Calling the apex Method using wire LWC

Lightning web component to call Apex method

Things to remember before you call apex method with wire in LWC.
  • Apex controller method should be static
  • It should annotated with @AuraEnable(cacheable=true)
wire-method-lwc
Let's check the below example component to understand more.

callApexUsingWireMethods.html
[<template>
    <lightning-card title="Calling apex method using wire" icon-name="standard:account">
        <div class="slds-m-around_medium"><br/>
            <div class="slds-border_bottom">Calling apex method with wire without params</div>
            <template if:true={accounts.data}>
                <ol class="slds-list_ordered">
                    <template for:each={accounts.data} for:item="acc">
                        <li key={acc.Id}>{acc.Name}</li>
                    </template>
                </ol>
            </template><br/>

            <div class="slds-border_bottom">Calling apex method with wire with params</div>
            <template if:true={account}>
                <div class="slds-box slds-theme_shade">
                    <p>Name: {account.Name}</p>
                    <p>Phone: {account.Phone}</p>
                </div>
            </template>
        </div>
    </lightning-card>
</template>]
callApexUsingWireMethods.js
[import { LightningElement, wire, api } from 'lwc';
import getAllAccounts from '@salesforce/apex/LWC_Util.getAllAccounts';
import accountDetails from '@salesforce/apex/LWC_Util.accountDetails';

export default class CallApexUsingWireMethods extends LightningElement {
    @api recordId = '0012v00002J6XEMAA3';
    account;
    error;

    // wire method to property
    @wire(getAllAccounts)
    accounts;
    
    // Wire Method With Params to function
    @wire(accountDetails, {accountId: '$recordId'})
    accDetails({data, error}){
        if(data){
            this.account = data;
            this.error = undefined;
        } else if(error){
            this.account = undefined;
            this.error = error;
        }
    }
}]

callApexUsingWireMethods.js-meta.xml

[<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>48.0</apiVersion>
    <isExposed>true</isExposed>
    <targets>
        <target>lightning__AppPage</target>
    </targets>
</LightningComponentBundle>]
LWC_Util Apex controller:
[public with sharing class LWC_Util {
    
    @AuraEnabled(cacheable=true)
    public static List<Account> getAllAccounts (){
        return [SELECT Id, Name, AccountNumber, Phone, Industry, Type
                    FROM Account];
    }
    
    @AuraEnabled(cacheable=true)
    public static Account accountDetails (String accountId){
        return [SELECT Id, Name, AccountNumber, Phone, Industry, Type, AnnualRevenue
                    FROM Account
                    WHERE Id=:accountId]; 
    }
}]
also find above code in SWDC World git repo.

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SWDC WORLD (Software Development Center Of The World) - is a Multi author and Multi Technology Blog: Calling the apex Method using wire LWC
Calling the apex Method using wire LWC
Calling the apex Method using wire LWC,Calling apex method with wire with params,Calling apex method with wire without params, lwc to call apex wire
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SWDC WORLD (Software Development Center Of The World) - is a Multi author and Multi Technology Blog
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