EposSDK-Refund

EposSDK-Refund.java

import java.math.BigDecimal;
import de.wirecard.epos.EposSDK;
import de.wirecard.epos.model.sale.builder.RefundRequest;
import de.wirecard.epos.model.sale.builder.payment.CashRefundPayment;
import de.wirecard.epos.model.with.With;
import de.wirecard.epos.model.with.WithBase;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;


//initialize your params   
String originalSaleId;

CashRefundPayment refundPayment = new CashRefundPayment(new BigDecimal("15"));
RefundRequest refundRequest = new RefundRequest(originalSaleId, refundPayment);

eposSDK.sales().operation()
        .refund(refundRequest)
        .observeOn(AndroidSchedulers.mainThread())  // in case you want result in main thread
        .subscribe(saleNonErrorResponse -> {
            // check for response from backend
        }, throwable -> {
            //handle error
        });

//******************** USING WITH PARAMETER ********************//
WithBase withBase = With.base().scheduler(Schedulers.newThread()); // in case you want request to run on specific thread
eposSDK.sales().operation()
        .refund(refundRequest, withBase)
        .observeOn(AndroidSchedulers.mainThread())  // in case you want result in main thread
        .subscribe(saleNonErrorResponse -> {
            // check for response from backend
        }, throwable -> {
            //handle error
        });