Insert data to MongoDB Atlas in an Atlas Function called by a HTTPS Endpoint

insertWeeklyData.js

// This Gist goes with the article at http://dacharycarey.com/2023/11/01/hackathon-part-1/

// This function is the endpoint's request handler.
exports = function({ formData, headers }, response) {
    // Data can be extracted from the request as follows:

    // Headers, e.g. {"Content-Type": ["application/json"]}
    const contentTypes = headers["Content-Type"];
    
    // The "formData" here is the form data sent from Google Analytics
    console.log("Form data", JSON.stringify(formData));

    // Querying a mongodb service:
    const sdkDocsCollection = context.services.get("mongodb-atlas").db("DeviceSDK").collection("SDKDocs")
    const mongoDBQuery = { "url": formData["url"] };
    
    const dateAsDateTime = new Date(formData["date"]);
    
    function getWeek(date) {
      if (!(date instanceof Date)) date = new Date();
    
      // ISO week date weeks start on Monday, so correct the day number
      var nDay = (date.getDay() + 6) % 7;
    
      // ISO 8601 states that week 1 is the week with the first Thursday of that year
      // Set the target date to the Thursday in the target week
      date.setDate(date.getDate() - nDay + 3);
    
      // Store the millisecond value of the target date
      var n1stThursday = date.valueOf();
    
      // Set the target to the first Thursday of the year
      // First, set the target to January 1st
      date.setMonth(0, 1);
    
      // Not a Thursday? Correct the date to the next Thursday
      if (date.getDay() !== 4) {
        date.setMonth(0, 1 + ((4 - date.getDay()) + 7) % 7);
      }
    
      // The week number is the number of weeks between the first Thursday of the year
      // and the Thursday in the target week (604800000 = 7 * 24 * 3600 * 1000)
      return 1 + Math.ceil((n1stThursday - date) / 604800000);
    }
    
    const weekNumber = getWeek(dateAsDateTime);
    
    const dataOfAppropriateTypes = {
      "bounce_rate": parseFloat(formData["bounce_rate"]),
      "pages_per_session": parseFloat(formData["pages_per_session"]),
      "users": parseInt(formData["users"]),
      "avg_session_duration": parseInt(formData["avg_session_duration"]),
      "unique_pageviews": parseInt(formData["unique_pageviews"]),
      "sessions": parseInt(formData["sessions"]),
      "session_duration": parseInt(formData["session_duration"]),
      "year": dateAsDateTime.getFullYear(),
      "week_number": weekNumber
    }
    
    const update = {
      "$push": {
        "weekly_data": dataOfAppropriateTypes
      }
    }
    
    const options = { "upsert": false };

    sdkDocsCollection.updateOne(mongoDBQuery, update, options)
      .then(result => {
      const { matchedCount, modifiedCount } = result;
      if(matchedCount && modifiedCount) {
        console.log(`Successfully updated the item.`)
      }
      })
      .catch(err => console.error(`Failed to update the item: ${err}`))
};