📊 Number Classification API

This is a Node.js API that accepts a number as a query parameter and returns interesting mathematical properties about it, along with a fun fact retrieved from the Numbers API.

This API was built for HNG12 Stage 1 Backend Task and deployed to a publicly accessible endpoint.

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🔧 Features

✅ Accepts a number as a query parameter.
✅ Returns JSON response with the following details:

• Prime check (is_prime)
• Perfect number check (is_perfect)
• Armstrong number check (properties)
• Digit sum (digit_sum)
• Mathematical fun fact from Numbers API
  ✅ Proper error handling for invalid inputs.
  ✅ CORS enabled for cross-origin requests.
  ✅ Fast response time (<500ms).

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📡 API Documentation

📌 Endpoint

GET /api/classify-number?number=

🔹 Example Request

GET https://your-api.onrender.com/api/classify-number?number=371
🔹 Example Response (200 OK)
{
    "number": 371,
    "is_prime": false,
    "is_perfect": false,
    "properties": ["armstrong", "odd"],
    "digit_sum": 11,
    "fun_fact": "371 is an Armstrong number because 3^3 + 7^3 + 1^3 = 371"
}
🔹 Error Response (400 Bad Request)
{
    "number": "alphabet",
    "error": true
}
🛠 Setup Instructions (Run Locally)
1️⃣ Clone the Repository
git clone https://github.com/blossomifeoma/HNGTask1.git
cd HNGTask1
2️⃣ Install Dependencies
npm install
3️⃣ Run the API Locally
node index.js
Then, open in your browser or Postman:
http://localhost:3000/api/classify-number?number=371(or any number of your choice)