Request Validation in Next.js

route.tsx

import { ZodError, z } from "zod";

interface RequestBody {
  name: string;
}

const RequestBody = z.object({
  name: z.string(),
});

export async function POST(request: Request) {
  try {
    const body = RequestBody.parse(await request.json());

    return Response.json({ message: body.name });
  } catch (error) {
    if (error instanceof ZodError) {
      console.log(error);
      return new Response("Invalid Data", { status: 400 });
    } else {
      return new Response("Bad Request", { status: 400 });
    }
  }
}