Introduction
Apex is Salesforce's language for custom business logic and automation.
Read more →Welcome to Apex Primer: Your Gateway to Coding Mastery
Unlock the world of apex with Apex Primer. Access free tutorials, resources, and guides to elevate your coding skills and knowledge.
Basics
Setup
Apex setup uses Salesforce Developer Console or VS Code with CLI.
Read more →Syntax
Apex syntax uses Java-like structure with Salesforce-specific types.
Read more →Variables
Apex variables use explicit types with final for immutability.
Read more →Data Types
Apex data types include String Integer and SObject with strong typing.
Read more →Operators
Apex operators include arithmetic and comparison with SOQL integration.
Read more →If Else
Apex if-else statements control flow with Salesforce data checks.
Read more →Switch
Apex switch statements handle conditions with when clauses.
Read more →Loops
Apex loops use for and while with governor limit awareness.
Read more →Comments
Apex comments use // and /* */ with ApexDoc for APIs.
Read more →Errors
Apex errors use try-catch with custom exceptions for robustness.
Read more →Debugging
Apex debugging uses Debug Logs and VS Code breakpoints.
Read more →Best Practices
Apex best practices include bulkification, governor limit compliance.
Read more →Security Basics
Apex security enforces CRUD and FLS permissions.
Read more →Classes
Classes
Apex classes use public or global with methods and properties.
Read more →Interfaces
Apex interfaces define contracts with abstract methods.
Read more →Inheritance
Apex inheritance uses extends or virtual for polymorphism.
Read more →Abstract Classes
Apex abstract classes provide templates with abstract methods.
Read more →Enums
Apex enums define typed constants for fixed values.
Read more →Data Types
SObjects
Apex SObjects represent Salesforce records like Account.
Read more →Data Structures
Lists
Apex lists use List<T> for dynamic SObject collections.
Read more →Maps
Apex maps use Map<Key Value> for key-value pairs.
Read more →Sets
Apex sets use Set<T> for unique elements.
Read more →Triggers
Triggers
Apex triggers execute logic on record changes like insert.
Read more →Trigger Context
Apex trigger context uses Trigger.isInsert for event checks.
Read more →Trigger Bulkification
Apex trigger bulkification handles bulk DML with collections.
Read more →Trigger Handlers
Apex trigger handlers modularize logic for reusable triggers.
Read more →Trigger Patterns
Apex trigger patterns use frameworks for scalable logic.
Read more →Methods
Methods
Apex methods use typed parameters with access modifiers.
Read more →Static Methods
Apex static methods use static for shared logic.
Read more →Instance Methods
Apex instance methods operate on class instances.
Read more →Virtual Methods
Apex virtual methods allow overriding in subclasses.
Read more →Queries
SOQL Queries
Apex SOQL queries retrieve Salesforce data with bind variables.
Read more →Dynamic SOQL
Apex dynamic SOQL builds queries at runtime with strings.
Read more →SOSL Queries
Apex SOSL queries search across multiple Salesforce objects.
Read more →Data Manipulation
DML Operations
Apex DML operations use insert update and delete.
Read more →Database Methods
Apex Database methods like Database.insert handle partial success.
Read more →Record Locking
Apex record locking uses FOR UPDATE to prevent conflicts.
Read more →Batch Processing
Batch Apex
Apex Batch Apex processes large datasets with start and execute.
Read more →Queueable Apex
Apex Queueable Apex runs asynchronous jobs with chaining.
Read more →Schedulable Apex
Apex Schedulable Apex schedules jobs with System.schedule.
Read more →Future Methods
Apex future methods run asynchronous tasks with @future.
Read more →Events
Platform Events
Apex platform events publish and subscribe to custom events.
Read more →Event Triggers
Apex event triggers process platform events with after insert.
Read more →Web Services
REST Services
Apex REST services use @RestResource for custom APIs.
Read more →SOAP Services
Apex SOAP services use @WebService for WSDL-based APIs.
Read more →HTTP Callouts
Apex HTTP callouts use Http class for external APIs.
Read more →Webhooks
Apex webhooks handle external events via REST endpoints.
Read more →Metadata
Custom Metadata
Apex custom metadata stores configuration with SOQL queries.
Read more →Custom Settings
Apex custom settings manage app settings with hierarchy.
Read more →Security
Apex Sharing
Apex sharing uses Share records for programmatic access control.
Read more →User Permissions
Apex user permissions enforce CRUD and FLS with Schema.
Read more →SOQL Injection
Apex SOQL injection uses bind variables for secure queries.
Read more →Performance
Governor Limits
Apex governor limits restrict SOQL DML and CPU usage.
Read more →Bulkification
Apex bulkification processes records in batches to avoid limits.
Read more →Query Optimization
Apex query optimization uses selective SOQL for performance.
Read more →Testing
Test Classes
Apex test classes use @isTest for unit and integration tests.
Read more →Unit Testing
Apex unit testing validates methods with Test.startTest.
Read more →Mock Testing
Apex mock testing uses HttpCalloutMock for callout tests.
Read more →Test Data
Apex test data uses Test.createStub for isolated tests.
Read more →Deployment
Deployment
Apex deployment uses Change Sets or Salesforce CLI.
Read more →Metadata API
Apex Metadata API manages Salesforce customizations programmatically.
Read more →Tooling API
Apex Tooling API creates and updates Apex classes.
Read more →UI Development
Visualforce
Apex Visualforce builds custom UIs with controllers.
Read more →Lightning Components
Apex Lightning Components create dynamic UIs with Aura.
Read more →LWC
Apex LWC integrates with Lightning Web Components for UI.
Read more →Integration
Email Services
Apex email services process inbound emails with handlers.
Read more →Outbound Messages
Apex outbound messages send SOAP notifications to endpoints.
Read more →Flow Integration
Apex Flow integration uses InvocableMethod for automation.
Read more →Examples
REST Callout
Apex REST callout fetches external data with HttpRequest.
Read more →Trigger
Apex trigger automates Account updates with after insert logic.
Read more →Batch Job
Apex batch job processes Opportunities with Database.Batchable.
Read more →REST Service
Apex REST service exposes Account data with @RestResource.
Read more →Visualforce Page
Apex Visualforce page displays Contacts with a controller.
Read more →LWC Component
Apex LWC component fetches Opportunity data for UI.
Read more →Email Handler
Apex email handler processes inbound emails with Messaging.
Read more →Platform Event
Apex platform event publishes custom notifications with EventBus.
Read more →Custom Metadata
Apex custom metadata query retrieves app settings with SOQL.
Read more →Test Class
Apex test class validates trigger logic with @isTest.
Read more →Explore Our Tools
Apex Code Commenter Guide
This page provides the Apex Code Commenter Guide tool. Utilize it for your tasks.
Go to tool →Apex Code Formatter Guide
This page provides the Apex Code Formatter Guide tool. Utilize it for your tasks.
Go to tool →Apex Error Explainer Guide
This page provides the Apex Error Explainer Guide tool. Utilize it for your tasks.
Go to tool →Apex Governor Limits Checker Guide
This page provides the Apex Governor Limits Checker Guide tool. Utilize it for your tasks.
Go to tool →Apex REST Service Explainer Guide
This page provides the Apex REST Service Explainer Guide tool. Utilize it for your tasks.
Go to tool →Apex SOQL Query Builder Guide
This page provides the Apex SOQL Query Builder Guide tool. Utilize it for your tasks.
Go to tool →Apex Standard Library Reference Guide
This page provides the Apex Standard Library Reference Guide tool. Utilize it for your tasks.
Go to tool →Apex Trigger Generator Guide
This page provides the Apex Trigger Generator Guide tool. Utilize it for your tasks.
Go to tool →