Build OpenAI Applications with JavaScript

Lead the GenAI revolution by learning to build intelligent, scalable applications with OpenAI APIs, Redis, and Node.js. Future-proof your skills with hands-on projects and practical experience.

Intermediate

41 Lessons

Certificate of Completion

Lead the GenAI revolution by learning to build intelligent, scalable applications with OpenAI APIs, Redis, and Node.js. Future-proof your skills with hands-on projects and practical experience.

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

1 Assessment

66 Playgrounds

8 Quizzes

This course includes

1 Assessment

66 Playgrounds

8 Quizzes

Course Overview

In this course, you’ll get an introduction to Node.js and Express.js. You’ll learn about large language models—including how a general LLM works, OpenAI’s GPT model, and its APIs with Node.js. You’ll also learn about Redis to implement API rate limiting. You’ll then gain hands-on, practical experience via three applied projects. The first involves building a Q&A bot using the PDF document to understand embeddings. The second includes building a YouTube video summarizer app to understand speech-to-text proce...Show More

TAKEAWAY SKILLS

Large Language Models (llms)

Javascript

Node.js

Redis

What You'll Learn

An understanding of API development using Express.js

The ability to generate vector embeddings using LangChain and OpenAI APIs

Hands-on experience of speech-to-text using OpenAI's Whisper model

An understanding of image generation using OpenAI's Dall•E model

The ability to implement API rate limiting using Redis

What You'll Learn

An understanding of API development using Express.js

Course Content

Overview of the Course

Get familiar with building AI-driven web applications using OpenAI APIs and JavaScript essentials.

Course Overview

Quick Bites to Node.js and Express.js

Unpack the essentials of Node.js, Express.js, HTTP handling, async operations, and building APIs.

What Is Node.js?

Promises and Async-Await in Node.js

HTTP Module in Node.js

Create Modules in Node.js

What Is Express.js?

Handle GET and POST Requests with Express.js

Path and Query Parameters in Express.js

Middleware Functions with Express.js

Quiz Yourself on Node.js and Express.js

Challenge: Build an API to Fetch Posts

Solution: Build an API to Fetch Posts

Introduction to OpenAI and LLMs

Explore OpenAI and its LLM capabilities for NLP, text classification, sentiment analysis, and summarization.

Introduction to Natural Language Processing (NLP)

OpenAI and Large Language Models (LLMs)

Text Classification and Sentiment Analysis Using OpenAI Models

Quiz Yourself on OpenAI and LLMs

Challenge: Text Summarizer Using OpenAI

Solution: Text Summarizer Using OpenAI

Document Q&A Bot Using OpenAI

Grasp the fundamentals of building a Document Q&A bot integrating OpenAI, LangChain, and web development.

Introduction to Document Q&A Bot Project

Generate Vector Embeddings Using LangChain

Implement API for Q&A Using RetrievalQAChain

Build the Web Layout to Finish the App

Quiz Yourself on Document Q&A Bot

YouTube Video Captions Project

Map out the steps for generating, summarizing, and rewriting YouTube video captions.

Introduction to the YouTube Video Captions Project

Implement API to Generate Captions for YouTube Video

Implement API to Summarize YouTube Video

Implement API to Rewrite Script for YouTube Video

Build the Web Layout to Finish the App

Quiz Yourself on YouTube Video Captions Project

Quick Bites to Redis with Node.js

4 Lessons

Simplify integrating Redis with Node.js, managing data, and creating an efficient API.

Twitter Tweet Generator

7 Lessons

Build on creating a tweet generator app, integrating OpenAI models, API management, and rate limiting.

Wrap Up

1 Lesson

Step through building OpenAI applications with Node.js, Express.js, and AI-driven projects.

Course Assessment

Assessment

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Hands-on Learning Powered by AI

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AI-Powered Mock Interviews

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Adaptive Learning

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Explain with AI

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AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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