About App2App SDK

You can make your payment with amount and the registration information that you send to the softPOS application without adding any payment library to your application, with App2app integration. Data exchange is provided between applications by creating channel with Messenger Service.

Scheme of App2App communication

How to import App2App SDK?

Follow the steps below to import App2App SDK in your application.

Place the App2AppSDK library file in the directory where your application dependencies are stored, typically in the libs folder
Add the library to gradle dependencies as 'implementation' like shown below:

allprojects {
	repositories {
  	flatDir {
			dirs 'libs'
    }
  }
}

 dependencies {
			implementation(name:'App2App-SDK-v1.0.0-Debug', ext:'aar') 
}

Now you are ready to use this by initializing the App2App SDK.

Payment app response code list

Field	Value	Description
1002	Internal Error	Unexpected error in app
1003	Register error	error encountered during registration. Backend message can be added to the continuation. For example : Register error : Server Error please contact with your administrator
1004	unregister ERROR, please try again	If registerParameter is sent, softpos app unregister then registers. Message during unregisteration.
1005	Initialize error	If an error is received during initialize, this code and message are returned. Backend message can be added to the continuation.
1006	JsonParse error	If the message from Merchant application is not suitable for the json structure, this message and code will return.
1007	Amount cannot be alphanumeric characters, null, 0	Relates to the submitted amount.
1008	transaction size = 0	If there is no transaction and you want to see the last transaction (appLastTxn), this message returns.
1009	Registration Successful
1010	SoftposApp Stoped
1011	The application was closed because application was opened standalone	In app2app there is a feature as standalone mode which allows application gets payment independent from merchant app. If this feature is disabled and payment app started this error is returned.
1012	Connection Error	This error is returned when there is a problem with the connection
1013	Manual Settlement Successful	This response is returned when manual settlement process is completed
1014	Registration Needed	This error is returned if required registration does not exist.