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Librería Python eco-back

Project description

eco-back

Librería Python para backend con soporte para PostgreSQL/PostGIS, clientes API, manejo de excepciones y logging

Características

  • Base de datos: Conexión y operaciones con PostgreSQL
  • PostGIS: Operaciones geoespaciales (puntos, polígonos, búsquedas por proximidad)
  • Cliente API: Cliente HTTP genérico y cliente específico UNP
  • Patrón Repository: Implementación de patrones de diseño para acceso a datos
  • Utils: Sistema de excepciones y logging para Django
  • Registro: Funciones de trazabilidad para Django REST Framework

Descripción

eco-back es una librería modular que facilita el desarrollo de aplicaciones backend, proporcionando abstracciones para bases de datos geoespaciales, consumo de APIs REST, manejo de excepciones y logging estructurado.

Instalación

Desde PyPI

pip install eco-back

Desde el código fuente

pip install -e .

Para desarrollo

pip install -e ".[dev]"

Uso

Cliente de Consecutivos (UNP)

from eco_back.api import Consecutivo

# Crear cliente
client = Consecutivo(base_url="https://api.unp.example.com")

# Obtener consecutivo
consecutivo = client.obtener(origen=1)
if consecutivo:
    print(f"Consecutivo: {consecutivo}")

client.close()

# Forma recomendada: usar context manager
with Consecutivo(base_url="https://api.unp.example.com") as client:
    consecutivo = client.obtener(origen=1)
    # Usar el consecutivo...

Cliente API Genérico

from eco_back.api import APIConfig, APIClient

config = APIConfig(
    base_url="https://api.example.com",
    timeout=30,
    headers={"Authorization": "Bearer token"}
)

with APIClient(config) as client:
    # GET request
    data = client.get("/endpoint")
    
    # POST request
    result = client.post("/endpoint", json={"key": "value"})

Conexión básica a PostgreSQL

from eco_back.database import DatabaseConfig, DatabaseConnection

config = DatabaseConfig(
    host="localhost",
    port=5432,
    database="mi_base_datos",
    user="usuario",
    password="password"
)

with DatabaseConnection(config) as db:
    resultados = db.execute_query("SELECT * FROM tabla")
    for row in resultados:
        print(row)

Uso de PostGIS

from eco_back.database import DatabaseConfig, DatabaseConnection, PostGISHelper

config = DatabaseConfig(
    host="localhost",
    port=5432,
    database="mi_db_geo",
    user="postgres",
    password="password"
)

with DatabaseConnection(config) as db:
    postgis = PostGISHelper(db)
    
    # Habilitar PostGIS
    postgis.enable_postgis()
    
    # Insertar un punto geográfico
    punto_id = postgis.insert_point(
        table_name="ubicaciones",
        lat=40.4168,
        lon=-3.7038,
        data={"nombre": "Madrid", "tipo": "ciudad"}
    )
    
    # Buscar puntos cercanos (5km)
    cercanos = postgis.find_within_distance(
        table_name="ubicaciones",
        lat=40.4168,
        lon=-3.7038,
        distance_meters=5000
    )

Desarrollo

Ejecutar tests

pytest

Formatear código

black src/ tests/

Linting

flake8 src/ tests/

Type checking

mypy src/

Manejo de excepciones y logging (Django)

from eco_back.utils import (
    ServiceValidationError,
    handle_service_validation_error,
    _log_warn
)
from rest_framework.decorators import api_view
from rest_framework.response import Response

@api_view(['GET'])
@handle_service_validation_error
def mi_vista(request, user_id):
    try:
        _log_warn(f"Buscando usuario {user_id}", level="info")
        
        usuario = Usuario.objects.get(id=user_id)
        return Response({"usuario": usuario.username})
        
    except Usuario.DoesNotExist:
        _log_warn(f"Usuario {user_id} no encontrado", level="warning")
        raise ServiceValidationError(
            "Usuario no encontrado",
            code=404,
            context={"user_id": user_id}
        )

Trazabilidad de registros (Django)

from eco_back.registro import TrazabilidadRegistroPermiso
from django.urls import path

urlpatterns = [
    path('api/trazabilidad/<int:registro_id>/', TrazabilidadRegistroPermiso),
]

Módulos disponibles

  • eco_back.database - Conexiones y operaciones con PostgreSQL/PostGIS
  • eco_back.api - Clientes HTTP y consumo de APIs
  • eco_back.documento - Manejo de documentos y anexos
  • eco_back.utils - Excepciones y logging para Django
  • eco_back.registro - Funciones de trazabilidad (Django REST Framework)

Para más información, consulta los README de cada módulo:

Licencia

MIT

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