MongoDB upsert an array of objects from a list - node.js

Question

I am working on moving my database from sqlite3 to mongo. I went
through mongo university, yet I'm not sure I have found a really good
example of upsertting in bulk.
Use case : user uploads a data file with a list of players and their stats. The app needs to either update a player or add a new player if they do not already exist.
Current Implementation : Function takes a list of Players and creates SQL statement.
let template = '(Player.Rank, Player.Player_ID, Player.Player, Player.Score, TTP, 1),(Player.Rank, Player_ID, ...) ... (... TTP, 1)';
const stmt = `INSERT INTO playerStats (Rank, Player_ID, Player, Score, TPP, Games_Played)
VALUES ${template}
ON CONFLICT(Player_ID) DO UPDATE
SET Score = Score+excluded.Score, TPP=TPP+excluded.TPP, Games_Played=Games_Played+1`;
db.run(stmt, callback);
Im hoping to have each document be a league which contains players, games, and managers.
Mongo DB document template
{
"LEAGUE_ID": "GEO_SAM",
"Players": [
{
"id": "PlayerID",
"name": "Player",
"score": "Score",
"rank": "Rank",
"xPlayed": "Games_Played",
"ttp": "TTP"
}
],
"Managers": [
{...}
],
"Games": [
{...}
]
}
I am totally lost and not sure how to get this done. Do I need to create a loop and ask mongo to upsert on each iteration? I have searched through countless examples but all of them use static hard coded values.
Here is my testing example.
const query = { League_id : "GEO_SAM", Players.$.id: $in{ $Players }};
const update = { $inc: { score: $Player.Score}};
const options = { upsert: true };
collection.updateMany(query, update, options);
I also don't understand how to pass the entire player object to push to the array if the player_id isn't found.

Answer 1

My solution was to create a metaData field containing the league ID with a single player. If anyone else has a better solution I would love to hear from you.
{
MetaData: { "LEAGUE_ID": "GEO_SAM"},
Player: {
"id": "PlayerID",
"name": "Player",
"score": "Score",
"rank": "Rank",
"xPlayed": "Games_Played",
"ttp": "TTP"
}
}
Then I mapped over the values and inserted each one.
client.connect().then((client) => {
const db = client.db(dbName);
const results = Players.map((player) => {
db.collection('Players').updateOne(
{ Player_Name: player.Player_ID },
{
$setOnInsert: {
Player_ID: player.Player_ID,
Player: player.Player,
Rank: player.Rank,
},
$inc: { Score: player.Score, Games_Played: 1, TPP: player.TPP },
},
{ upsert: true, multi: true },
);
});