Core Identifiers 🚀

Centralized and robust service to manage unique identifiers (UUID) inside the Python ecosystem.

This component was designed to be agnostic, allowing multiple projects (APIs, microservices) to use the same logic to generate IDs, ensuring consistency.

✨ Functionalities

• UUID v4: Generates totally random IDs for sessions and transactions
• UUID v4 Hex: Compact version (without dashes), ideal for file names or URL keys
• UUID v5: Generates IDs based on Namespace and Input (e.g. email). The same input always generates the same ID — perfect to avoid duplicates in databases like MongoDB or MySQL

🛠️ How to use

1. Project structure

Copy the UUID folder to the root of your project:

your_project/
├── UUID/
│   ├── __init__.py
│   └── identifier.py

2. Usage examples

from UUID.identifier import Identifier

# Random UUID v4
print(Identifier.v4())    # "550e8400-e29b-41d4-a716-446655440000"

# UUID v4 Hex (no dashes)
print(Identifier.hex())   # "550e8400e29b41d4a716446655440000"

# Deterministic UUID v5 (same input = same ID)
print(Identifier.v5("user@email.com"))  # always the same

🧪 Running Tests

Install pytest:

pip install pytest

Run all tests:

pytest tests/

Expected output:

tests/test_identifiers.py .....   5 passed in 0.02s

Test coverage

Test	Description
test_uuid4_is_string	Checks that UUID v4 returns a string
test_uuid4_format_valido	Validates UUID v4 format
test_uuid4_hex	Checks that hex version has no dashes
test_uuid5_deterministic	Same input always returns same ID
test_uuid_v5_inputs_different	Different inputs return different IDs

📁 Project Structure

core-uuid/
├── UUID/
│   ├── __init__.py
│   └── identifier.py
├── tests/
│   ├── __init__.py
│   └── test_identifiers.py
├── README.md
└── LICENSE