There are many ways to integrate Snipcart with Orchard CMS and any of them would be fine depending on your needs.
If manually adding HTML to each product is too much effort ( especially for a large number of products ), one could customize the shapes of a custom Product Content Type, Layouts, etc. to automatically display the Snipcart HTML Tags. This is much easier to maintain and worth doing if you have the necessary Orchard CMS development skills.
If your Orchard CMS skills are even more impressive, other solutions to integrating Snipcart with Orchard CMS would include custom Snipcart Content Parts and Widgets as well as Parameterized Snippets and custom Elements for use with Orchard Layouts. This would require you to develop custom Orchard Modules, but the reusability across your Orchard Websites might be attractive.
I didn't use Snipcart on the client project, but that didn't stop me from doing a little late night development to integrate Snipcart into Orchard CMS. Shown below are a bunch of features I created for Snipcart in Orchard CMS that I hope to use in future projects. I went ahead and did a very thorough integration that provides 1) custom Orchard settings and resource manifest; 2) various elements for use with Orchard.Layouts, including Add to Cart, View Cart, and Cart Summary Elements; 3) various Content Parts and Widgets; 4) support for Snipcart Webhooks; and 5) Orchard eventhandlers and workflow activities for that extra extensibility.
The Snipcart Settings in Orchard CMS handle the basics as you would expect. It allows you to enter your test and production API Keys for Snipcart as well as a secret key that allows you to access the Snipcart API for your account. One can also set some global settings that you may want to configure for Snipcart, such as disabling cart popups when items are added to a cart as well as including custom order fields. This can be further extended depending on what functionality your e-commerce website might need, of course.
Snipcart Webhooks make things really interesting when it comes to Orchard CMS integration. It would be really easy to handle things like product inventory, downloadable content/distribution, etc. and other features not available with Snipcart. You can do this via the custom Orchard CMS eventhandlers or workflow activities I built for use with Snipcart Webhooks.
If you want to build an e-commerce website with Orchard CMS and Snipcart seems like a good fit, let me know. If I were building an e-commerce website today for myself, I would use this combination of Orchard CMS and Snipcart. Orchard CMS is amazingly extensible and Snipcart just makes e-commerce really simple.
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