fix: server function custom errors set status codes #4782
Merged
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This fixes an issue where the new server functions wouldn't set the status code of the response when using
ServerFnErroror custom error types.There doesn't seem to be a simple mechanism in Rust to let us automatically downcast the
From<ServerFnError> + Serialize + Deserializetype we were using for custom error types, so now, to use a custom error type, it must implementAsStatusCodewhich has a single methodas_status_codewhere you can customize what status code each variant turns into.