Grails 6 Tutorials – Full Topic List

1. Introduction to Grails 6

• What is Grails 6? Architecture & Features

• Difference between Grails 6 and earlier versions

• Grails 6 + Micronaut Integration Overview

• Installing Grails 6 (Windows / Linux / macOS)

• Creating Your First Grails 6 Application

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2. Grails 6 Project Structure

• Understanding the Grails 6 directory layout

• Role of Micronaut inside Grails 6

• Application.groovy vs application.yml

• Working with Profiles (web, rest-api, angular, react)

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3. GORM (Grails 6 version)

• Introduction to GORM 8

• Domain classes & validation

• Relationships (One-to-One, One-to-Many, Many-to-Many)

• Dynamic finders, criteria & where queries

• GORM with Hibernate 6

• Working with GORM Data Services

• GORM Events (beforeInsert, afterUpdate, etc.)

• Native Query Support in GORM

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4. Controllers in Grails 6

• Creating controllers

• Request mapping (URL mappings)

• Command Objects

• Response formats (JSON, XML, HTML)

• Exception Handling / Error Controller

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5. Grails 6 Views (GSP & JSON views)

• GSP Basics

• Tag Libraries and Custom Tags

• Grails Layouts

• JSON Views & Templates

• Groovy Server Pages Security Best Practices

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6. Services in Grails

• Creating services

• Dependency injection (DI with Micronaut)

• Transaction Management

• Async Services using @Async

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7. Security for Grails 6

• Spring Security Core Plugin Setup

• JWT Authentication

• Role-based authorization with Micronaut Security

• OAuth2 / Social Login (Google, GitHub)

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8. REST API Development

• Creating REST Controllers

• Versioning your APIs

• Grails Interceptors for API request/response filters

• API Exception handling

• CORS configuration

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9. Grails 6 with Micronaut Features

• Dependency Injection using Micronaut

• Micronaut HTTP Client

• Micronaut AOP

• Micronaut Caching

• Micronaut Configuration / Profiles

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10. Grails Plugins Development

• Creating a Grails 6 custom plugin

• Publishing your plugin to MavenCentral

• Using existing Grails plugins

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11. Testing in Grails 6

• Unit Testing (Spock)

• Integration Testing

• Functional Testing (Geb)

• Mocking services, domains, and controllers

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12. Database & Persistence

• Connecting to MySQL / PostgreSQL

• Migration using Liquibase

• Database connection pooling

• GORM performance tuning

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13. Grails 6 Performance Optimization

• Caching (Micronaut Cache)

• Query optimization

• Async processing

• GSP optimization

• Profiling Grails apps

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14. Deployment

• Deploy Grails 6 to Apache Tomcat

• Deploy Grails 6 WAR / JAR

• Deploy on AWS / Google Cloud / Azure

• Dockerizing a Grails 6 application

• Using Grails 6 with Kubernetes

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15. Real-world Projects

• Full CRUD Application with Grails 6

• REST API + JWT Security Project

• Grails 6 + React / Angular App

• Grails 6 Microservices Architecture Example