openai_api_key

twitter_api_key

twitter_api_secret_key

twitter_access_token

twitter_access_token_secret

This course covers building GenAI apps with JavaScript, API development, vector embeddings, speech-to-text, image generation, and rate limiting with OpenAI.

Harsh Jain - Build Open AI Applications Using JavaScript (1).png

docker.tar.gz

Node With Express

Node Without Express

Node Without Express with Redis

Node With Express and Redis

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 processing using OpenAI’s Whipser model. The final project is tol build a Twitter tweet generator to learn image generation with Redis’s role in managing API rate limits.

After taking this course, you can develop intelligent and scalable applications using OpenAI APIs, Redis, and Node.js.

Build OpenAI Applications with JavaScript

Which model is used to generate images using OpenAI?

Which model is used to generate images using OpenAI?

Generates three images of size 1024 x 1024.

Removes all event listeners attached to the button. 

What does the below code do?
```js
    const response = await openai.images.generate({
        model: "dall-e-3",
        prompt: `You are an expert graphic designer who design amazing illustrations for twitter tweets. You need to generate an image related to the topic: machine learning and the tweet: ${tweet}. Your image should be of high quality and not controversial.`,
        n: 3,
        size: "1024x1024"
    });
```


What does the below code do?
<pre><code class="language-js"> const response = await openai.images.generate({
 model: &quot;dall-e-3&quot;,
 prompt: `You are an expert graphic designer who design amazing illustrations for twitter tweets. You need to generate an image related to the topic: machine learning and the tweet: ${tweet}. Your image should be of high quality and not controversial.`,
 n: 3,
 size: &quot;1024x1024&quot;
 });
</code></pre>

Consider an application that allows users to log in. To prevent brute-force attacks, we want to implement rate limiting on login attempts. What aspect of a user's login attempt can be used as a unique identifier for rate limiting?

Consider an application that allows users to log in. To prevent brute-force attacks, we want to implement rate limiting on login attempts. What aspect of a user’s login attempt can be used as a unique identifier for rate limiting?

IP address and number of transactions within a timeframe.

Consider an e-commerce platform wants to prevent fraudulent purchases using stolen credit cards. Which combination might be useful for rate limiting in this scenario?

Consider an e-commerce platform wants to prevent fraudulent purchases using stolen credit cards. Which combination might be useful for rate limiting in this scenario?

What does the below code do?
```js
const mediaIds = await twitterClient.v1.uploadMedia(`${__dirname}/tweet_image.png`);

const body = {
    text: `This is a simple tweet`,
    media: { media_ids: mediaIds }
};

await twitterClient.v2.tweet(body);
```

What does the below code do?
<pre><code class="language-js">const mediaIds = await twitterClient.v1.uploadMedia(`${__dirname}/tweet_image.png`);

const body = {
 text: `This is a simple tweet`,
 media: { media_ids: mediaIds }
};

await twitterClient.v2.tweet(body);
</code></pre>

Test yourself on what you learned in this chapter.

Overview of the Course

Quick Bites to Node.js and Express.js

Introduction to OpenAI and LLMs

Document Q&A Bot Using OpenAI

YouTube Video Captions Project

Quick Bites to Redis with Node.js

Twitter Tweet Generator

Wrap Up

Course Assessment

Quiz Yourself on Twitter Thread Generator