Apex

Learn how triggers work with real examples.

Understand when to use before vs after triggers.

Write scalable Apex that handles multiple records.

Understand Trigger.new, old, isInsert, and more.

Learn clean, maintainable Apex trigger design.

Prevent infinite loops and repeated trigger execution.

Separate trigger entry points from handler logic.

Master bulkification, governor limits, and clean code principles.

Learn when to use triggers and when to use Apex classes with real scenarios.

Build scalable architecture with utility classes for common tasks.

Master REST callouts, Named Credentials, and robust error handling.

Understand when to use SOAP or REST APIs for external integrations.

Parse and serialize JSON with wrapper classes and real API examples.

Achieve 100% coverage the right way with proper test data setup.

Master @future, Queueable, and Batch Apex with real use cases.

Handle exceptions properly with try/catch and custom exceptions.

Avoid hitting limits with selective queries and efficient data retrieval.

Implement with sharing, FLS, and CRUD checks for secure code.