Theo's Typesafe Cult•5mo ago

Nextjs 14 App Router fetch data as the searchParams change

I use App router in Nextjs 14. I'm having a problem fetching my data from page component as I change the searchParams in client component using params.set and params.delete. It is causing Hydration error. Can somebody guide me?

1 Reply

Stepan•5mo ago

the way I did it in one of my apps was using router.push for your page using params make sure you're taking searchParams from the page props like this:

interface PageProps {
    searchParams: Record<string, string | undefined>;
}

export default async function Page({ searchParams }: PageProps) {
  // page logic here
}

interface PageProps {
    searchParams: Record<string, string | undefined>;
}

export default async function Page({ searchParams }: PageProps) {
  // page logic here
}

and in your client component:

const router = useRouter();
const pathname = usePathname();
const searchParams = useSearchParams();

const setParam = (param: string, value: string) => {
  const current = new URLSearchParams(
    Array.from(searchParams.entries()),
  );
  
  current.set(param, value); // or current.delete(param)
  
  // cast to string
  const search = current.toString();
  const query = search ? `?${search}` : "";
  
  router.push(`${pathname}${query}`);
}

const router = useRouter();
const pathname = usePathname();
const searchParams = useSearchParams();

const setParam = (param: string, value: string) => {
  const current = new URLSearchParams(
    Array.from(searchParams.entries()),
  );
  
  current.set(param, value); // or current.delete(param)
  
  // cast to string
  const search = current.toString();
  const query = search ? `?${search}` : "";
  
  router.push(`${pathname}${query}`);
}

not sure if this is the correct way to work with searchParams in app router but it worked fine for me

Gaming

Programming

Nextjs 14 App Router fetch data as the searchParams change