Data read from the db using the endpoint appears as undefined

I used the second method found at https://stackoverflow.com/a/70799801 and applied it to my source.

The version of sveltekit I am currently using is 1.0.0-next.73.

However, when I printed the data to the console, I could only see undefined.

Below is my source code:

/lib/db/mysql.js

import mysql from 'mysql2/promise';

let mysqlconn = null;

export function mysqlconnFn() {
      if (!mysqlconn) {
            mysqlconn = mysql.createConnection({
                  host: 'localhost',
                  port: 3307,
                  user: 'dbuser',
                  password: 'dbpassword',
                  database: 'dbname'
            });
      }

      return mysqlconn;
}

/routes/index.server.js

import { mysqlconnFn } from '$lib/db/mysql';

export async function get() {
      let mysqlconn = await mysqlconnFn();

      let results = await mysqlconn.query('SELECT * FROM list_user')
            .then(function ([rows, fields]) {
                  // console.log(rows);
                  return rows;
            })
            .catch(() => {
                  console.log("err")
            })

      return { results }
}

/routes/index.svelte

<script>
      export let data
      import { onMount } from "svelte"

      onMount(() => {
            console.log(data)
      });
</script>

I'd be grateful if you could tell me where I went wrong and how to fix it.

Files in routes have to be called:

• +page.svelte
• +page.js/ts
• +page.server.js/ts
• +server.js/ts

So not index, also if you want data to load, the function (in +page.server.js/ts) has to be called load.