Create a Shared openai lib

[robert-s-hogan]

With an NX monorepo already set up and apps deployed, creating reusable functions for OpenAI involves a few targeted steps. These functions can be encapsulated within a library for easy sharing across your applications. Here's how you can approach it:

Step 1: Create a Shared Library

If you haven't already, create a shared library within your NX workspace to house the OpenAI integration. This library will contain all the reusable functions related to OpenAI interactions.

nx generate @nrwl/js:library openai-integration --buildable

Choose --buildable to ensure the library can be easily built and shared across applications.

Step 2: Install OpenAI SDK (Optional)

If you're planning to use the OpenAI Node.js SDK for your integration, you'll need to install it within your library. Navigate to your library's directory and install the SDK:

cd libs/openai-integration
npm install openai

Step 3: Create Reusable Functions

Inside your library, create functions that abstract away the complexity of interacting with OpenAI's API. For example, you might create a function to generate text with GPT-3 or GPT-4, another to interact with DALL-E, etc.

// libs/openai-integration/src/lib/gpt.ts
import { Configuration, OpenAIApi } from "openai";

const configuration = new Configuration({
  apiKey: process.env.OPENAI_API_KEY,
});
const openai = new OpenAIApi(configuration);

export async function generateText(prompt: string): Promise<string> {
  const response = await openai.createCompletion({
    model: "text-davinci-003",
    prompt,
    max_tokens: 150,
  });
  return response.data.choices[0].text.trim();
}

Step 4: Export Your Functions

Make sure to properly export your functions from the library so they can be imported into your applications.

// libs/openai-integration/src/index.ts
export * from './lib/gpt';

Step 5: Use the Library in Your Applications

With your OpenAI integration library set up, you can now use it in any application within your NX workspace. Import the library and use the functions as needed.

// apps/your-app/src/app/app.component.ts
import { generateText } from '@your-workspace/openai-integration';

async function useGPT() {
  const text = await generateText("Tell me a story about a dragon.");
  console.log(text);
}

Step 6: Environment Configuration

Ensure you have your OpenAI API key securely stored and accessible via environment variables, both in your local development environment and in your deployment setup.

Step 7: Testing and Documentation

Write tests for your library functions to ensure they work as expected and document their usage to make it easy for other developers to integrate them into their applications.

Step 8: Continuous Integration

Use NX's capabilities to set up CI for your library, ensuring that changes are tested and that the library remains reliable.

By following these steps, you create a robust and reusable OpenAI integration within your NX monorepo, allowing you to easily leverage OpenAI's capabilities across all your applications.