Ten Vest 6 Tutorials

Vest becomes most useful when validation stops being a one-time check and starts behaving like a process. These tutorials progress from a small test-like suite to focused state, asynchronous work, conditional workflows, server continuity, and application-specific rules.

Every example follows the Vest 6 API hierarchy:

1. Use suite.run(data) for stateful application validation.
2. Use suite.runStatic(data) for an independent server request or isolated execution.
3. Pass the suite to Standard Schema consumers. The ~standard.validate hook is an interoperability contract, not Vest's general execution API.

The learning path

#	Tutorial	What you will build	Core capability
1	Validation that reads like unit tests	A signup suite outside the UI	create, test, enforce, and result selectors
2	Validate one field without forgetting the rest	Progressive profile validation	Focused execution and retained results
3	Async checks without stale results	Username availability validation	Pending state, cancellation, and race safety
4	Reduce repeated async validation	A coupon check with bounded reuse	memo, debounce, and AbortSignal
5	Warnings that do not block submission	Password-strength guidance	Errors, warnings, pending, and untested state
6	Choose between skipping and omitting	Pickup and delivery sections	Relevant-later versus not-applicable rules
7	Validate a multi-step workflow	A typed onboarding wizard	Groups, step validity, and cross-field rules
8	Parse typed input without losing Vest's runtime	A schema-backed registration suite	Input/output inference, parsing, and Standard Schema
9	Share validation between server and client	Stateless request validation with hydration	runStatic, serialization, and resumption
10	Teach validation your domain language	Typed, context-aware Enforce rules	condition, enforce.extend, and sibling context

What the sequence demonstrates

The first tutorial makes rules readable and independently testable. The next six show why Vest is a validation-state runtime: each interaction can run a deliberate subset of work while the suite retains trustworthy history and coordinates pending results. The final three connect that runtime to typed parsing, server authority, ecosystem tools, and domain-specific vocabulary.

You do not need every capability. Start with the tutorial closest to the failure mode in your application, then return to the sequence when the workflow grows.

After the tutorials

• Use the production registration architecture to see the capabilities composed in one runnable React application.
• Read Vest, schema validators, and form libraries before choosing responsibility boundaries.
• Check when not to use Vest for smaller or purely structural validation tasks.