OpenAI Chat Completion Example

A simple Node.js application demonstrating the OpenAI API with a basic chat completion example.

Prerequisites

• Node.js (version 14.x or higher recommended)
• An OpenAI API key

Setup

1. Clone or download this repository
2. Install dependencies:

   npm install
   

3. Configure your OpenAI API key:
   • Open the .env file
   • Replace your_openai_api_key_here with your actual OpenAI API key

   OPENAI_API_KEY=your_actual_api_key
   

Usage

Run the example script:

npm start

This will execute a simple prompt asking for a one-sentence bedtime story about a unicorn using GPT-4o.

About This Example

The script demonstrates:

• Loading environment variables with dotenv
• Initializing the OpenAI client
• Using system prompts to guide the AI's behavior
• Setting temperature for controlling randomness (lower = more deterministic)
• Error handling for API requests

Modifying the Example

You can modify the openai.js file to:

• Change the prompt
• Adjust the temperature parameter (0-1)
• Try different models
• Customize the system prompt
• Add more messages to the conversation