• Overview
• Installation & Setup
• API Usage
• Testing
• Tech Stack
• Structure

This is a simple JSON API that checks if a given number is prime.

• Accepts an integer query parameter.
• Returns true or false based on primality.
• Handles invalid input gracefully.
• Fully tested with Jest + Supertest.
• Includes Swagger-based API documentation.

1. Clone this repository:

   git clone https://github.com/Timothy-Rhodes/prime-number-api.git
   cd prime-number-api
   

2. Install dependencies:

   npm install

3. Start the server:

   node server.js

4. The server will run on http://localhost:3000 by default.

To check if a number is prime, make a GET request to the /is_prime endpoint with the number as a query parameter:

curl "http://localhost:3000/is_prime?number=19"

returns this JSON response:

{
  "number": "19",
  "is_prime": true
}

To view the API documentation, navigate to http://localhost:3000/docs in your browser.

To run the tests:

npm test

• Node.js
• Express
• Jest
• Supertest
• Swagger