Trouble hoisting access token from axios.post request

API
4 
{import axios from 'axios';

let API_KEY = "MyClientId";
let accessToken;

axios.post('https://id.twitch.tv/oauth2/token?client_id=MyClientId&client_secret=MyClientSecretId&grant_type=client_credentials')
    .then(response => {
        accessToken = response.data.access_token;
        console.log(accessToken); // shows the token fine here

let twitchApi = axios.create({
    headers: {
        "Authorization": "Bearer " + accessToken,
        "Client-ID": API_KEY
    }
});

    })

export default twitchApi;}

It’s dumbest fix as I have no idea what else you are doing here