---

name: salesforce-development description: Expert patterns for Salesforce platform development including Lightning Web Components (LWC), Apex triggers and classes, REST/Bulk APIs, Connected Apps, and Salesforce DX with scratch orgs and 2nd generation packages (2GP). risk: safe source: vibeship-spawner-skills (Apache 2.0) date_added: 2026-02-27

Salesforce Development

Expert patterns for Salesforce platform development including Lightning Web Components (LWC), Apex triggers and classes, REST/Bulk APIs, Connected Apps, and Salesforce DX with scratch orgs and 2nd generation packages (2GP).

Patterns

Lightning Web Component with Wire Service

Use @wire decorator for reactive data binding with Lightning Data Service or Apex methods. @wire fits LWC's reactive architecture and enables Salesforce performance optimizations.

// myComponent.js import { LightningElement, wire, api } from 'lwc'; import { getRecord, getFieldValue } from 'lightning/uiRecordApi'; import getRelatedRecords from '@salesforce/apex/MyController.getRelatedRecords'; import ACCOUNT_NAME from '@salesforce/schema/Account.Name'; import ACCOUNT_INDUSTRY from '@salesforce/schema/Account.Industry';

const FIELDS = [ACCOUNT_NAME, ACCOUNT_INDUSTRY];

export default class MyComponent extends LightningElement { @api recordId; // Passed from parent or record page

// Wire to Lightning Data Service (preferred for single records) @wire(getRecord, { recordId: '$recordId', fields: FIELDS }) account;

// Wire to Apex method (for complex queries) @wire(getRelatedRecords, { accountId: '$recordId' }) wiredRecords({ error, data }) { if (data) { this.relatedRecords = data; this.error = undefined; } else if (error) { this.error = error; this.relatedRecords = undefined; } }

get accountName() { return getFieldValue(this.account.data, ACCOUNT_NAME); }

get isLoading() { return !this.account.data && !this.account.error; }

// Reactive: changing recordId automatically re-fetches }

// myComponent.html <template> <lightning-card title={accountName}> <template if:true={isLoading}> <lightning-spinner alternative-text="Loading"></lightning-spinner> </template>

<template if:true={account.data}>
  <p>Industry: {industry}</p>
</template>

<template if:true={error}>
  <p class="slds-text-color_error">{error.body.message}</p>
</template>

</lightning-card> </template>

// MyController.cls public with sharing class MyController { @AuraEnabled(cacheable=true) public static List<Contact> getRelatedRecords(Id accountId) { return [ SELECT Id, Name, Email, Phone FROM Contact WHERE AccountId = :accountId WITH SECURITY_ENFORCED LIMIT 100 ]; } }

Context

• building LWC components
• fetching Salesforce data
• reactive UI

Bulkified Apex Trigger with Handler Pattern

Apex triggers must be bulkified to handle 200+ records per transaction. Use handler pattern for separation of concerns, testability, and recursion prevention.

// AccountTrigger.trigger trigger AccountTrigger on Account ( before insert, before update, before delete, after insert, after update, after delete, after undelete ) { new AccountTriggerHandler().run(); }

// TriggerHandler.cls (base class) public virtual class TriggerHandler { // Recursion prevention private static Set<String> executedHandlers = new Set<String>();

public void run() { String handlerName = String.valueOf(this).split(':')[0];

// Prevent recursion
String contextKey = handlerName + '_' + Trigger.operationType;
if (executedHandlers.contains(contextKey)) {
  return;
}
executedHandlers.add(contextKey);

switch on Trigger.operationType {
  when BEFORE_INSERT { this.beforeInsert(); }
  when BEFORE_UPDATE { this.beforeUpdate(); }
  when BEFORE_DELETE { this.beforeDelete(); }
  when AFTER_INSERT { this.afterInsert(); }
  when AFTER_UPDATE { this.afterUpdate(); }
  when AFTER_DELETE { this.afterDelete(); }
  when AFTER_UNDELETE { this.afterUndelete(); }
}

}

// Override in child classes protected virtual void beforeInsert() {} protected virtual void beforeUpdate() {} protected virtual void beforeDelete() {} protected virtual void afterInsert() {} protected virtual void afterUpdate() {} protected virtual void afterDelete() {} protected virtual void afterUndelete() {} }

// AccountTriggerHandler.cls public class AccountTriggerHandler extends TriggerHandler { private List<Account> newAccounts; private List<Account> oldAccounts; private Map<Id, Account> newMap; private Map<Id, Account> oldMap;

public AccountTriggerHandler() { this.newAccounts = (List<Account>) Trigger.new; this.oldAccounts = (List<Account>) Trigger.old; this.newMap = (Map<Id, Account>) Trigger.newMap; this.oldMap = (Map<Id, Account>) Trigger.oldMap; }

protected override void afterInsert() {