Calculator Server - REST API

This is a simple REST API built using Flask that performs basic arithmetic operations such as addition, subtraction, multiplication, and division.

Live URL:
API

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Features

• Basic arithmetic operations
• JSON-based API input and output
• Easy to test with Postman

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API Endpoints

GET /

Returns a basic welcome message in HTML.

Example usage:

POST /

Accepts a JSON payload to perform the requested operation.

Supported Operations

• add - addition
• sub - subtraction
• mul - multiplication
• div - division

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Sample Request

{
  "op": "add",
  "first": 10,
  "second": 5
}

Sample Response

{
  "result": 15
}