Microservice Scientific Calculator

A distributed scientific calculator where each operation is implemented as a microservice in a different programming language.

Architecture

This project implements a scientific calculator with each operation handled by an independent microservice written in a different programming language:

• Addition: Rust
• Subtraction: Go
• Multiplication: Python
• Division: Ruby
• Power: Java
• Square Root: F#
• Logarithm: PHP
• Trigonometry: Kotlin
• Memory Operations: C#
• Combinatorics/Factorial: Elixir
• Unit Conversion: TypeScript
• Matrix Operations: Julia
• Bitwise Operations: Swift
• Complex Numbers: Clojure
• API Gateway: Node.js
• Frontend: React

Services

Addition Service (Rust)

• Port: 8001
• Operations: a + b

Subtraction Service (Go)

• Port: 8002
• Operations: a - b

Multiplication Service (Python)

• Port: 8003
• Operations: a * b

Division Service (Ruby)

• Port: 8004
• Operations: a / b

Power Service (Java)

• Port: 8005
• Operations: a^b, a^2, a^3

Square Root Service (F#)

• Port: 8006
• Operations: √a

Logarithm Service (PHP)

• Port: 8007
• Operations: log(a), ln(a), log10(a)

Trigonometry Service (Kotlin)

• Port: 8008
• Operations: sin(a), cos(a), tan(a), etc.

Memory Service (C#)

• Port: 8009
• Operations: M+, M-, MR, MC

Factorial Service (Elixir)

• Port: 8010
• Operations: factorial(n), permutation(n,r), combination(n,r)

Conversion Service (TypeScript)

• Port: 8012
• Operations: temperature(value, from, to), length(value, from, to), weight(value, from, to)

Matrix Service (Julia)

• Port: 8014
• Operations: matrix-add, matrix-multiply, matrix-determinant, matrix-inverse

Bitwise Service (Swift)

• Port: 8016
• Operations: and, or, xor, not, left-shift, right-shift

Complex Numbers Service (Clojure)

• Port: 8017
• Operations: complex-add, complex-subtract, complex-multiply, complex-divide, complex-magnitude, complex-conjugate

API Gateway

• Port: 8000
• Routes requests to appropriate service
• Combines responses

Frontend

• Port: 3001
• User interface for calculator
• Sends requests to API Gateway

Setup and Running

Prerequisites

• Docker and Docker Compose

Build and Run

# Build and start all services
docker-compose up --build

# Access the calculator web interface
open http://localhost:3001

API Endpoints

Each service exposes a REST API with JSON input/output. For example:

• Addition: POST /add with body {"a": 5, "b": 3} returns {"result": 8}
• Subtraction: POST /subtract with body {"a": 5, "b": 3} returns {"result": 2}
• And so on...

The API Gateway exposes a unified API at http://localhost:8000/calculate that routes operations to the appropriate service.

Development

To add a new operation:

1. Create a new service directory
2. Implement the operation in a language of your choice
3. Add the service to the docker-compose.yml file
4. Update the API Gateway to route to the new service