Learn GRAILS with Real Code Examples

MVC (Model-View-Controller) architecture

GORM for database persistence

Tag libraries and GSP (Groovy Server Pages) for views

Service layer for business logic

Event system for decoupled operations

Controller receives request

Service executes business logic

GSP template renders HTML

Response returned to client

Optional JSON/XML output for APIs

MVC - separation of concerns

Dependency Injection - service management via Spring

Event system for decoupled operations

GORM for database persistence

Scaffolding for rapid CRUD interfaces

Enterprise CRM platform with GORM entities

E-commerce platform with Spring Boot integration

SaaS application serving thousands of users

Microservices architecture using Grails apps

Event-driven systems with background processing

Convention-over-configuration

Rapid application development

Groovy dynamic features for concise code

Integration with Spring Boot and Java ecosystem

Scaffolding and GORM for productivity

Use caching for frequent queries

Optimize GORM/Hibernate queries

Scale JVM instances horizontally

Use background jobs and queues

Monitor with JVM profiling tools

Update Grails version and plugins

Refactor deprecated Groovy methods

Test controllers, services, and domain classes

Deploy incrementally to avoid downtime

Monitor performance and logs