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Laurie Voss

Get started building full-stack RAG web applications. This course introduces the basics of Retrieval Augment Generation (RAG), including its practical implementation with JavaScript. You’ll assemble an intelligent agent capable of running its own queries. This course will guide you through the process of building a full-stack JavaScript web application, from the API server to a React component that queries your data. You’ll also learn to develop persistent chat that streams your answers to an interactive front-end in real time.

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Get started building full-stack RAG web applications. This course introduces the basics of Retrieval Augment Generation (RAG), including its practical implementation with JavaScript. You’ll assemble an intelligent agent capable of running its own queries. This course will guide you through the process of building a full-stack JavaScript web application, from the API server to a React component that queries your data. You’ll also learn to develop persistent chat that streams your answers to an interactive front-end in real time.

Learn from Laurie Voss, VP of developer relations at LlamaIndex, web developer and the co-founder of npm, the central registry of JavaScript packages.

In this course:

1. Learn to build a RAG application in JavaScript for querying your own data.

2. Develop tools to interact with multiple data sources using a router query engine that intelligently selects the right tool for your queries.

3. Build a full-stack web application step by step, starting with a backend web app and progressing to an interactive React frontend that calls your API to display query results.

4. Learn about production-ready techniques, including persisting your data, chatting with your data, and streaming responses for multiple queries.

5. Create a user-friendly web app that can chat with data using the create-llama command line tool from LlamaIndex.

Start building RAG web applications in JavaScript that allow you to interact with your data using LlamaIndex.

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What's inside

Syllabus

JavaScript RAG Web Apps with LlamaIndex
Get started building full-stack RAG web applications. This course introduces the basics of Retrieval Augment Generation (RAG), including its practical implementation with JavaScript. You’ll assemble an intelligent agent capable of running its own queries. This course will guide you through the process of building a full-stack JavaScript web application, from the API server to a React component that queries your data. You’ll also learn to develop persistent chat that streams your answers to an interactive front-end in real time. Learn from Laurie Voss, VP of developer relations at LlamaIndex, web developer and the co-founder of npm, the central registry of JavaScript packages. In this course: 1. Learn to build a RAG application in JavaScript for querying your own data. 2. Develop tools to interact with multiple data sources using a router query engine that intelligently selects the right tool for your queries. 3. Build a full-stack web application step by step, starting with a backend web app and progressing to an interactive React frontend that calls your API to display query results. 4. Learn about production-ready techniques, including persisting your data, chatting with your data, and streaming responses for multiple queries. 5. Create a user-friendly web app that can chat with data using the create-llama command line tool from LlamaIndex. Start building RAG web applications in JavaScript that allow you to interact with your data using LlamaIndex.

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Taught by Lama Voss who played a role in the central JavaScript packages registry
Explores Retrieval Augment Generation, which is used across industries
Taught through multiple learning media, including readings and discussion
Involves students interacting with multiple data sources, including LlamaIndex
Develops JavaScript skills which are valuable across many tech disciplines
Examines techniques used to develop real-world projects, including deploying a full-stack web app

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in JavaScript RAG Web Apps with LlamaIndex with these activities:
Review JavaScript and Node.js
Refresh your understanding of JavaScript and Node.js fundamentals to prepare for this course and enhance your grasp of the concepts.
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  • Revisit JavaScript syntax and data types
  • Explore Node.js core modules and file I/O
  • Practice writing simple JavaScript and Node.js programs
Review basic JavaScript syntax
This course will use JavaScript to build web applications. A review of JavaScript syntax would help build a strong foundation.
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  • Review variables, data types, and operators.
  • Review control flow statements like if-else, switch-case, and loops.
  • Review functions and their usage.
Explore 'JavaScript: The Good Parts'
Read Douglas Crockford's 'JavaScript: The Good Parts' to dive into JavaScript's core principles and best practices, deepening your understanding of the language.
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  • Review the book's insights on JavaScript's design and pitfalls
  • Learn about functional programming and object-oriented principles in JavaScript
  • Apply the book's lessons to your JavaScript code
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Review basic JavaScript
Solidifying your understanding of basic JavaScript syntax, variable types, and control structures will prepare you to build effective RAG applications.
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  • Revisit a tutorial on basic JavaScript concepts.
  • Practice writing simple JavaScript programs to manipulate data and control flow.
Review JavaScript Fundamentals
Reinforce your understanding of JavaScript's core concepts and syntax before delving into RAG applications.
Show steps
  • Review variables, data types, and operators.
  • Practice writing simple functions and control flow statements.
  • Explore object-oriented programming concepts like classes and inheritance.
Review 'Eloquent JavaScript'
This book provides a comprehensive overview of JavaScript and can help reinforce concepts learned in the course.
Show steps
  • Read the book and take notes on key concepts.
  • Complete the exercises and challenges in the book.
Join a RAG Study Group
Connect with fellow learners to discuss RAG concepts, share tips, and work on projects together.
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  • Find or create a study group.
  • Set regular meeting times.
  • Share resources, ask questions, and collaborate on exercises.
Explore the LlamaIndex documentation
Familiarize yourself with the LlamaIndex API and its capabilities to effectively build RAG applications.
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  • Read the LlamaIndex documentation to understand its features, endpoints, and usage.
  • Follow tutorials on building RAG applications with LlamaIndex.
Follow Node.js and Express.js tutorials
Enhance your practical skills by following guided tutorials on Node.js and Express.js, building a solid foundation for full-stack web development.
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  • Set up a Node.js environment and create your first server
  • Develop RESTful APIs using Express.js for handling HTTP requests
  • Implement data persistence using MongoDB or a similar database
  • Deploy your web application to a cloud platform
Complete JavaScript tutorials on event handling
Handling user interactions is a key aspect of building web applications. Completing tutorials on event handling will provide hands-on experience.
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  • Find tutorials on JavaScript event handling.
  • Follow the tutorials to learn about different event types and how to handle them.
  • Practice implementing event handlers in your own code.
JavaScript coding practice
Practice writing JavaScript code to improve proficiency in using JavaScript for building web applications.
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  • Solve JavaScript coding challenges
  • Contribute to JavaScript coding projects
Build a Basic RAG Chatbot with LlamaIndex
Gain hands-on experience building a simple RAG chatbot that interacts with your data using LlamaIndex's API.
Show steps
  • Set up a LlamaIndex account and API key.
  • Create a simple JavaScript application to handle user input and display query results.
  • Integrate the LlamaIndex API to perform RAG queries and retrieve data.
RAG Query Optimization Exercises
Enhance your RAG skills by practicing query optimization techniques to improve performance.
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  • Analyze sample RAG queries and identify potential bottlenecks.
  • Apply techniques such as indexing and query caching.
  • Measure and compare the performance of different query optimizations.
Join a JavaScript study group or online community
Engaging with other learners provides opportunities to share knowledge, ask questions, and collaborate on projects.
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  • Find and join a JavaScript study group or online community.
  • Participate in discussions and ask questions.
  • Collaborate with others on projects or challenges.
Build a simple RAG application
Hands-on practice building a RAG application will reinforce your understanding of the concepts and techniques covered in this course.
Show steps
  • Design a simple RAG application that performs a specific task.
  • Implement the application using JavaScript and the LlamaIndex API.
  • Test and evaluate the functionality of your application.
Attend a JavaScript workshop or conference
Attending workshops or conferences provides opportunities to learn from experts, network with other developers, and stay updated on the latest trends in JavaScript.
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Show steps
  • Research and identify relevant JavaScript workshops or conferences.
  • Register and attend the event.
  • Actively participate in sessions and connect with other attendees.
Solve JavaScript coding challenges
Solving coding challenges helps improve problem-solving skills, strengthens understanding of JavaScript syntax, and prepares for technical interviews.
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  • Find online platforms or resources that provide JavaScript coding challenges.
  • Select challenges that align with the course concepts and difficulty level.
  • Attempt to solve the challenges independently.
  • Review solutions and learn from mistakes.
Contribute to the LlamaIndex Community
Enhance your understanding of RAG by contributing to the LlamaIndex open-source project.
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  • Familiarize yourself with the LlamaIndex codebase.
  • Identify potential areas for improvement or feature requests.
  • Submit pull requests with your contributions.
Build a simple JavaScript web application
Building a simple web application will provide practical experience in applying JavaScript and understanding how different components work together.
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  • Plan the functionality and design of the web application.
  • Write the HTML and CSS code for the application.
  • Write the JavaScript code to implement the application's functionality.
  • Test and debug the application.
Develop a full-stack web application
Creating a full-stack web application will provide you with a comprehensive understanding of building and deploying RAG applications.
Show steps
  • Design and architect the application's back-end and front-end components.
  • Implement the back-end API using JavaScript and the LlamaIndex API.
  • Create a React front-end that interacts with the back-end API.
  • Deploy the application to a hosting platform.
Develop a RAG-Powered Web Application
Apply your knowledge to create a complete web application that utilizes RAG to search and display data from multiple sources.
Show steps
  • Design the application's architecture and user interface.
  • Implement the backend API using Node.js and the LlamaIndex API.
  • Create a React frontend to interact with the API and present query results.
Build a Personal Knowledge Graph
Apply RAG to create a personalized knowledge graph that consolidates and organizes your data from different sources.
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Show steps
  • Identify and collect data sources relevant to your interests.
  • Establish a data integration strategy using RAG.
  • Create a knowledge graph that represents the relationships and connections within your data.
Start a personal project involving JavaScript
Working on a personal project allows for deeper exploration of JavaScript and encourages creativity and problem-solving.
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Show steps
  • Identify an idea for a personal project.
  • Plan the project and outline the steps involved.
  • Start implementing the project in JavaScript.
  • Test and debug the project regularly.
  • Share the project with others for feedback and improvement.
Contribute to the LlamaIndex open-source project
Contributing to the LlamaIndex open-source project will provide you with practical experience and deepen your understanding of RAG technologies.
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  • Explore the LlamaIndex GitHub repository.
  • Identify an issue or feature to work on.
  • Fork the repository and create a pull request to contribute your changes.
Mentor or assist other students in the course
Enhance your understanding and solidify your knowledge by mentoring or assisting other students in the course, fostering a collaborative learning environment.
Show steps
  • Offer support and guidance to other students
  • Review course materials and concepts to reinforce your own learning
  • Collaborate on projects or assignments to gain different perspectives
Participate in hackathons or coding challenges
Put your JavaScript and RAG knowledge to the test by participating in hackathons or coding challenges, sharpening your skills in a competitive environment.
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Show steps
  • Identify relevant hackathons or coding challenges
  • Form a team or work independently
  • Develop and implement creative solutions to the challenge
  • Submit your project for evaluation

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Learners who complete JavaScript RAG Web Apps with LlamaIndex will develop knowledge and skills that may be useful to these careers:

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