Learn SLIM with Real Code Examples

Request-Response cycle handled via PSR-7 interfaces

Routing determines controller logic execution

Middleware modifies request/response objects

Dependency Injection via container for services

Error handling and logging integrated at middleware level

Routes handle request and delegate to controllers or callbacks

Middleware processes requests/responses before/after handlers

Services injected via DI container

Response objects carry HTTP output

Templating engines optional for view rendering

Micro-framework architecture

Middleware stack

PSR-7 request/response

Dependency injection

Routing-first design

Microservices API architecture

Single-page app backends

REST APIs for mobile or web clients

Lightweight admin dashboards

Middleware-driven logging and auth pipelines

Minimalism and simplicity

PSR compliance for interoperability

Middleware-driven architecture

Flexibility and extensibility

Focus on performance and low overhead

Use caching layers to reduce DB load

Distribute microservices for load balancing

Use queue systems for background processing

Optimize middleware stack order

Monitor performance metrics for APIs

Upgrade routes to PSR-7 request/response objects

Refactor middleware to PSR-15 interfaces

Update DI container integrations

Test all routes and API endpoints

Review dependencies for version compatibility