Let’s go through the SOLID principles and functional programming principles that can apply to your Go codebase. I’ll provide simple Go examples along with brief explanations to show how each principle can improve code quality. --- SOLID Principles Single Responsibility Principle (SRP) Description: A class or function should have only one reason to change, meaning it should only have one job or responsibility. Example: // Good: Separate responsibilities into two functionstypeEmailSenderstr...