WeAreDevelopers Logo WeAreDevelopers
Sign in
For You LIVE
World Congress 2025 • Aug 20, 2025 • Session details

Building AI Applications with LangChain and Node.js

Julián Duque

Think Python is required for agentic AI? Discover how to leverage Node.js and LangChain to orchestrate complex LLM reasoning and build robust multi-agent architectures.

Pause
Mute Enter Fullscreen
#1 about 1 min

Building agentic artificial intelligence applications using Node.js

How to leverage JavaScript ecosystems to build scalable and capable generative artificial intelligence tools.

#2 about 2 min

Defining modern generative artificial intelligence and agent applications

How large language models are utilized to reason, plan, and integrate with diverse external tools.

#3 about 3 min

Understanding core parameters and mechanics of large language models

How inference processes, model scaling, and context limits directly influence the capabilities of AI foundations.

#4 about 2 min

Architectural patterns for developing robust generative AI applications

Differentiating use cases between conversational interfaces, retrieval architectures, and autonomous multi-agent networks.

#5 about 3 min

Navigating the components of the modern generative AI stack

Selecting the appropriate agent runtimes, vector databases, and evaluation tools for enterprise workflows.

#6 about 2 min

Standardizing interoperability with the model context and agent protocols

How emerging protocols allow cross-framework communication and extend the capabilities of isolated agents.

#7 about 3 min

Choosing the optimal ecosystem tools for Node.js workflows

Evaluating foundational models, vector databases, and SDK support to match specific programming backgrounds.

#8 about 4 min

Constructing scalable AI solutions using LangChain and LangGraph

Why modular syntax and multi-agent orchestration tools are effective options for JavaScript development.

#9 about 3 min

Writing foundational applications with LangChain expression language

How to configure model providers, invoke queries, and compose complex logic chains for basic operations.

#10 about 3 min

Implementing stateful chatbots and multi-agent hierarchical architectures

Handling memory persistence, augmented retrieval sequences, and collaborative agent delegation for sophisticated operational tasks.

#11 about 5 min

Testing practical implementations through an interactive code playground

Executing live examples of structured outputs, database querying, and hierarchical supervisory frameworks within Node.js.

#12 about 2 min

Debugging and evaluating agent executions using LangSmith observability

Tracking agent token usage, execution costs, and routing decisions to ensure reliable system behaviors.

Matching moments

2:35 min

Evaluating frameworks and abstraction levels for building AI agents

Ahmad Adel Ahmad Adel · Europe 2026 Virtual

3:36 min

Overview of generative AI and the presentation agenda

juarezjunior juarezjunior · World Congress 2024

44 sec

Building multi-agent systems using popular frameworks and libraries

Mary Grygleski Mary Grygleski · Europe 2026 Virtual

2:54 min

Utilizing Java frameworks to interface with AI models

Mary Grygleski Mary Grygleski · LIVE

2:55 min

Building AI interactions in Java with LangChain4j

Alex Soto Alex Soto · World Congress 2025

1:22 min

Leveraging the comprehensive generative artificial intelligence stack

Duan Lightfoot Duan Lightfoot · World Congress 2024

More from World Congress 2025

GenAI Security: Navigating the Unseen Iceberg thumbnail
24:33
11 months ago

GenAI Security: Navigating the Unseen Iceberg

Maish Saidel-Keesing

Behind the Code: How Women Are Powering the Future of AI thumbnail
30:28
about 1 year ago

Behind the Code: How Women Are Powering the Future of AI

Alexandra Wudel, Laura Moritz, Madalina Florean

The AI Hype Filter: What’s Real, What’s Investable, What’s Noise? thumbnail
28:12
about 1 year ago

The AI Hype Filter: What’s Real, What’s Investable, What’s Noise?

Justus Lumpe, Konstantin Vinogradov, Nils Eiteneyer, Stephan Wirris

AI in Leadership: How Technology is Reshaping Executive Roles thumbnail
28:19
about 1 year ago

AI in Leadership: How Technology is Reshaping Executive Roles

Bernd Datler, Jasmin Kaiser, Jeff Hausmann, Sonja Alvarez

The AI-Ready Stack: Rethinking the Engineering Org of the Future thumbnail
28:09
about 1 year ago

The AI-Ready Stack: Rethinking the Engineering Org of the Future

Alex Laubscher, Jan Oberhauser, Keno Dreßel, Mirko Novakovic

AI Sovereignty: What Does It Take? thumbnail
29:13
about 1 year ago

AI Sovereignty: What Does It Take?

Boris Hecker, Clemens Wasner, Robin Hermann, Sonja Alvarez

Related videos

AI Agents Graph: Your following tool in your Java AI journey thumbnail
30:38
World Congress 2025 • about 1 year ago

AI Agents Graph: Your following tool in your Java AI journey

Alex Soto

Beyond Chatbots: How to build Agentic AI systems thumbnail
24:22
World Congress 2025 • about 1 year ago

Beyond Chatbots: How to build Agentic AI systems

Philipp Schmid

On a Secret Mission: Developing AI Agents thumbnail
29:03
World Congress 2025 • about 1 year ago

On a Secret Mission: Developing AI Agents

Jörg Neumann

Java Meets AI: Empowering Spring Developers to Build Intelligent Apps thumbnail
31:53
World Congress 2025 • about 1 year ago

Java Meets AI: Empowering Spring Developers to Build Intelligent Apps

Timo Salm

AI Agents & Agentic AI thumbnail
26:53
Europe 2026 Virtual • 3 months ago

AI Agents & Agentic AI

Xavier Sala Presas

How to Avoid LLM Pitfalls - Mete Atamel and Guillaume Laforge thumbnail
42:26
Coffee With Developers • over 1 year ago

How to Avoid LLM Pitfalls - Mete Atamel and Guillaume Laforge

Meta Atamel, Guillaume Laforge

Related articles

From learning to earning

Jobs that call for the skills explored in this talk.