Project Delta

Overview

Project Delta is a Python backend service built with FastAPI. It focuses on API performance, data validation, and clean architecture.

Key Features

• FastAPI — High-performance async Python framework
• Pydantic — Runtime data validation and serialization
• SQLAlchemy — ORM with async support

API Design

The API follows RESTful conventions with automatic OpenAPI documentation:

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel

app = FastAPI()

class Item(BaseModel):
    name: str
    description: str | None = None
    price: float

@app.get("/items/{item_id}")
async def read_item(item_id: int):
    return {"item_id": item_id}

What I Learned

Python’s type hints combined with Pydantic’s validation make it possible to build robust APIs with minimal boilerplate. FastAPI’s async support was crucial for handling concurrent requests efficiently.