Next Safe Navigation Versions Save

Patch Changes

• a953425 Thanks @lukemorales! - Use iterator to check URLSearchParams size in older browsers by @wontondon

Patch Changes

• 4f0e3a5 Thanks @lukemorales! - Fix type definition for useSafeParams when route has both params and searchParams defined

Minor Changes

• #15 31d794e Thanks @lukemorales! - Add support for experimental.typedRoutes

  You may now enable experimental.typedRoutes in next.config.js to have a better and safer experience with autocomplete when defining your routes

Minor Changes

• #14 fc55e1d Thanks @lukemorales! - Add better support for Catch-all Segments

Patch Changes

• a5194b3 Thanks @lukemorales! - Use regex instead of for loop to replace path params

Patch Changes

• be00799 Thanks @lukemorales! - Fix route builder closure mutating same path string

Minor Changes

• 8cbcb51 Thanks @lukemorales! - Initial release

  Static type and runtime validation of routes, route params and query string parameters on client and server components for navigating routes in NextJS App Router with Zod schemas.

  [!WARNING] Ensure experimental.typedRoutes is not enabled in next.config.js

  Declare your application routes and parameters in a single place

  // src/shared/navigation.ts
  import { createNavigationConfig } from "next-safe-navigation";
  import { z } from "zod";
  
  export const { routes, useSafeParams, useSafeSearchParams } =
    createNavigationConfig((defineRoute) => ({
      home: defineRoute("/"),
      customers: defineRoute("/customers", {
        search: z
          .object({
            query: z.string().default(""),
            page: z.coerce.number().default(1),
          })
          .default({ query: "", page: 1 }),
      }),
      invoice: defineRoute("/invoices/[invoiceId]", {
        params: z.object({
          invoiceId: z.string(),
        }),
      }),
    }));
  

  Runtime validation for React Server Components (RSC)

  [!IMPORTANT] The output of a Zod schema might not be the same as its input, since schemas can transform the values during parsing (e.g.: z.coerce.number()), especially when dealing with URLSearchParams where all values are strings and you might want to convert params to different types. For this reason, this package does not expose types to infer params or searchParams from your declared routes to be used in page props:

  interface CustomersPageProps {
    // ❌ Do not declare your params | searchParam types
    searchParams?: ReturnType<typeof routes.customers.$parseSearchParams>;
  }
  

  Instead, it is strongly advised that you parse the params in your server components to have runtime validated and accurate type information for the values in your app.

  // src/app/customers/page.tsx
  import { routes } from "@/shared/navigation";
  
  interface CustomersPageProps {
    // ✅ Never assume the types of your params before validation
    searchParams?: unknown
  }
  
  export default async function CustomersPage({ searchParams }: CustomersPageProps) {
    const { query, page } = routes.customers.$parseSearchParams(searchParams);
  
    const customers = await fetchCustomers({ query, page });
  
    return (
      <main>
        <input name="query" type="search" defaultValue={query} />
  
        <Customers data={customers} />
      </main>
    )
  };
  
  /* --------------------------------- */
  
  // src/app/invoices/[invoiceId]/page.tsx
  import { routes } from "@/shared/navigation";
  
  interface InvoicePageProps {
    // ✅ Never assume the types of your params before validation
    params?: unknown
  }
  
  export default async function InvoicePage({ params }: InvoicePageProps) {
    const { invoiceId } = routes.invoice.$parseParams(params);
  
    const invoice = await fetchInvoice(invoiceId);
  
    return (
      <main>
        <Invoice data={customers} />
      </main>
    )
  };
  

  Runtime validation for Client Components

  // src/app/customers/page.tsx
  'use client';
  
  import { useSafeSearchParams } from "@/shared/navigation";
  
  export default function CustomersPage() {
    const { query, page } = useSafeSearchParams('customers');
  
    const customers = useSuspenseQuery({
      queryKey: ['customers', { query, page }],
      queryFn: () => fetchCustomers({ query, page}),
    });
  
    return (
      <main>
        <input name="query" type="search" defaultValue={query} />
  
        <Customers data={customers.data} />
      </main>
    )
  };
  
  /* --------------------------------- */
  
  // src/app/invoices/[invoiceId]/page.tsx
  'use client';
  
  import { useSafeParams } from "@/shared/navigation";
  
  export default function InvoicePage() {
    const { invoiceId } = useSafeParams('invoice');
  
    const invoice = useSuspenseQuery({
      queryKey: ['invoices', { invoiceId }],
      queryFn: () => fetchInvoice(invoiceId),
    });
  
    return (
      <main>
        <Invoice data={invoice.data} />
      </main>
    )
  };
  

  Use throughout your codebase as the single source for navigating between routes:

  import { routes } from "@/shared/navigation";
  
  export function Header() {
    return (
      <nav>
        <Link href={routes.home()}>Home</Link>
        <Link href={routes.customers()}>Customers</Link>
      </nav>
    )
  };
  
  export function CustomerInvoices({ invoices }) {
    return (
      <ul>
        {invoices.map(invoice => (
          <li key={invoice.id}>
            <Link href={routes.invoice({ invoiceId: invoice.id })}>
              View invoice
            </Link>
          </li>
        ))}
      </ul>
    )
  };