Server validation
Server validation is the checking of client-submitted or request data on a server before processing, accepting, or storing it.
Building Web APIs with ASP.NET Core
Server-side validation is the checking of request input by the server before accepting or processing that input.
- How it is used
- Protects request processing by checking input at the server boundary rather than relying on client interfaces.
- How deep it goes
- Distinguishes client-side checks from security-relevant server validation, but does not provide server-validation implementation steps.
- Examples
- Uses GET /BoardGames parameters, PageSize range constraints, invalid integer input, and ASC|DESC sort-order patterns.
- What you can do after
- Evaluate input-validation behavior by inspecting OpenAPI metadata and testing parameters through SwaggerUI.
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Build AI-Enhanced Web Apps
Server validation is input checking performed on a server after client-submitted data arrives and before the data is processed.
- How it is used
- Protects public application endpoints by checking client-submitted data before it reaches processing or AI-model logic.
- How deep it goes
- Explains the trust boundary, request timing, client-validation contrast, Zod schema, parsing, processing, and error response.
- Examples
- Demonstrates a Next.js API handler validating a 1,000-character prompt with Zod before processing it.
- What you can do after
- Build it from scratch by defining a Zod schema, parsing request data, processing validated values, and returning validation errors.
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Rust Servers, Services, and Apps
Server-side validation is validation of request data performed by a server before the requested operation is completed.
- How it is used
- Places request checks in the backend registration workflow before tutor data is stored or applied.
- How deep it goes
- Contrasts browser constraints with server handling but does not detail validation rules or implementation code.
- Examples
- Uses a tutor registration form with required fields, username length limits, and a POST /register submission.
- What you can do after
- Evaluate how browser checks and server handling divide responsibilities in a registration request flow.
Read how Rust Servers, Services, and Apps explains server validation →
Related concepts
- client-side validationcontrasts with · Client-side validation is checking user-supplied data in software running on the user's device before it is sent to a server or other remote system.
- remote validationcontrasts with · Remote validation is a validation technique that sends a value to a server endpoint for asynchronous checking and returns the validation result to the client.
- validationkind of · The process of checking data, behavior, systems, models, or results against defined criteria to assess their correctness, suitability, or acceptability.
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