From Local Scripts to Global-Ready Backend: CI/CD, Testing & Coverage in SparkTrace

posted 2 min read

Over the past few weeks, I’ve transformed my backend project SparkTrace into a reproducible, test-driven, and CI/CD-integrated system—ready for international technical interviews and scalable deployments.

Here’s a breakdown of the key milestones:

Modular Architecture & Refactor

Reorganized Django commands into a clean structure under productos/management/commands/

Decoupled logic for API integration, CSV loading, and Spark job execution

Refactored settings and .gitignore for cross-platform compatibility

Automated Testing & Full Coverage

Built a complete test suite with pytest and pytest-django

Validated edge cases with JSON fixtures simulating real API responses

Achieved 100% coverage in critical modules: CSV loader, API integration, custom exceptions

Documented audit-ready testing strategy in bilingual README

CI/CD Integration with GitHub Actions

Configured workflow to run tests and coverage on every push and pull request

Managed secrets (SECRET_KEY, CODECOV_TOKEN) securely via GitHub

Integrated Codecov for visual coverage reporting

Added badges for test status and coverage to README

Professional Presentation & Portfolio

Updated bilingual README with technical branding

Published progress on LinkedIn to showcase reproducibility and traceability

Live portfolio available at nicolasandrescl.pythonanywhere.com

What’s Next?

My goal is to lead backend projects with robust testing, API integration, and CI/CD pipelines that scale globally. SparkTrace is now a technical showcase for reproducibility, coverage, and auditability—ready for interviews, collaborations, and open-source contributions.

Versión en español

De scripts locales a backend listo para el mundo: CI/CD, testing y cobertura en SparkTrace

Durante las últimas semanas, transformé mi proyecto backend SparkTrace en un sistema reproducible, orientado a testing y con integración CI/CD—preparado para entrevistas técnicas internacionales y despliegues escalables.

Aquí el resumen de los hitos clave:

Arquitectura modular y refactor

Reorganicé los comandos Django en una estructura limpia bajo productos/management/commands/

Desacoplé la lógica de integración API, carga CSV y ejecución de jobs Spark

Refactoricé los settings y .gitignore para compatibilidad multiplataforma

Testing automatizado y cobertura total

Construí una suite completa con pytest y pytest-django

Validé casos límite con fixtures JSON que simulan respuestas reales de API

Alcancé cobertura del 100% en módulos críticos: cargador CSV, integración API, excepciones personalizadas

Documenté la estrategia de testing lista para auditoría en README bilingüe

Integración CI/CD con GitHub Actions

Configuré workflow para ejecutar tests y cobertura en cada push y pull request

Gestioné secretos (SECRET_KEY, CODECOV_TOKEN) de forma segura vía GitHub

Integré Codecov para reporte visual de cobertura

Añadí badges de estado de tests y cobertura al README

Presentación profesional y portafolio

Actualicé README bilingüe con branding técnico

Publiqué avances en LinkedIn destacando reproducibilidad y trazabilidad

Portafolio en vivo disponible en nicolasandrescl.pythonanywhere.com

¿Qué sigue?

Mi objetivo es liderar proyectos backend con testing robusto, integración de APIs y pipelines CI/CD que escalen globalmente. SparkTrace es ahora una vitrina técnica de reproducibilidad, cobertura y auditoría—lista para entrevistas, colaboraciones y contribuciones open-source.

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Fantastic work Nicolás, turning SparkTrace into a fully tested and CI/CD-integrated backend is impressive. I’m curious, how did you approach designing your test fixtures to simulate real API responses effectively?

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