Transferring data between pages in Next JS using App Route and Typescript

Seeking assistance to extract data from an array on one page and display it on another page. I am working with NextJs, Typescript, and AppRoute.

Code in app/page.tsx:

import Image from 'next/image'
import Link from 'next/link'

const listMember = [
  {
    id: 1,
    name: "name1",
    age: 20,
  },
    {
    id: 2,
    name: "name2",
    age: 18,
  },
    {
    id: 3,
    name: "name3",
    age: 2,
  }
]

export default function HomePage() {
  return (
    <>
      <ul className="px-5">
        {listMember.map(member =>
          <li>
            <Link
              href={{
                pathname: "/Detail",
                query: member.name
              }}>{member.name}</Link>
          </li>
        )}
      </ul>
    </>
  )
}

Code in app/Detail/page.tsx:

import HomePage from "../page";

export default function Detail() {
    return (
        <>
            <h1> 
                This is detail page of {HomePage.listMember.name}
            </h1>
        </>
    )
}

Attempted using route but encountered issues.

typescriptnext.jsnext.js13app-router

Answer №1

If you want to retrieve the list from your main page, start by exporting it:

export const memberList = [
  {
    id: 1,
    name: "John",
    age: 30,
  },
    {
    id: 2,
    name: "Jane",
    age: 25,
  },
    {
    id: 3,
    name: "Mike",
    age: 40,
  }
]

Next, on the detail page, access the query parameter and locate the parameter using this method:

import { useSearchParams } from 'next/navigation'
import HomePage, { memberList } from "../page";

export default function Detail() {
const searchParams = useSearchParams()
const name = searchParams.get('name')

  const member = memberList.find(member => member.name === name);

    return (
        <>
            <h1> 
                Welcome to the detail page of {member?.name}
            </h1>
        </>
    )
}

Answer №2

Modify to

export const memberList = [...
...

import {memberList } from "../page";

export default function Detail() {
    return (
        <>
            <h1> 
                Welcome to the detailed page of {memberList.name}
            </h1>
        </>
    )
}

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