Dear All,
I am an expert in DNN skin designing, Module development & configuration. I have done the installation of HOTCAKE but I need to know if I need to do the enhancement in existing module like check out page where can i find the source code for this module.

Generally, Each project has the stand-alone project file that I did not find it anywhere.

If you please inform me from where I can get the source file it will be great

Hello:

I'm not entirely sure what you're asking to do, but here's documentation on how to update the viewsets, including the checkout view itself. You can modify 100% of the output seen by customers by modifying your custom viewset.

https://hotcakescommerce...Creating-Custom-Viewsets 

If you're asking how to alter the source code for the checkout module itself, I would advise against this.

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My customer requirement is to integrate some rounding additional feature with the HOTCAKE check out page.

I just want to know how to upgrade this functionality with Hotcake existing check out page. I already made a code with my custom module and functionality is ready with me just need to implement in the HOTCAKE checkout page

Hi Rashid

Did you look into the Action-Delegate Pipeline Integration Project?
https://hotcakescommerce.zendesk.com/hc/en-us/articles/204725949-Example-Action-Delegate-Pipeline-Integration-Project 

You can execute custom code in cart and checkout. With this you may not have to alter your viewsets and therefore keep future updates easier.

Whatever you do, listen to Will's advice an do not alter the sourcecode for the checkout module.

Hi Rashid

Did you look into the Action-Delegate Pipeline Integration Project?
https://hotcakescommerce.zendesk.com/hc/en-us/articles/204725949-Example-Action-Delegate-Pipeline-Integration-Project 

You can execute custom code in cart and checkout. With this you may not have to alter your viewsets and therefore keep future updates easier.

Whatever you do, listen to Will's advice an do not alter the sourcecode for the checkout module.

I'd agree with these recommendations... when working within a Hotcakes implementation, it's best not to modify the source/checkout of Hotcakes core... instead, the Pipeline is the intended way for you to modify how checkout works and to make any changes to rounding, adding items, etc in the cart checkout process.