⚙️ Backend Knowledge Base
A structured guide covering backend engineering with Spring, from framework fundamentals to production-ready architecture concerns.
Topics Covered
| # | Topic | Description |
|---|---|---|
| 1 | Spring Boot | Bootstrapping, auto-configuration, starter ecosystem |
| 2 | Spring Boot Internals | Lifecycle, configuration model, internals behavior |
| 3 | Spring Boot Advanced | Advanced production patterns and design trade-offs |
| 4 | Spring Boot Interview Questions | Targeted Q&A for practical backend interviews |
| 5 | Spring Framework | IoC, dependency injection, bean lifecycle |
| 6 | Spring Framework Deep Dive | Proxies, AOP, transaction boundaries, internals |
| 7 | Spring Interview Questions | Core concepts and real-world troubleshooting angles |
| 8 | Spring Security | Authentication, authorization, filters, method security |
| 9 | Spring Data JPA | Repository model, ORM behavior, query strategies |
| 10 | Spring MVC | Request flow, controllers, validation, exception handling |
Java / Architecture Tip
Pair this section with Java and Database knowledge base pages to build end-to-end backend decision-making skills.
Advanced Editorial Pass: Backend Design Under Scale and Change
Senior Engineering Focus
- Design services around explicit boundaries: API, domain, persistence, and integration.
- Prioritize operability from day one: logging, metrics, tracing, and failure handling.
- Keep framework usage intentional to avoid hidden coupling and upgrade friction.
Failure Modes to Anticipate
- Overloading controllers/services with cross-cutting concerns.
- Data access layers that leak persistence details into domain logic.
- Security configuration that is correct in dev but brittle in production.
Practical Heuristics
- Keep module boundaries clear and enforce them through package structure.
- Define transactional rules close to domain operations, not at random call sites.
- Review startup/configuration behavior before introducing custom framework hooks.