Server Actions: RPC for the Modern Web
Server Actions are async functions that run on the server but can be called directly from Client Components. They're like having an API endpoint inline with your component code.
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LearnStep 1 of 5
Understanding Server Actions
Learning Objectives
- •Understand Server Actions and how they work
- •Build forms with progressive enhancement
- •Implement optimistic updates
- •Handle validation and errors properly
Lesson Outline
LearnStep 1/5
Understanding Server Actions
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Key Benefits:
- Progressive enhancement - works without JavaScript
- Automatic serialization of FormData
- Built-in revalidation integration
- Type-safe with TypeScript
Server Action Rules
- Must be marked with
'use server'directive - Can only be async functions
- Arguments must be serializable (no functions, classes)
- Can be defined inline or in separate files
Inline vs Module Server Actions
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