How to create multiple records using the createRecord method in LDS?

In this blog post, we checked how to insert or create a record using createRecord() using LDS.

Then comes the question, is it possible to insert multiple records using createRecord() method in LDS? In short, the answer is YES!

We will be using promises in JavaScript to implement it.

Let me walk you through the code.

<template>
	<lightning-datatable
                    key-field="id"
                    data={data}
                    columns={columns}
                    column-widths-mode="fixed">
	</lightning-datatable>
</template>

duplicateAccounts.html

import {
    LightningElement,
    track,
    wire
} from 'lwc';
import fetchAccounts from '@salesforce/apex/AccountsController.fetchAccounts';
const columns = [{
        label: 'Name',
        fieldName: 'Name'
    },
    {
        label: 'Type',
        fieldName: 'Type'
    },
    {
        label: 'BillingCountry',
        fieldName: 'BillingCountry'
    },
];

export default class DuplicateAccounts extends LightningElement {

    data;
    columns = columns;
    error;


    @wire(fetchAccounts)
    wiredAccounts({
        error,
        data
    }) {
        if (data) {
            this.data = data;
            this.error = undefined;
        } else if (error) {
            this.error = error;
            this.data = undefined;
        }
    }

    handleProcessRecords() {

        // get the selected rows
        var selectedRows = this.template
            .querySelector("lightning-datatable")
            .getSelectedRows();

        // execute all promises
        Promise.all(

            // loop through all the selected records
            selectedRows.map(row => {

                // perform the field mapping
                const fields = {};
                fields[ACCOUNT_NAME_FIELD.fieldApiName] = row.Name;

                // specify the object related info
                const recordInput = {
                    apiName: ACCOUNT_OBJECT.objectApiName,
                    fields
                };

                // return a promise
                return createRecord(recordInput);
            })
        ).then(results => {
        
            // process the results
            console.log(results);
        }).catch(error => {
        
            console.log(error);
        });
    }

}

duplicateAccounts.js

This approach of using promises to insert multiple records using promises is not suggested unless we are very certain that we will only be dealing with less than 5 - 10 records.

Anyday it's suggested that we use Apex to bulk process the records.

Hope this is helpful.