How to use VueJS axios-oauth-client and google photos api? - vuejs2

Question

I'm using vue cli and I try to get album list from my google photos account.
I'm using axios-oauth-client and I try to implement this code:
const axios = require('axios');
const oauth = require('axios-oauth-client');
const getAuthorizationCode = oauth.client(axios.create(), {
url: 'https://oauth.com/2.0/token',
grant_type: 'authorization_code',
client_id: 'foo',
client_secret: 'bar',
redirect_uri: '...',
code: '...',
scope: 'baz',
});
const auth = await getAuthorizationCode(); // => { "access_token": "...", "expires_in": 900, ... }
As described in here and I can't understand how do I get the authorization code aka code in this implementation.
I managed to do this call in postman but I'm unable to do it using axios.
Postman
My Code
async function getToken() {
const getAuthorizationCode = oauth.client(axios.create(), {
url: "https://oauth2.googleapis.com/token",
grant_type: "authorization_code",
client_id:
"**********.apps.googleusercontent.com",
client_secret: "***********",
redirect_uri: "http://localhost:8080/oauth2/callback",
code: "...",
scope: "https://www.googleapis.com/auth/photoslibrary.readonly"
});
const auth = await getAuthorizationCode(); // => { "access_token": "...", "expires_in": 900, ... }
console.log(auth);
}
getToken();
What am I doing wrong?
Thanks!
UPDATE
I still didn't manage to make it works but I found this answer which I will try to check.
UPDATE#2
Eventually I ended up using google documentation for Oauth2 using php and I took their git example as a base project.
In order to do it I also needed to use database to save the tokens and especially the refresh token which I use to refresh the access token every time I receive 401.