taskService.js

const connectDB = require('./db')
const { ObjectID } = require('mongodb')

module.exports = {
  createTask: async ({ task }) => {
    const inputTask = Object.assign(task)
    let db
    let newTask

    try {
      db = await connectDB
      newTask = await db.collection('tasks').insertOne(inputTask)
      inputTask._id = newTask.insertedId
    } catch (error) {
      console.log(error)
    }

    return newTask
  },
  getTasks: async () => {
    let db
    let tasks = []

    try {
      db = await connectDB()
      tasks = await db.collection('tasks').findOne({ _id: ObjectID(_id) })
    } catch (error) {
      console.log(error)
    }

    return tasks
  }
}