API

DubJUG 265, our live in-person event, presents Professor Ž (aka Željko Kozina!) Hear why Netflix dumped REST in favour of GraphQL and explore how memory management improves performance, the different parts of Java memory and the various garbage collectors. OFFICIAL BOOKING >>>>> https://ti.to/dublin-java-user-group/265-zeljko-kozina ## **Talk 1:** Netflix dropped REST, but should you? Last year, Netflix announced that it was dropping REST completely in favour of GraphQL. It is undoubtedly one of the popular kids on the Development playground right now. GraphQL is a new way to build APIs, one that's easier, faster, better, and more flexible than the old RESTful API system, or at least that's the promise. In this session, a REST developers' Assessment of Spring GraphQL, Željko will cover the basics of Spring GraphQL, explore its strengths and weaknesses, and determine whether it is a better option for your company than a conventional REST API. ## **Talk 2:** Trash Talk - Optimising Java Garbage Collection Understanding how Java organises memory is important for every Java professional, but this particular topic is a common knowledge gap for many software professionals. With the help of Željko, this talk explores how memory management can help you improve performance effectively, helping you understand the different parts of Java memory and the various garbage collectors so you can select your preferred one.

**IMPORTANT UPDATE:** Due to a fire incident at Kyodai Izakaya, It's been **temporarily closed**. Let's meet at J.R Mahon's on 1-2, Burgh Quay, Dublin 2 (across the river from Izakaya Kyodai). We still need a venue for presentations. If anyone can help, please get in touch (e.g. via Discord). The minimum requirement is a room with a screen, or projector. We have a Discord server, which you're welcome to join: https://discord.gg/nCBrCXB6 Clojure Ireland is sponsored by [Taxamo - a Vertex Company](https://twitter.com/taxamo).

***[Save 50% getting a ticket in advance (only first 20 people)](https://www.eventbrite.ie/e/social-language-exchange-tickets-1985534555304?discount=EarlyBirdsMeetup&keep_tld=true)*** **✨ Dynamic Conversations** Enjoy small-group conversations (2–3 people per table) at dedicated language tables. There will always be **English-only tables**, and every attendee rotates through these tables during the **first and last rotation**. **🏷️ Language Stickers on Arrival** As soon as you arrive, you’ll receive: • **Native language stickers** (with flags + “native”) • **Practicing language stickers** (with flags + “practicing”) You may choose multiple practicing languages. These stickers help you join the right tables and connect with people who match your goals. **🔄 Rotations Every 30 Minutes** Every 30 minutes, the organizer rearranges groups based on preferred languages. We aim for **bilingual tables**, ideally with at least one native or advanced speaker. If no native speakers are available, we can still create a table as long as **two people want to practice the same language**. **🌍 Popular Languages** English, Spanish, French, German, Portuguese, Italian, and any other language requested by at least two attendees. **📈 All Levels Welcome** Beginner or advanced—everyone is welcome. The only requirement is enthusiasm and willingness to communicate. **🃏 Conversation Cards + Complimentary Fries** Need inspiration? Conversation cards are available at every table. Enjoy complimentary **fries around 8:00 PM**. **💸 Pay-as-you-go (Cash / Card)** • €6 General Admission • €5 Students • €4 per person when you bring friends **⭐ Loyalty Card (Automatically Activated)** Attend **4 Language Exchanges or International Meetups**, and your **5th event is FREE**. **💳 [Membership Options (Save € & unlock perks)](https://buymeacoffee.com/newindublin)** **🟡 Regular Membership (€12/mo)** ✔ Free: Singles, Language Exchange, International Meetup ✔ –50%: Quizzes, Big Singles, Theme Party, Cultural Mix, Social Games, Music Challenge ✔ Extra perks **🔵 Theme Membership (€15/mo)** ✔ Free: Quizzes, Big Singles, Theme Party, Cultural Mix, Social Games, Music Challenge ✔ –50%: Singles, Language Exchange, International Meetup ✔ Extra Perks **🟣 Complete Membership (€20/mo)** ✔ Free access to ALL events ✔ Extra Perks **📱 Stay Connected** 🔗 **[Linktree](https://linktr.ee/newindublin)**[ ](https://linktr.ee/newindublin)– full weekly calendar 💬 **[WhatsApp](https://chat.whatsapp.com/L8IcUuQzHVVLGaoUZ8ONRt)**[ ](https://chat.whatsapp.com/L8IcUuQzHVVLGaoUZ8ONRt)– reminders & updates 📘 **[Facebook](https://www.facebook.com/newindublinmeetup)**[ ](https://www.facebook.com/newindublinmeetup)– photos & highlights 📸 **[Instagram](https://www.instagram.com/newindublinmeetups/)**[ ](https://www.instagram.com/newindublinmeetups/)– stories & behind-the-scenes 🌐 **[Website](https://newindublin.net/)**[ ](https://newindublin.net/)– all information about our events **🎉 Join Us!** A fun, relaxed evening full of languages, new people, and confidence-building conversations. **RSVP now! 🚀**

Most language exchanges are built around **movement**. —fast rotations, brief chats, surface-level conversation. New table. New person. Start again. It feels productive. It isn’t. Real conversations don’t happen in 10 minutes. They start there. Then they get interesting. At Flip Lingoes, **you stay.** Same table. Same group. Enough time for real conversation and real connection, beyond the surface level. Every 5 minutes, you switch roles: **fluent speaker ↔ learner**, not people. Before you arrive, **[create a profile here](https://www.fliplingoes.com/language-exchange-dublin/)**[,](https://www.fliplingoes.com/language-exchange-dublin/) tell us what language you're learning. This helps our **automated matching algorithm** put you in the right small group. No awkward searching. No guesswork. Simply scan the QR code on arrival and it automatically matches you with fluent speakers of your target language. We host events at Zanzibar Locke: calm, well-designed, easy to hear, easy to focus. *** **Event Flow** 6:45–7:15 → Seamless check-in (QR code, get matched, sit down) 7:15–8:30 → Language Exchange (structured, focused) 8:30 → Optional social + snacks included **Crispy chicken wings. Cheesy loaded nachos.** Straight from Zanzibar Locke’s kitchen. Perfect for chatting, relaxing, and refueling after a great language session. **Entry:** €8 (tasty snacks included) **Bundles:** 4 events €24 \| 10 events €50\, purchase [here](https://www.fliplingoes.com/language-exchange-dublin/?pricing_filter=in_person#bundles-section) in advance for express check in. Save time and money. **Be generous and invite a friend for free:** It's simple. Create a profile [here](https://www.fliplingoes.com/language-exchange-dublin/), log in, and click “**Invite Friend** to sign up.” It generates a link and you send that to them. Easy and your friend will thank you later ;) If they register for the event before you, you both get free entry.🙌 \*P.S We ask if you consider to buy a drink at the bar upon arrival and support their venue and excellent hospitality in the heart of Dublin. *** **Why Flip Lingoes works:** * Go deeper: longer conversations at the same table * Speak with the right people via automated matching * Smooth, calm, focused environment * Fun social finish If you’re tired of restarting conversations and want to **actually speak beyond the greeting and small talk**, this is your place. [Flip Lingoes](https://www.fliplingoes.com) is a new and innovative language exchange event, with a clear vision: **To upgrade language exchange events online and in cities around the world.** Currently in Dublin, Zurich and Online. **Can you guess our next city?** **Flip into our world:** **[On Instagram](https://www.instagram.com/fliplingoes/)** **[Sign up to FlipLingoes.Com](https://www.fliplingoes.com/language-exchange-dublin/)** ***

☘️Déanaimid iarracht Pop Up Gaeltacht a dheanamh. Don't worry if your Irish isn't the best. Tá sé oscailte to gach duine who wants to give irish a go! 🙌 Beidh sé saor in aisce. The event starts at 7pm and we'll place you in the specific Pop Up Gaeltacht groups. You won't miss us, there will be a big sign with "Pop up Gaeltacht" written on it! Ag tnúth le bualadh libh! ✌️💚 Note: We will be organising a paid language exchange in the same place, be aware this is not the same set up and you don't have to pay for the Pop-Up Gaeltacht. Simply walk through and join the Pop-Up Gaeltacht table. **Cad is Pop-Up Gaeltacht ann?** Is cruinniú neamhfhoirmiúil é Pop-Up Gaeltacht de chainteoirí Gaeilge ar leibhéil éagsúla (go minic i mbeár) áit ar féidir leo bualadh le chéile agus comhrá a dhéanamh in atmaisféar cairdiúil. I mBaile Átha Cliath is féidir le suas le 300 duine freastal ar chruinnithe mar seo, agus reáchtáladh imeachtaí den chineál céanna thar lear freisin. Tá an bealach isteach saor in aisce agus tá fáilte roimh gach leibhéal. **What is a Pop Up Gaeltacht?** A Pop-Up Gaeltacht is an informal gathering of Irish speakers of various abilities (often in a bar) where they can meet and talk in a convivial atmosphere. In Dublin such gatherings can number up to 300 people, and similar events have been held abroad. Entrance is free and all levels are welcome. **Cé hé Flip Lingoes?** Eagraímid malartuithe teanga seachtainiúla agus anois táimid chun Pop Up Gaeltacht mhíosúil saor in aisce a eagrú chun tacú leis an nGaeilge. Tá súil againn gur féidir leat cabhrú linn an Gaeilge a thabhairt chun beatha, táimid ag tnúth go mór leis! 🇮🇪 **Who is Flip Lingoes?** We organise weekly language exchanges and now we're going to organise a free monthly Pop Up Gaeltacht to support the Irish language. We hope you can help us bring the Irish language to life, we're really looking forward to it! 🇮🇪

## Details The title of the event is a paradox! Read in silence and then discuss with like-minded folks! :-) 📝 **How does this work?** We will meet in the Bartley's Restaurant area from 7:00 PM to 8:15 PM for silent reading and followed up by discussion. **During silent reading, you're expected to remain silent and read.** Please bring your headphones and refrain from the discussion during the first one hour in the area. 👥 **Socialising** After an hour, at 8:15 PM, we'll discuss and socialize about the book you're reading. We highly encourage you to move between tables and strike up conversations with fellow book lovers. These discussions about literature and reading recommendations are often the highlight of the event! Feel free to join at any point during the event. The event is indoors, hopefully, we can continue the tradition of the silent reading in the winter! **📌 Helpful Tips and Notes** * Bring headphones to block out surrounding noise * I will post a comment on the event page when I arrive to indicate where we're seated, so everyone can find us * If you prefer to skip the silent reading, you can join directly at the bar at 8:15 PM ⚠️**Something Happened?** If something unpleasant happened to you, it may happen to others. It may be small but don't hesitate to reach out to me. Looking forward to meeting you all 😊

💻 **Build Your AI Agent – OpenClaw Masterclass** Create a working AI agent from your browser in one session. No prior coding needed. ⚠️ RSVP alone won't hold your spot — complete registration below to confirm. ### [🔗 CLAIM YOUR PLACE](https://remoteready.io/product/OpenClawMasterclass?city=Dublin&groupurlname=circle-of-passive-income-strategy-seekers&startgmtdatetime=2026-05-06T17:00:00Z) --- What you get: - A real, working AI agent by the end of the session - Practical skills to automate tasks that eat your time - A browser-based setup you can use immediately *Don't just use AI. Build it.* 🤖

🔐 **Hack and Chill – Weekly Meetup** 🔐 📍 **Tog Hackerspace** \| 🕖 **Fridays, 7–9 PM** *(Except the first Friday of the month – we’re at 2600 Dublin then!)* Are you into cybersecurity, hardware hacking, or just love the hacker mindset? Bring your laptop, your curiosity, and your latest digital mischief to our chill Friday night sessions. No talks, no pressure — just hacking, learning, and chatting with like-minded folks in a relaxed space. 💻 BYO projects, hacks, and war stories ☕ Tea, tools, and toggers provided 💬 New faces always welcome Come hang out. We don’t bite — unless you’re a vulnerable service. https://www.tog.ie/2025/08/new-weekly-group-night-hack-and-chill/

Vision Language Models (VLMs) such as LLaVA, Qwen-VL, Nemotron VL and GPT-4o have unlocked a new era in AI where language and sight converge into a single reasoning system. These models can describe images, answer visual questions, read documents, and interpret charts — but their true power emerges when you fine-tune them on domain-specific data, teaching them to see and reason about the visual world that matters to you. In this hands-on session, we walk through the full fine-tuning pipeline for vision-language models. We begin by understanding how these architectures work — how a visual encoder like CLIP or SigLIP is coupled with a large language model through a projection layer, and how the interplay between image tokens and text tokens enables multimodal reasoning. We then move into the practical side: preparing image-text datasets, choosing the right fine-tuning strategy (full fine-tuning vs. LoRA vs. QLoRA), configuring training with frameworks like Hugging Face Transformers and PEFT, and evaluating results on real-world benchmarks. We will also discuss when and why fine-tuning a VLM is the right approach compared to alternatives like prompt engineering or retrieval-augmented generation, and how to avoid common pitfalls such as catastrophic forgetting, overfitting on small visual datasets, and misaligned image-text pairs. Bring your laptop, your curiosity, and — if you have one — a dataset you would like to try. By the end of the session you will have a clear, reproducible workflow for adapting any open-source vision-language model to a custom task. \*\*📅 Open to all levels — no prerequisites, just curiosity.\*\*

Hi all, Our first Meetup will be a casual get-together for anyone interested in Time Series Analytics, Forecasting, and Data Analytics. The idea is simple: meet new people, share your background, talk about your work/study experience, exchange ideas, and enjoy a coffee or a beer together in a relaxed atmosphere. We’ll meet at the bar on the ground floor of the Camden Court Hotel Camden Street Lower, Saint Kevin's, Dublin, D02 W086 www.camdencourthotel.com/en/ I’ll be there, so feel free to join! See you soon! Simone

📚Reading books and discussing them are two distinct experiences! Conversations about books and sharing insights help us better appreciate literature and enrich our lives. Let's grab a drink (alcoholic or non-alcoholic) and discuss books we're currently reading or have recently enjoyed—whether poetry, fiction, or non-fiction. Bring your physical book or e-reader. There's no formal structure or agenda—just books and good conversation.💬 It's a perfect place to get book recommendations and rediscover your reading momentum if you've hit a slump. We welcome readers of all backgrounds and interests! ⚠️**Something Happened?** If something unpleasant happened to you, it may happen to others. Even if it seems minor, don't hesitate to reach out to me. 🔍 **How to find us?** * When I reach the venue, I'll leave a comment in the meetup where the group is seated. Normally, the booking is in my name, so you can ask the staff for the group. * If you're unable to find us, leave a comment in the meetup page. I'll be able to guide you. We highly encourage you to move between tables and strike up conversations with fellow book lovers. These discussions about literature and reading recommendations are often the highlight of the event! As an organizer, I'm always looking for feedback about the event and suggestions for new events, so feel free to suggest ideas to me. 💡 I look forward to seeing you all! 😊

**[50% OFF TICKETS (first 30)!](www.eventbrite.com/e/1986198829165/?discount=EarlyBirds)** 🌍 **International Cultural Mix – Celebrate Cultures, Meet People, Have Fun** Welcome to one of Dublin’s most social, colourful and international Saturday nights. A vibrant mix of games, challenges and cultural surprises that help you meet people from all around the world in the most natural and fun way. Perfect for newcomers, locals, travellers and anyone who loves learning about different countries and cultures. Expect a warm and friendly atmosphere, plenty of movement, team missions and drink tokens for the winners. You don’t need to come with friends — you’ll meet dozens of people within minutes. **🧩 What to Expect** Welcome & Flag Stickers 🔥 *Passport Around the World* 🌐 *Global Connections* 🌎 *Chain of Nations* ⏸ Break 🗺️ *Travel Map Challenge* 🌏 *Continents Unite* 📸 Closing & Group Photo **💸 Pay-as-you-go (Cash / Card)** • €10 General Admission • €8 per person in groups (2-3 people) • €6 per person in groups (4-6 people) **💳 [Membership Options (Save € & unlock perks)](https://buymeacoffee.com/newindublin)** **🟡 Regular Membership (€12/mo) [€8/mo till February 1st]** ✔ Free: Singles, Language Exchange, International Meetup ✔ –50%: Quizzes, Big Singles, Theme Party, Cultural Mix, Social Games, Music Challenge ✔ Extra perks **🔵 Theme Membership (€15/mo)** ✔ Free: Quizzes, Big Singles, Theme Party, Cultural Mix, Social Games, Music Challenge ✔ –50%: Singles, Language Exchange, International Meetup ✔ Extra Perks **🟣 Complete Membership (€20/mo)** ✔ Free access to ALL events ✔ Extra Perks **📱 Stay Connected** 🔗 **[Linktree](https://linktr.ee/newindublin)**[ ](https://linktr.ee/newindublin)– full weekly calendar 💬 **[WhatsApp](https://chat.whatsapp.com/L8IcUuQzHVVLGaoUZ8ONRt)**[ ](https://chat.whatsapp.com/L8IcUuQzHVVLGaoUZ8ONRt)– reminders & updates 📘 **[Facebook](https://www.facebook.com/newindublinmeetup)**[ ](https://www.facebook.com/newindublinmeetup)– photos & highlights 📸 **[Instagram](https://www.instagram.com/newindublinmeetups/)**[ ](https://www.instagram.com/newindublinmeetups/ "https://www.instagram.com/newindublinmeetups/")– stories & behind-the-scenes 🌐 **[Website](https://newindublin.net/)**[ ](https://newindublin.net/)– all information about our events

**Hello Mishmashers 👋** Excited to see you at our next meetup! Here's what you can look forward to: 💬 **Great chats with lovely people**! whether you're a local or from the other side of the world, you’re very welcome here! 🌍 **Not a native English speaker?** Awesome, you’ll get to practice with native speakers in a relaxed, no-pressure setting. 🇮🇪 **Are you a native English speaker?** Cool! Chat in English or find someone to practice another language with. Why not mix it up? ✨ We’re a **diverse, super-friendly, and inclusive bunch**, open to everyone, whether you’re shy, outgoing, or somewhere in between. 🎯 Our awesome organizers are always around to make sure things run smoothly and everyone feels included. 💡 One of the nicest things we hear again and again: even introverts feel at ease here. That’s something we’re really proud of. 🤝 **Instant connections!** You might walk in alone, but you'll probably leave with new friends. 📅 **This Saturday at 2:30pm!** We’ll be downstairs around the big oval table at a much-loved venue that's perfect for easy-going conversations and real connection. 🎉 **Theme: “International Mishmash”**: A chill space for people from all over (including Ireland!) to swap stories, share laughs, and practice languages if you fancy. (Shout-out to our lovely Irish regulars!) 🍻 **And after?** At 5pm, we’ll head over to the nearby **RIOT Pub** for tasty burgers and proper pints. Always a good time!!! *** **Want to support the group? 🙏** Running this thing costs over €200 a year (yep, all out of pocket for now 😅). If you’d like to chip in, we’d really appreciate it: * [PayPal](https://paypal.me/meetuppay) * [Revolut](https://revolut.me/michelf9a) (you can pay with your card, no need to be on Revolut!). Your help keeps the group going and opens the door for even more cool events (like day trips and gigs!). Cheers and see you soon! **– Michele & the Meetup Crew**

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Join us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability. You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/