Tavily Comparative Review Utility

This project provides a simple Node.js utility to fetch a comparative review of three entities using the Tavily API.

Features

Compare three entities: Generate a concise comparative review for any three items.
Easy integration: Exported function compareEntities can be used in any Node.js project.
Environment‑based configuration: API key is loaded from a .env file.
Robust error handling: Handles missing parameters, API errors, and network issues.

Prerequisites

Node.js v18 or newer
A Tavily API key. Sign up at https://tavily.com to obtain one.

Setup

Clone the repository

git clone https://git.brojs.ru/kuzakhmetovartur/povtornyy-ekzamen-2-sravnitelnyy-obzor-3.git
cd povtornyy-ekzamen-2-sravnitelnyy-obzor-3

Install dependencies
```
npm install
```

Configure environment variables

Copy the example file and set your API key:

cp .env.example .env
# Edit .env and replace YOUR_TAVILY_API_KEY_HERE with your actual key

Usage

const { compareEntities } = require('./src/index');

(async () => {
  try {
    const result = await compareEntities('Apple', 'Samsung', 'Google');
    console.log(JSON.stringify(result, null, 2));
  } catch (err) {
    console.error('Error:', err.message);
  }
})();

Run the script:

node src/index.js

Testing

The project uses Jest for unit tests.

npm test

Project Structure

├── src
│   └── index.js          # Main utility
├── tests
│   └── compare.test.js   # Unit tests
├── .env.example          # Environment variable template
├── .gitignore
├── package.json
└── README.md

License

Feel free to open issues or pull requests if you encounter any problems or have suggestions for improvement.

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