The Index #133 (October 13, 2023): Vector Search, and Building an AWS Lambda Serverless Function with Java

It’s FRIDAY! You know what that means…

:tada: Welcome to The Index! :tada:

Each week, we bring you the latest and greatest from our Developer Relations team — from blog posts and YouTube videos to meet-ups and conferences — so you don’t miss a thing.

:computer: What’s Up on Developer Center?

Everything you see on Developer Center is by developers, for developers. This is where we publish articles, tutorials, and beyond. :rocket:

Featured Post

Enhancing LLM Accuracy Using MongoDB Vector Search and Metadata by Ronny Hoesada

This article provides a comprehensive guide on enhancing the precision of your LLM outputs using MongoDB’s Vector Search and Unstructured Metadata extraction techniques.

Other Good Reads

:arrow_right: Unique Indexes Quirks and Unique Documents in an Array of Documents by @Artur_57972

:arrow_right: Instant GraphQL APIs for MongoDB with Grafbase by @Jamie_Barton

:spiral_calendar: Mark Your Calendars

Every month, all across the globe, we organize, attend, speak at, and sponsor events, meetups, and shindigs to bring the DevRel community together. Here’s what we’ve got cooking:

Stockholm Meetup: October 16th 2023, 8:30am – 11:30am, (GMT-07:00) Pacific Time
Thailand MUG: October 20th 2023, 7:30pm – October 21st 2023, 2:00am, (GMT-07:00) Pacific Time
DroidCon London: Oct 26, 2023 - Oct 27, 2023
India Virtual MUG: October 27th 2023, 10:00pm – October 28th 2023, 1:30am, (GMT-07:00) Pacific Time
SF AI Hackathon: November 4th 2023, 10:00am – 10:00pm, (GMT-07:00) Pacific Time

MongoDB is heading out on a world tour to bring the best, most relevant content directly to you! Join us to connect with MongoDB experts, meet fellow users building the next big thing, and be among the first to hear the latest announcements. Register now.

Use code DEVELOPERFAM50 to secure 50% off your ticket!

We’ve had a lot of MUGs (MongoDB User Groups) lately!

Our Frankfurt MUG was security-focused and organized by leaders Tim, Prabha, and Nicole. Torsten, Staff Curriculum Engineer at MongoDB, talked about field-level encryption. And MUG leaders Prabakaran and Raul spoke about client-side field-level encryption.

Our Toronto MUG leaders, @chris and @Grace_Gong, put together an amazing event at the Microsoft headquarters. There were around 80 attendees and three engaging talks. Prashant spoke about amplifying retail operations with generative AI. Lachlan shared his company’s journey with MongoDB. And our enthusiastic Community Creator Devang shared his experiences with using MongoDB cluster collection to boost query performance.


We had more than 60 people attend our inaugural Santa Catarina MUG. Big thanks to our leader and Community Creator Mateus for organizing this amazing first meetup in south Brazil.

We had two engaging sessions by Leonardi, and Community Creator Jessica talked about MongoDB beyond the database.

Incredible work by our Manila MUG leaders @Matthew_Seaver_Choy and @haifacarina. Matthew did a session on using NoSQL for e-commerce websites. And our experienced speaker @Raphael_Justin_Jambalos shared his experiences with the boundless possibilities of MongoDB.


Last was our MUG in Wellington. After seeing a lot of interest in Auckland’s MUG and MongoDB’s huge .local event in Auckland in August, @Jake_McInteer from MongoDB kicked off this event in Wellington. Tim shared how ECLI uses MongoDB deployed across multiple geographically separated data centers in New Zealand in order to meet the highest possible uptime requirements. And @Philipp_Waffler spoke about why working with documents in MongoDB is different from working with tabular structures in a SQL database.

Community Creator @Danielle_Monteiro delivered a captivating talk at the AWS UG Conference Peru, drawing in 100 attendees. Her session, “MongoDB Atlas Search and AWS: Why, when, how,” underscored the significance of informed decision-making in MongoDB Atlas usage and outlined key criteria for selecting AWS.


Community Creator Mateus was featured on Episode 2 of our Fala MongoDB Podcast where he discussed how HeroSpark innovated in the online education market by bringing a fast and intelligent platform in Brazil by implementing MongoDB.

Community Champion Elie delivered a talk at DevFest Beirut on how to use MongoDB to shape the next generation of intelligent applications.

And Community Champion Nuri authored a blog on testing out the new AI Query Generator added to MongoDB Compass, which was announced at MongoDB.local London.

:studio_microphone: Stop, Collaborate, and Listen

If reading’s not your jam, you might love catching up on our podcast episodes with Michael Lynn and Shane McAllister.

Recently, Shane sat down with MongoDB’s Shelby Carpenter and Julia Oppenheim.

Not listening on Spotify? We got you! We’re also on Apple Podcasts, PlayerFM, Podtail, and Listen Notes. (We’d be forever grateful if you left us a review.)

Have you visited our YouTube channel lately? We have new videos from Jesse Hall and Nic Raboy. You can also find The Index there!

Remember to view what live streams we’ve got coming up. You can click “Notify me” and YouTube will ping you when we’re about to go on.

That’ll do it for now, folks! Like what you see? Help us spread the love by tweeting this update or sharing it on LinkedIn.