Magento2 How to reload checkout page summary?

Question

I am using Magento2.1.9 when I am going to the checkout page, order summary reloaded default magento's way so I used a js to our custom module added below code into it

var deferred = $.Deferred();
getTotalsAction([], deferred);

After that applied all commands but not working in reload order summary if any one idea reply me I have try to in other stack solution regarding this but not getting success.

Answer 1

I used one of the very good tutorial for this purpose

you need to add following code in your js file

/*browser:true*/
/*global define*/
define(
 [
 'ko',
 'jquery',
 'Magento_Checkout/js/model/cart/totals-processor/default',
 'Magento_Checkout/js/model/cart/cache'
 ],
 function (ko, ,ドル defaultTotal, cartCache) {
 'use strict';
 return Component.extend({
 updateamount:function () {//your function to update amount
 //your code to update amount
 //after successfull execution you need to add these lines.
 cartCache.set('totals',null);
 defaultTotal.estimateTotals();
 }
 });
 }
);

cartCache.set(‘totals’, null) : set the cart total to calculate totals again, if not using this line then estimateTotals() returns the totals for cache.

defaultTotal.estimateTotals(): executing the process to calculate totals.

Reference: https://webkul.com/blog/update-cart-totals-by-js-on-checkout-page-magento2/

I hope this will help

• Rv Singh: where is this js put it in our custom module js or other custom js create
• Rv Singh: in checkout i used custom fee module and this module call two js one for cart and other is summary js
• Rv Singh: I have to use this code but my layout mess up so if u suggest another way.in console getting js error
• Rv Singh: In console getting error my checkout page layout mismatch