) => ResponseBuilder::builder()
            .status(StatusCode::OK)
            .body(json!({
                "blog": r.expect("Error")
            })),
        Err(e) => {
            eprintln!("Failed to save or update blog: {}", e);
            ResponseBuilder::builder()
                .status(StatusCode::SERVICE_UNAVAILABLE)
                .body(MessageResponse {
                    message: "Failed to update or insert".to_string(),
                })
        }
    }
}

...

pub fn api() -> JwtMiddlewareImpl<Route> {
    Route::new()
        .at("/getBlogs", get(get_blogs))
        .at("/getBlog", get(get_blog))
        .at("/updateBlog", post(post_blog))
        .at("/getFaq", get(get_faq))
        .at("/getTestimonial", get(get_testimonial))
        .with(JwtMiddleware)
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    tracing_subscriber::fmt::init();
    let connection_pool = db_helpers::establish_connection();
    let app = Route::new()
        .nest("/api/content", api())
        .with(AddData::new(connection_pool))
        .with(Tracing);
    Server::new(TcpListener::bind("0.0.0.0:3000"))
        .run_with_graceful_shutdown(
            app,
            async move {
                let _ = tokio::signal::ctrl_c().await;
            },
            Some(Duration::from_secs(1)),
        )
        .await?;
    Ok(())
}

[DDtKey]

Hi @ZimboPro!

Your handler isn't async, is it expected? I see there is no any async calls, right
That's just wasn't supported as part of poem-grants

It's because of this line. unwrap can be used only during macro-expansion - i.e compile time only. And looks like we can handle this way better. Poem supports non async handlers

[DDtKey]

Thanks for the report @ZimboPro!

It was fixed, now non-async handlers are supported as well (poem only).

New version has been released. Please, let me know if you still experience any issues.

[ZimboPro]

Thanks for the quick reply and solution, that solves the issue