In my own project I created the following class to have every database-related functionality in one place:

import { MongoClient, ObjectId } from "$atlas_sdk/mod.ts";

export class MongoDBDatabase {
  client: MongoClient;
  db;
  users;

  constructor() {
    this.client = new MongoClient({ ...  });
    this.db = this.client.database("db");
    this.users = this.db.collection<UserSchema>("users");
  }

  async insertUser(email: string, username: string) {
    const result = await this.users.insertOne({
      email,
      username
    });
    return result;
  }

  async getUserByEmail(email: string) {
    ...
  }

  ...
}

I was able to set the correct type for client as MongoClient, but since export statements were missing I couldn't set the types for db and users to Database and Collection respectively:

import { MongoClient, Database, Collection, ... } from "$atlas_sdk/mod.ts";

...
export class MongoDBDatabase {
  client: MongoClient;
  db: Database;
  users: Collection;
  ...
}

import { MongoClient, UUID } from "https://deno.land/x/[email protected]/mod.ts";

const client = new MongoClient({
  endpoint: "https://data.mongodb-api.com/app/YOUR_APP_ID/endpoint/data/v1",
  dataSource: "YOUR_CLUSTER_NAME",
  auth: {
    apiKey: "YOUR_API_KEY",
  },
});

await client.database("sampleDatabase").collection("sampleCollection").insertOne({
  sampleUUID: new UUID(),
})

Error when trying to create document with uuid

error: Uncaught BSONTypeError: Unrecognized or invalid _bsontype: UUID
        throw new BSONTypeError(
              ^
    at serializeDocument (https://deno.land/x/[email protected]/src/extended_json.ts:318:15)
    at serializeValue (https://deno.land/x/[email protected]/src/extended_json.ts:253:12)
    at serializeDocument (https://deno.land/x/[email protected]/src/extended_json.ts:300:22)
    at serializeValue (https://deno.land/x/[email protected]/src/extended_json.ts:253:12)
    at serializeDocument (https://deno.land/x/[email protected]/src/extended_json.ts:300:22)
    at serializeValue (https://deno.land/x/[email protected]/src/extended_json.ts:253:12)
    at Module.stringify (https://deno.land/x/[email protected]/src/extended_json.ts:469:15)
    at Collection.callApi (https://deno.land/x/[email protected]/client.ts:216:19)
    at Collection.insertOne (https://deno.land/x/[email protected]/client.ts:81:17)

I basically copied the example on the docs and am getting the error in the title.

code:

import {
  MongoClient,
  ObjectId,
} from "https://deno.land/x/[email protected]/mod.ts";
import { config } from "https://deno.land/x/[email protected]/mod.ts";

const client = new MongoClient({
  endpoint: `https://data.mongodb-api.com/app/${
    config().DB_APP_ID
  }/endpoint/data/v1`,
  dataSource: config().DB_DATA_SOURCE,
  auth: {
    apiKey: config().DB_API_KEY,
  },
});

interface Users {
  _id: ObjectId;
  name: string;
  email: string;
}

const db = client.database(config().DB_NAME);
const users = db.collection<Users>("users");

// error is here
users.insertOne({ // <---
  name: "John Doe",
  email: "[email protected]",
});

error:

Argument of type '{ name: string; email: string; }' is not assignable to parameter of type 'Users'.
  Property '_id' is missing in type '{ name: string; email: string; }' but required in type 'Users'.deno-ts(2345)

Update:

This was proposed by Github Copilot and seems to work:

users.insertOne({
  name: "John Doe",
  email: "[email protected]",
  _id: new ObjectId(),
});

Update:

Works: