axios get url response - no data in calling function in setInterval

I'm trying to use setInterval which should perform a fetch every 60 secs. The axios response data has a valid value but if i try to assign it to a variable, it does not work.

Am I missing something?

async function fetch_data() {
axios
    .get("https://url.tld/data")
    .then((res) => {
        console.log(res.data); // shows data
        return res.data;
    })
    .catch((error) => {
        callback({ success: false, error: "could not fetch data" });
    });
}

setInterval(async () => {
let data = null;
  try {
    data = await fetch_data();
    console.log("Fetched data:", data); // is null
  } catch (error) {
    console.error("Error fetching data:", error);
  }
}, 60000);

The main issue is that the fetch_data function is not properly returning the fetched data.

const axios = require('axios'); // Ensure axios is imported

async function fetch_data() {
try {
    const res = await axios.get("https://url.tld/data");
    console.log(res.data);
    return res.data;
  } catch (error) {
    console.error("Error fetching data:", error);
    return null;
  }
}

setInterval(async () => {
  try {    const data = await fetch_data();
    console.log("Fetched data:", data); 
  } catch (error) {
    console.error("Error fetching data:", error);
  }}, 60000);