cant get current user with axios get - axios

Question

In my API is the current user (I have logged in with passport) but when I make an Axios get request the data field is empty. I absolutely don't know what to do :(
<script>
import axios from "axios"
export default {
name: 'Home',
components: {
},
data: function() {
return {
user: axios.get('http://127.0.0.1:3000/api/').then(response => this.user = response)
}
},
methods: {
}
}
</script>
Here is the output:
Here is my API:
Edit: Here is my Backend File:
const express = require('express');
const bodyParser = require('body-parser')
const mongoose = require('mongoose')
const cors = require('cors')
const passport = require('passport')
let LocalStrategy = require('passport-local').Strategy;
const session = require('express-session')
var app = express();
app.use(bodyParser.json())
app.use(bodyParser.urlencoded({
extended: true
}));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
const port = 3000
app.use(cors({
methods:['GET','POST'],
credentials: true
}))
app.use(express.static('public'))
//Passport setup
app.use(session({
secret: 'test',
resave: false,
saveUninitialized: false,
secure: true
}))
app.use(passport.initialize());
app.use(passport.session());
passport.serializeUser(function(user, done) {
done(null, user);
});
passport.deserializeUser(function(user, done) {
done(null, user);
});
const apiRoutes = require('./apiRoutes')
app.use(cors())
app.use('/api', apiRoutes)
// connect to database
mongoose.connect('mongodb+srv://#cluster0.dhsiv.mongodb.net/test?retryWrites=true&w=majority',
{useNewUrlParser: true, useUnifiedTopology: true}, () => {
console.log('Erfolgreich connected')
})
app.listen(port, () => {
console.log('server is running on port '+port)
})
module.exports;
I hope someone can help me. Thanks a lot guys :)
i have also change my data and run the axios get in mounted but it doesnt change anything.
Routes:
const { _ } = require('core-js');
const { Mongoose } = require('mongoose');
const { find, where } = require('./models/userModel');
const userModel = require('./models/userModel');
let router = require('express').Router();
const bcrypt = require('bcryptjs')
const passport = require('passport');
const LocalStrategy = require('passport-local').Strategy;
let jwt = require('jsonwebtoken');
const { static } = require('express');
require('./passportConfig')
router.get("/", (req, res) => {
res.json({
user: req.user
});
});