rust
use std::path::PathBuf;

use axum::{routing::get, Router};
use axum_extra::routing::SpaRouter;

async fn hello_world() -> &'static str {
    "Hello, world!"
}

#[shuttle_runtime::main]
async fn axum(
    // Name your static assets folder by passing `folder = <name>` to `StaticFolder`
    // If you don't pass a name, it will default to `static`.
    #[shuttle_static_folder::StaticFolder(folder = "assets")] static_folder: PathBuf,
) -> shuttle_axum::ShuttleAxum {
    let router = Router::new()
        .route("/hello", get(hello_world))
        .merge(SpaRouter::new("/assets", static_folder).index_file("index.html"));

    Ok(router.into())
}

2023-05-13T08:39:12.639700265Z DEBUG error[E0432]: unresolved import `axum_extra::routing::SpaRouter`
 --> src/main.rs:4:5
  |
4 | use axum_extra::routing::SpaRouter;
  |     ^^^^^^^^^^^^^^^^^^^^^---------
  |     |                    |
  |     |                    help: a similar name exists in the module: `Router`
  |     no `SpaRouter` in `routing`


2023-05-13T08:39:12.671257094Z DEBUG error[E0599]: no function or associated item named `new` found for struct `StaticFolder` in the current scope
  --> src/main.rs:10:1
   |
10 | #[shuttle_runtime::main]
   | ^^^^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `StaticFolder<'_>`
   |
   = help: items from traits can only be used if the trait is in scope
   = note: this error originates in the attribute macro `shuttle_runtime::main` (in Nightly builds, run with -Z macro-backtrace for more info)
help: the following trait is implemented but not in scope; perhaps add a `use` for it:
   |
1  | use shuttle_service::ResourceBuilder;
   |

toml
[dependencies]
shuttle-runtime = "0.14.0"
axum = "0.6.17"
shuttle-axum = "0.14.0"
tokio = "1.28.0"
shuttle-static-folder = "0.16.0"
axum-extra = "0.7.4"

no function or associated item named `new` found for struct `StaticFolder` in the current scope
  --> src/main.rs:10:1
   |
10 | #[shuttle_runtime::main]
   | ^^^^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `StaticFolder<'_>`
   |
   = help: items from traits can only be used if the trait is in scope
   = note: this error originates in the attribute macro `shuttle_runtime::main` (in Nightly builds, run with -Z macro-backtrace for more info)
help: the following trait is implemented but not in scope; perhaps add a `use` for it:
   |
1  | use shuttle_service::ResourceBuilder;
   |

cargo-shuttle 0.16.0

cargo shuttle --version

toml
[dependencies]
shuttle-runtime = "0.14.0"
axum = "0.6.17"
shuttle-axum = "0.14.0"
tokio = "1.28.0"
shuttle-static-folder = "0.16.0"
axum-extra = "0.7.4"