App2App payment

Barion App2App Payment makes it possible to easily pay with Barion balance or credit card through Barion Smart Gateway and purchase any goods/services in the integration applications. .

Payment is initiated by an application. There are two ways to pay:

• If the Barion mobile application is available on the mobile device (iOS, Android) the customer will pay in the Barion mobile app. In order to use the Barion mobile app, the customer must have an activated Barion wallet.
• If the Barion mobile application isn't available on the mobile device the payment is made on Barion's responsive website, just like for web payment. The website is accessible on every platform and customers don't have to have Barion wallet.

The documentation below shows the integration processes.

Before you start to integrate we recommend reading this description.

Integration possibilities

You can integrate Barion Smart Gateway into mobile apps in three ways:

1. With your own server-side
   • In this case, the mobile application doesn't communicate directly with the Barion system.
   • On your server-side you can use for example our PHP Library, you can find it on Barion's Github page
2. With Barion Mobile Library
   • In this case, your mobile application will communicate with the Barion System through our Barion Mobile Library.
   • You can find Android and iOS libraries on Barion's GitHub page
3. Totally native implementation (we don't recommend it)
   • In this case, your mobile application will communicate directly with the Barion System and you need to implement everything on your own.

In all cases, it is highly recommended to obfuscate client applications! We recommend using ProGuard or DexGuard.

You can see the integration possibilities pros and cons in this table:

Using server-side
Pros	Cons
The client application won't contain sensitive information. Because the client application will communicate at first with your own server-side you can log the network communication and also you can add extra information to it.	Includes additional server side enhancements. you need to handle the availability of the Barion application on the users device.
With Barion Mobile Library
Pros	Cons
The library will handle the whole communication with the Barion System You don't need to handle when Barion application is available on the user's device or not.	The integrator application will contain the POSKey. In order for the integrator's server-side to be notified about the payments, the client should send it.
Native solution (not recommended)
Pros	Cons
	A lot of sensitive information will be in the integrator application. The integrator application should handle every network communication. You need to handle when the Barion application is available on the user's device or not.

Integration descriptions

Integrate on Android	Integrate on iOS
Using server-side With Library	Using server-side With Library

Examples

• Android example on GitHub
• iOS example on GitHub