Global server error handler

[TrueWill]

Goals

1. Handling errors in Server Actions
2. Handling errors in Server Components

Non-Goals

1. Client-side error handling

Background

https://rc.nextjs.org/docs/app/building-your-application/routing/error-handling discusses recommendations for Server Actions, but as far as I can tell there are no options for server components (e.g. fetch errors). You end up with workarounds like #66999 (reply in thread) I don't want to put try..catch blocks everywhere.

The goal is to access the full server-side error for logging purposes, not the "specific message is omitted in production" message.

Proposal

Just as we can write client-side error handlers, let us do this server-side. Make it consistent; not useActionState in Server Actions and try..catch in Server Components. Add one server-side event or file that handles everything. Most production apps are going to use some error-handling service; let us catch unhandled errors in one place.

[TrueWill]

This is the best workaround I've found in the meantime: https://joulev.dev/blogs/throwing-expected-errors-in-react-server-actions