import { api,LightningElement } from 'lwc'; import { ShowToastEvent } from 'lightning/platformShowToastEvent'; export default class PocCustomComp extends LightningElement { @api recordId; @api acceptedFormats; connectedCallback(){ console.log('recordId =' + this.recordId); } handleUploadFinished() { this.dispatchEvent(new CustomEvent('uploadfinished', { composed: true, bubbles: true, cancelable: true, detail: { data: { name: 'some data', recordId: this.recordId } } })); this.dispatchEvent(new ShowToastEvent({ title: 'Completed', message: 'File has been uploaded', })); } }