Your Domain Doesn't Know About PostgreSQL (And It Shouldn't)

📰 Dev.to · Pablo Ifrán

Separate your domain logic from infrastructure details like PostgreSQL to improve maintainability and scalability

intermediate Published 25 Mar 2026
Action Steps
  1. Identify the domain logic in your codebase
  2. Separate the domain logic from infrastructure details like database interactions
  3. Use interfaces or abstractions to decouple the domain logic from the database
  4. Implement a repository pattern to encapsulate data access and manipulation
  5. Test your domain logic independently of the infrastructure details
Who Needs to Know This

Backend developers and software engineers can benefit from this approach to keep their domain logic clean and focused on the business rules, while infrastructure details are handled separately

Key Insight

💡 Separating domain logic from infrastructure details improves maintainability and scalability

Share This
💡 Keep your domain logic clean and focused on business rules, not infrastructure details! #softwareengineering #backenddevelopment

Key Takeaways

Separate your domain logic from infrastructure details like PostgreSQL to improve maintainability and scalability

Full Article

Most backend code conflates what your software does with how it does it. That confusion has a cost — and it compounds over time.
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