Server Actions in Depth
Mutations without API routes? Exploring the mental model shift of RPC-style server functions in Next.js App Router.
Closures over the Network
Server Actions feel like calling a function on the backend from the frontend. Because they are. Next.js creates a hidden API endpoint, but to the developer, it's just an async function import. This co-location of data logic and UI is powerful.
Progressive Enhancement
Used with `<form action={save}>`, Server Actions work without JavaScript enabled. This returns us to the robust web roots while giving us the progressive enhancement of client-side validation when JS loads.
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