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display_error method #6

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Merged
snoyberg merged 1 commit into from
Jul 17, 2024
Merged

display_error method #6

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9 changes: 8 additions & 1 deletion src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -279,6 +279,13 @@ pub trait CacheLoader: Send + Sync + 'static {
fn into_response(output: &Self::Output) -> Response<Body> {
Json(output).into_response()
}

/// Convert the error output into an error message and status code.
///
/// By default, uses the [Display] trait and an internal server error (500 status code).
fn display_error(err: anyhow::Error) -> (String, StatusCode) {
(err.to_string(), StatusCode::INTERNAL_SERVER_ERROR)
}
}

impl AsyncLoaderBuilder {
Expand Down Expand Up @@ -595,7 +602,7 @@ impl<Loader: CacheLoader> AsyncLoader<Loader> {
tracing::error!("AsyncLoader::do_update: {err:?}");
let (message, status) = match err.downcast() {
Ok(ErrorResponse { status, message }) => (message, status),
Err(err) => (err.to_string(), StatusCode::INTERNAL_SERVER_ERROR),
Err(err) => Loader::display_error(err),
};
ValueForRender::Error {
message: message.into(),
Expand Down