Calling an apex method imperatively and fetching contact record from database without @wire through lightning data-table in LWC | how to call an apex method imperatively in lwc

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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 HTML 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.

Don’t forget to check out:- Retrieving data from Account using @wire Decorators in Lightning web Components with apex method and lightning datatable — LWC Click Here For More Information

Live Demo

Other related post that would you like to learn in LWC

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/>
    <p><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong> <span style="font-size:15px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span> <a href="https://www.w3web.net/" target="_blank" style="text-decoration:none;" rel="noopener noreferrer">An easy way to learn step-by-step online free tutorial, To know more Click  <span style="color:#ff8000; font-size:18px;">Here..</span></a></strong></p>
    </lightning-card>
</template>

<lightning-card>

<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>

<p><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong> <span style="font-size:15px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span> <a href="https://www.w3web.net/" target="_blank" style="text-decoration:none;" rel="noopener noreferrer">An easy way to learn step-by-step online free tutorial, To know more Click <span style="color:#ff8000; font-size:18px;">Here..</span></a></strong></p>

</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;
      });
    }
     

}

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>

<?xml version="1.0" encoding="UTF-8"?>

<target>lightning__AppPage</target>

<target>lightning__RecordPage</target>

<target>lightning__HomePage</target>

</targets>

</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;
    }   

}

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;

}

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Author of w3web.net

Hi, This is Vijay behind the admin and founder of w3web.net. I am a senior software developer and working in MNC company from more than 8 years. I am great fan of technology, configuration, customization & development. Apart of this, I love to write about Blogging in spare time, Working on Mobile & Web application development, Salesforce lightning, Salesforce LWC and Salesforce Integration development in full time.

3 thoughts on “Calling an apex method imperatively and fetching contact record from database without @wire through lightning data-table in LWC | how to call an apex method imperatively in lwc”

Joganireinforcement

February 1, 2021 at 9:10 am

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February 8, 2021 at 9:01 pm

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Fiona Xu

August 9, 2021 at 6:48 am

Amazing article, and I have learned a lot