EposSDK-Pre-Authorize-Supplement.java

import com.jakewharton.rxrelay2.BehaviorRelay;
import com.jakewharton.rxrelay2.Relay;

import java.math.BigDecimal;

import de.wirecard.epos.model.sale.builder.ReferenceTerminalPreAuthorizationSupplementRequest;
import de.wirecard.epos.model.sale.builder.payment.CardTerminalPreAuthorizationSupplementPayment;
import de.wirecard.epos.model.with.With;
import de.wirecard.epos.model.with.WithBase;
import de.wirecard.epos.util.events.Event;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;

        WithBase withBase = With.base().scheduler(Schedulers.newThread());
        Relay<Event> eventRelay = BehaviorRelay.create();

        CardTerminalPreAuthorizationSupplementPayment cardTerminalPreAuthorizationSupplementPayment = new CardTerminalPreAuthorizationSupplementPayment(
                // mandatory field
                new BigDecimal("2"),
                // mandatory field, must refer to the last (previous) completed Pre-Authorization transaction or Pre-Authorization Supplement transaction of related transaction chain
                "originalTransactionId",
                // mandatory field, must be filled by value of "authorizationCode" returned in the response of the last (previous) Pre-Authorization transaction or Pre-Authorization Supplement
                // transaction of related transaction chain
                "authorizationCode"
        );

        ReferenceTerminalPreAuthorizationSupplementRequest referenceTerminalPreAuthorizationSupplementRequest = new ReferenceTerminalPreAuthorizationSupplementRequest(
                "originalSaleId", // mandatory field, must refer to the same Sale Purchase as transaction referenced by "originalTransactionId"
                cardTerminalPreAuthorizationSupplementPayment, // mandatory field
                "cashRegisterId",// optional
                "note",// optional
                "externalId"// optional
        );

         eposSDK.sales()
                .operation()
                .referencePurchase(referenceTerminalPreAuthorizationSupplementRequest)
                //.referencePurchase(referenceTerminalPreAuthorizationSupplementRequest, withBase )// in case you want request to run on specific thread
                .subscribeParallel(eventRelay)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(saleId -> {
                    // sale was performed successfully
                    // saleId String is returned, you can load whole sale object by calling epos.sales().getSale(String saleId)
                }, throwable -> {
                    // handle error
                });