The following document will walk you through 2 different options for the required server set-up while using any of Dapi SDKs.

Server-based

Server-based set-up is the most secure way of setting up interactions between your users and Dapi. This flow is highly recommended for any client using the Payment API.

Serverless

Serverless set-up requires less development work, but cannot ensure the same level of security as the server-based set-up does. This flow is not recommended for any client using the Payment API, but it can be utilized by Data API clients or for building a POC/MVP of a product.

It is possible at any given moment to switch from Serverless to Server-based flow and vice versa.

Summary

	Server-based	Serverless
Security	✅ More secure	Less secure
Using Payment API?	✅	❌ Not recommended
Using Data API?	✅	✅
Building a POC/MVP?	✅	✅ Less development overhead
What if I change my mind?	Possible to switch to `Serverless` at any moment	Possible to switch to `Server-based` at any moment