Search param schema
React chapter 54 · TanStack Router · validateSearch · source: TanStack/router/packages/router-core
The problem
Search params are strings. Number(page) on ?page=abc is NaN. A typo in ?sort=colour silently filters to nothing. The URL is untyped state — chapter 30 without a schema.
The pattern that fixes it
validateSearch parses the query into a typed object and replaces garbage with defaults (or a search error). Loaders and components receive { page: number, sort: "asc" | "desc" }, never raw strings. That is TanStack Router’s search contract.
Keep learning
- Previous: Vanilla store + middleware
- Next: Route loaders
- Related: Selector equality
- Related: Vanilla store + middleware
- Related: Route loaders
- Related: Schema resolver
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