sfdevmaster

/**
 * What it does:
    Defines a nested FileWrapper class that holds:
        fileName: Name of the file.
        mimeType: MIME type like application/pdf or image/png.
        base64Data: Encoded file content as a base64 string.
    The method getFileAsBlob():
        Fetches the most recent ContentDocumentLink for the given parentId.
        Retrieves the latest ContentVersion for that ContentDocumentId.
        Converts the binary data to a Base64 string.

sfdevmaster

<template>
    <lightning-card title="Download File From Rest Api Response" icon-name="utility:download">
        <div class="slds-p-around_medium">
            <template if:true={isLoading}>
                <lightning-spinner alternative-text="Loading ZIP..." size="medium"></lightning-spinner>
            </template>
            <lightning-button 
                label="Download"
                onclick={handleDownload}
                disabled={isLoading}

sfdevmaster

/**
 * What it does:
    The method getAttachmentsAsZip():
        Accepts a parentId, which is the ID of the record (e.g., a Case or Account) whose attachments we want to fetch.
        Queries for all attachments associated with that record.
        Uses the Compression.ZipWriter to create a ZIP archive containing all attachments.
        Returns the ZIP file as a Base64-encoded string, which can be used in a Lightning Web Component (LWC) to trigger a download.
 */
public with sharing class FilesDownloaderCtrl {
    /**

sfdevmaster

/**
 * What it does:
    The method getAttachmentDownloadUrl():
        Accepts a parentId, which is the ID of the record (e.g., a Case or Account) whose attachment we want to fetch.
        Queries for the most recently modified Attachment associated with that record.
        Constructs and returns a standard Salesforce file download URL using the Attachment ID:
            /servlet/servlet.FileDownload?file=<AttachmentId>
            This URL will trigger the browser to download the file when opened.
 */
public with sharing class FilesDownloaderCtrl {

sfdevmaster

/**
 * What it does:
    Defines a nested FileWrapper class that holds:
        fileName: Name of the file.
        mimeType: MIME type like application/pdf or image/png.
        base64Data: Encoded file content as a base64 string.
    The method getAttachmentAsBlob():
        Fetches the most recently updated Attachment record for the given parent record.
        Converts the binary content (Body) to base64.
        Wraps it into a FileWrapper object and returns it to the frontend.

sfdevmaster

//LazyLoadingContactController.apex
public class LazyLoadingContactController {
    @AuraEnabled(cacheable=true)
    public static List<Contact> getAllContacts() {
        return [
            SELECT Id, FirstName,LastName, Email
            FROM Contact WHERE Name Like 'E%' LIMIT 1000];
    }
}

sfdevmaster

public without sharing class CaseController {
    @AuraEnabled(cacheable=true)
    public static List<AggregateResult> getCaseData(String statuses) {
        List<String> statusList = String.isNotBlank(statuses) ? statuses.split(',') : null;
        return [
            SELECT Status, COUNT(Id)
            FROM Case
            WHERE Status IN :statusList
            GROUP BY Status
        ];

sfdevmaster

/**
    * ContactGrabber Apex Class
    * This class provides methods to retrieve related contacts for an account,
    * and fetch account details.
 */
public with sharing class ContactGrabber {
    /**
     * Retrieves all contacts related to a given account.
     * @param acctId The Id of the account for which to retrieve related contacts.
     * @return A list of Contact records related to the specified account.

sfdevmaster

<!--childValidation.html-->
<template>
    <div>
        <div id="test" data-id="test1"></div>
        <lightning-card title="Child Validation Example">
            <div class="slds-m-around_medium">
                <lightning-input 
                    label="Name"
                    data-id="nameField"
                    class="textareaclass"

sfdevmaster

/**
 * StudentApiCalloutAction
 * ----------------------
 * @description
 * This Apex class is designed to perform a callout to an external API to fetch user data based on
 * the university name provided as input. It processes the response and organizes the data into
 * a list of Contact records, which are then returned to the caller.
 * 
 * Key Features:
 * - Uses the `@InvocableMethod` annotation to allow invocation from Flow or Process Builder.