I am trying to load the following array with 2 object in the below league model.

The array that I want to load:

module.exports = [
    {
        title: "Osdorp StraatVoetbal",
        location: "Osdorp",
        city: "Amsterdam",
        lat: 52.3599,
        lon: 4.7891,
    },
    {
       title: "Slotervaart StraatVoetbal",
       location: "Slotervaart",
       city: "Amsterdam",
       lat: 52.3562,
       lon: 4.8273,
    }
];

The League model:

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const LeagueSchema = new Schema ({
    title: String,
    location: String,
    city: String,
    lat: Number,
    lon: Number
});

module.exports = mongoose.model('League', LeagueSchema);

I am using the following function to load the array, but getting TypeError.

const mongoose = require('mongoose');
const League = require('../models/league');
const leagues = require('./leagues');

mongoose.connect('mongodb://localhost:27017/footballeagues', {
    useNewUrlParser: true,
    useUnifiedTopology: true,
});

const db = mongoose.connection
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', ()=>{
    console.log("Mongoose Database connected")
});

const seedDB =  async() => {
    leagues.forEach( async (i)=>{
        const seedLeague = new League({
            title : `${leagues[i].title}`,
            location : `${leagues[i].location}`,
            city: `${leagues[i].city}`, 
            lat: `${leagues[i].lat}`,
            lon: `${leagues[i].lon}`
        })
        await seedLeague.save();
    })
}

seedDB().then( ()=>{
    mongoose.connection.close;
    //console.log('connection closed')
})

Could someone please help and advise me how to fix the below error: