Hey guys, today in this post we are going to learn about How to Call an apex method imperatively and fetching contact record from database without @wire through lightning data-table in LWC.
Files we used in this post example:-
lwcFetchContactRecord.html | Lightning Web Component HTML | Template HTMLΒ file for used to write HTML element for user interface. |
lwcFetchContactRecord.js | Lightning Web Component JavaScript | It is importing Apex Class, Apex method, Object and fields from "@salesforce/apex/" |
lwcFetchContactRecord.js-meta.xml | XML Meta File | It is used for where this lightning web component should be exposed. |
lwcAppExampleApex.cls | Apex Controller | It is used for call apex method imperatively in LWC Javascript file. |
Live Demo
You can download file directly from github by Click Here.
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Step 1:- Create Lightning Web Component : lwcFetchContactRecord
SFDX:Lightning Web Component >> New >> lwcFetchContactRecord
lwcFetchContactRecord [Lightning Web Component HTML]
<template>
<lightning-card>
<h3 slot="title">
<lightning-icon icon-name="standard:contact" size="small"></lightning-icon> Fetching contact record from apex method without @wire
</h3>
<lightning-datatable data={contactData} columns={contactTable} key-field="Id"></lightning-datatable>
<br/><br/>
<!--Start RelatedTopics Section-->
<div style="border:1px #ddd solid; padding:10px; background:#eee; margin:40px 0;">
<p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:16px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span><a href="https://www.w3web.net/" target="_blank" rel="noopener noreferrer" style="text-decoration:none;" data-aura-rendered-by="440:0">An easy way to learn step-by-step online free Salesforce tutorial, To know more Click <span style="color:#ff8000; font-size:18px;" data-aura-rendered-by="442:0">Here..</span></a></strong></p>
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<div style="display:block; overflow:hidden;">
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</div>
<div style="width: 50%; float:left; display:inline-block">
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<li><a href="https://www.w3web.net/display-account-related-contacts-lwc/" target="_blank" rel="noopener noreferrer">display account related contacts based on account name in lwc</a></li>
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</div>
<div style="clear:both;"></div>
<br/>
<div class="youtubeIcon">
<a href="https://www.youtube.com/channel/UCW62gTen2zniILj9xE6LmOg" target="_blank" rel="noopener noreferrer"><img src="https://www.w3web.net/wp-content/uploads/2021/11/youtubeIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong>TechW3web:-</strong> To know more, Use this <span style="color: #ff8000; font-weight: bold;">Link</span> </a>
</div>
</div>
</div>
<!--End RelatedTopics Section-->
</lightning-card>
</template>
Step 2:- Create Lightning Web Component : lwcFetchContactRecord.js
SFDX:Lightning Web Component >> New >> lwcFetchContactRecord.js
lwcFetchContactRecord.js [LWC JavaScript File]
import { api, LightningElement, track } from 'lwc';
import getContactList from '@salesforce/apex/lwcAppExampleApex.getContactList';
import {NavigationMixin} from 'lightning/navigation';
export default class lwcFetchContactRecord extends NavigationMixin (LightningElement) {
@api title;
@api greetings;
@track contactData;
@track conError;
@track contactTable = [
{label:'First Name', fieldName:'FirstName', type:'text'},
{label:'Last Name', fieldName:'LastName', type:'text'},
{label:'Phone', fieldName:'Phone', type:'text'},
{label:'Email', fieldName:'Email', type:'email'},
];
connectedCallback(){
getContactList()
.then(result =>{
this.contactData = result;
})
.catch(error =>{
this.conError=error;
});
}
}
Step 3:- Create Lightning Web Component : lwcFetchContactRecord.js-meta.xml
SFDX:Lightning Web Component >> New >> lwcFetchContactRecord.js-meta.xml
lwcFetchContactRecord.js-meta.xml [LWC Meta Data XML]
<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
<apiVersion>45.0</apiVersion>
<isExposed>true</isExposed>
<targets>
<target>lightning__AppPage</target>
<target>lightning__RecordPage</target>
<target>lightning__HomePage</target>
</targets>
<targetConfigs>
<targetConfig targets="lightning__AppPage">
<property name="title" type="string"/>
<property name="greetings" type="string"/>
</targetConfig>
</targetConfigs>
</LightningComponentBundle>
Step 4:- Create Apex Controller : lwcAppExampleApex.cls
SFDX:Create Apex Class >> New >> lwcAppExampleApex.cls
lwcAppExampleApex.cls [Apex Class]
public WITH sharing class lwcAppExampleApex {
@AuraEnabled
public static List<Contact> getContactList(){
List<Contact> conList = [SELECT Id, FirstName, LastName, Email, Phone FROM Contact WHERE Email !=NULL ];
RETURN conList;
}
}
Further post that would you like to learn in Salesforce
How do you call an apex imperatively in LWC?
To call the apex method imperatively, we need to import the method from @salesforce/apex/ module in variable accounts. Then we can use this variable to call the method and pass the parameters if required. This method will return the Promise.
How do you call APEX method imperatively LWC with parameters?
Pass parameters values to an Apex method in an object whose properties match the parameters of the Apex method. For example, if the Apex method takes a string parameter, don't pass a string directly. Instead, pass an object that contains a property whose value is a string.
How do you call an Apex class from a custom button in Salesforce?
To call an Apex class from custom button or link on the object detail page, create a VisualForce page and call the Apex class method via the action attribute to make it work. Following is some sample code showing how to do that. The action method invoked when this page is requested by the server.
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