Calculator API

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🎯 About

This is a calculator API made with Node.js and Express.js. It allows you to calculate an expression with the following operators: +, -, *, / and return the result. It contains a POST [/api/calculate] method that receives the expression to be calculated.

✨ Features

✔️ Calculate an expression with the following operators: +, -, *, / and return the result.

🚀 Technologies

The following tools were used in this project:

• Node.js
• Express.js
• TypeScript

✅ Requirements

Before starting 🏁, you need to have Git and Node installed.

🏁 Starting

# Clone this project
$ git clone https://github.com/ignaciocamargo99/calculatorAPI.git

# Install dependencies
$ npm install

# Run the project
$ npm start

# The server will initialize in the <http://localhost:3000>

🌐 Endpoint

URL:
POST /api/calculate

Content-Type:
application/json

---

📥 Request Parameters

POST method expects a JSON in the body of the request with the following structure:

{
  "expression": "10 * (2 + 5) * 10"
}

---

Successfull Response (200):

{
  "result": 700
}

Error Response (400):

{
  "error": "Invalid or missing 'expression'"
}

📝 Notes

• The mathematical expression should be valid and contain only supported operators (+, -, *, /, ()).
• Ensure that the server is running before making requests.

📝 License

Made by Ignacio Camargo

 

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