Create a handler that can yield either a successful response or an error message?

[kyborq]

Is there a solution to create custom response handler by writing structure like this:

pub enum CustomResponse<T> {
    Body(T),
    Error(String),
}

And call it in api handler like this?

#[derive(Debug, Deserialize)]
pub struct Data {
    pub name: String,
}

pub async fn demo() -> CustomResponse<Data> {
    // If error return
    CustomResponse::Error("Error message".to_string());

    // If success return
    CustomResponse::Body(Data {
        name: "Alex".to_string(),
    })
}

[davidpdrsn]

Yes. Did you read the docs here https://docs.rs/axum/latest/axum/response/index.html? There are lots of examples.