How to trigger an action in LWC component in Salesforce?

Hi Piyush,

You can use api methods in LWC. These are exposed to parent components when decorated api. Here is an example:

Aura component:

cmp:

<lightning:button label=”Get From Poc” onclick=”{!c.getFromPoc}” />
<c:poc aura:id=”poc” />

and its JS:

getFromPoc : function (component, event, helper) {
    let myData = component.find("poc").getMyData();
    console.log("myData => ", myData);
},

Now the child LWC component POC:

JS:

import { LightningElement, wire, api } from 'lwc';
export default class Poc extends LightningElement {
    @apigetMyData() {
        return 'some data from poc';
    }
}

This method getMyData is exposed and can be invoked from parent component (Aura or LWC). Syntax will be same as aura:method invocation as you can see in aura component getFromPocmethod.

Thanks