
Alvin Badillo developed the core Sell lifecycle capabilities for the Mercado Colegial Online project, focusing on backend infrastructure within the uprm-inso4101-2024-2025-s1/semester-project-mercado-colegial-online repository. He implemented a complete Sell CRUD API using Node.js, Express.js, and MongoDB, refactoring the Sell model and controller to ES Module syntax for improved maintainability. Alvin integrated the Sell model with the backend database and server startup, establishing a scalable foundation for future enhancements. He also created unit tests for CREATE and DELETE operations, ensuring reliable entity management and data integrity. The work delivered a modern, testable backend workflow.

November 2024 delivered core Sell lifecycle capabilities for the Mercado Colegial Online project. Key outcomes include a complete Sell CRUD API, a refactor of the Sell model and controller to ES Module syntax for maintainability, and unit tests validating CREATE and DELETE operations to ensure reliable entity management. The work was integrated with the backend DB connection and wired into the server startup, establishing a scalable foundation for accurate sell data operations and future enhancements. These efforts collectively improve data integrity, reduce operational risk, and accelerate future feature delivery by enabling a modern, test-covered backend workflow.
November 2024 delivered core Sell lifecycle capabilities for the Mercado Colegial Online project. Key outcomes include a complete Sell CRUD API, a refactor of the Sell model and controller to ES Module syntax for maintainability, and unit tests validating CREATE and DELETE operations to ensure reliable entity management. The work was integrated with the backend DB connection and wired into the server startup, establishing a scalable foundation for accurate sell data operations and future enhancements. These efforts collectively improve data integrity, reduce operational risk, and accelerate future feature delivery by enabling a modern, test-covered backend workflow.
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