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Table of Contents

Documentation

Please see the main ASL documentation

Description

The Retail Module provides simplified connection and asynchronous communication with a Nexo Retail SaleSystem.

Goal and usage

This Module’s main functionality is to provide and manage an Event stream with a SaleSystem, allowing a Merchant application to efficiently receive triggers for actions such as Payment Requests, Display Requests, Input Requests. It also give simplified ways to provide Response to those events.

A secondary goal of the Retail Module is to manage the connectivity and system state with as little overview from the Merchant application as possible, allowing transparent management of System state. This allows the module to filter events that the Merchant Application is not awaiting, minimizing integration overhead.

Info

For example, while the System is currently in a Service exchange, the module will automatically respond to incoming different Service requests with a Busy response

How to?

Initialize a Server mode Module

In Server mode, a Retail Module is awaiting a Sale System connection passively. When that connection is lost or terminated, it will go back to awaiting the next one.

To start in Server mode, use the static factory function StartServer on the AmadisRetailModule class, providing the port on which to await connections

Code Block
NexoRetailModule retailModule = NexoRetailModule.StartServer(serverPort);

Initialize a Client mode Module

In Client mode, a Retail Module is actively trying to connect to a Sale System. When that connection is lost or terminated, it will continue trying to reconnect.

To start in Server mode, use the static factory function StartClient on the AmadisRetailModule class, providing the hostname and port of the Sale System

Code Block
NexoRetailModule retailModule = NexoRetailModule.StartClient(saleHostname, salePort);

Poll the Module for Sale events

Info

See Events for the supported event types and specifications

Code Block
// With timeout in ms
NexoEvent event = retailModule.pollTimeout(1000);

// Non-blocking
NexoEvent event = retailModule.poll();

NexoEventType type = event.GetType();
switch (type) {
case Login: 
  {...}
[...]
}

Respond to a previously polled event

Code Block
languagecpp
// Previously polled event
NexoEvent event = [...];

// Create response data content according to event type
byte[] responseData = {...};

// Send response
retailModule.respond(event, responseData);

Signal a System state change

Code Block
languagecpp
retailModule.signal(NexoSignal.CardDetected);

retailModule.signal(NexoSignal.Busy);
retailModule.signal(NexoSignal.Available);

Examples

Login

NexoRetail Feature

Login

XML message Login request

Expand
titlexml message login request

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader ProtocolVersion="3.0" MessageClass="Service" MessageCategory="Login" MessageType="Request" ServiceID="1" SaleID="ArkosSales" POIID="AFDB0001" />
<LoginRequest OperatorLanguage="en" OperatorID="fbe">
<DateTime>2019-08-21T13:21:23+05:00</DateTime>
<SaleSoftware ManufacturerID="Amadis" ApplicationName="ArkosSalesInterface" SoftwareVersion="0.2.3" CertificationCode="NotCertified" />
</LoginRequest>
</SaleToPOIRequest>

XML message Login response

Expand
titlexml message login response

<?xml version="1.0" encoding="UTF-8"?><SaleToPOIResponse><MessageHeader ServiceID="1" POIID="AFDB0001" MessageType="Response" ProtocolVersion="3.0" SaleID="ArkosSales" MessageCategory="Login" MessageClass="Service" /><LoginResponse><Response Result="Success" /><POISystemData><DateTime>2022-03-21T12:40:34.160-04:00</DateTime><POISoftware SoftwareVersion="1.0" CertificationCode="NA" ApplicationName="Application" ManufacturerID="Manufacturer" /><POIStatus GlobalStatus="OK" /></POISystemData></LoginResponse></SaleToPOIResponse>

Simple Payment

NexoRetail Feature

Payment

XML message Payment request

Expand
titlexml message simple payment

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader MessageClass="Service" MessageCategory="Payment" MessageType="Request" ServiceID="2" SaleID="ArkosSales" POIID="AFDB0001" />
<PaymentRequest>
<SaleData SaleReferenceID="ArkosSale42">
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00" />
</SaleData>
<PaymentTransaction>
<AmountsReq Currency="EUR" RequestedAmount="1.00" />
<SaleItem ItemID="Banane" ProductCode="77662389" ItemAmount="3" >
<UnitPrice>0.79</UnitPrice>
</SaleItem>
</PaymentTransaction>
<PaymentData PaymentType="Normal" />
</PaymentRequest>
</SaleToPOIRequest>

XML message Payment response

Expand
titlexml message simple payment response

<?xml version="1.0" encoding="UTF-8"?><SaleToPOIResponse>
<MessageHeader MessageType="Response" MessageClass="Service" MessageCategory="Payment" ServiceID="2" POIID="AFDB0001" SaleID="ArkosSales"/>
<PaymentResponse>
<Response Result="Success"/>
<SaleData>
<SaleTransactionID TimeStamp="2019-08-21T14:48:05+05:00" TransactionID="1"/>
</SaleData>
<POIData>
<POITransactionID TransactionID="0000000017" TimeStamp="2022-03-21T13:15:13.277-04:00"/>
</POIData>
<PaymentResult PaymentType="Normal">
<PaymentInstrumentData>
<PaymentInstrumentType>Card</PaymentInstrumentType>
<CardData>
<PaymentBrand>Carte a Piste</PaymentBrand>
<MaskedPAN>5219********0517</MaskedPAN>
<EntryMode>MagStripe</EntryMode>
</CardData>
</PaymentInstrumentData>
<AmountsResp AuthorizedAmount="1" Currency="EUR"/>
<PaymentAcquirerData MerchantID="00000NEXOMER001" AcquirerPOIID="ASA00007" AcquirerID="Processor A Short Name">
<ApprovalCode>002026</ApprovalCode>
</PaymentAcquirerData>
<AmadisTicketData>
<TVR>0000000000</TVR>
<TSI>0000</TSI>
<ApplicationPreferredName>Carte a Piste</ApplicationPreferredName>
<CVM>3F0000</CVM>
<ARC>3030</ARC>
</AmadisTicketData>
</PaymentResult>
</PaymentResponse>
</SaleToPOIResponse>

Payment with cashback

NexoRetail Feature

Payment with cashback

XML message Payment request

Expand
titlexml message payment request with cashback

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader MessageClass="Service" MessageCategory="Payment" MessageType="Request" ServiceID="2" SaleID="ArkosSales" POIID="AFDB0001" />
<PaymentRequest>
<SaleData SaleReferenceID="ArkosSale42">
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00" />
</SaleData>
<PaymentTransaction>
<AmountsReq Currency="EUR" RequestedAmount="50.00" CashBackAmount="20.00"/>
<SaleItem ItemID="Banane" ProductCode="77662389" ItemAmount="3" >
<UnitPrice>0.79</UnitPrice>
</SaleItem>
</PaymentTransaction>
<PaymentData PaymentType="Normal" />
</PaymentRequest>
</SaleToPOIRequest>

XML message Payment response

Expand
titlexml message payment response with cashback

<?xml version="1.0" encoding="UTF-8"?>
<SaleToPOIResponse>
<MessageHeader POIID="AFDB0001" MessageCategory="Payment" SaleID="ArkosSales" ServiceID="2" MessageType="Response" MessageClass="Service"/>
<PaymentResponse>
<Response Result="Success"/>
<SaleData>
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00"/>
</SaleData>
<POIData>
<POITransactionID TransactionID="0000000018" TimeStamp="2022-03-21T13:22:43.151-04:00"/>
</POIData>
<PaymentResult PaymentType="Normal">
<PaymentInstrumentData>
<PaymentInstrumentType>Card</PaymentInstrumentType>
<CardData>
<PaymentBrand>Carte a Piste</PaymentBrand>
<MaskedPAN>5219********0517</MaskedPAN>
<EntryMode>MagStripe</EntryMode>
</CardData>
</PaymentInstrumentData>
<AmountsResp Currency="EUR" CashBackAmount="20" AuthorizedAmount="50"/>
<PaymentAcquirerData AcquirerPOIID="ASA00007" AcquirerID="Processor A Short Name" MerchantID="00000NEXOMER001">
<ApprovalCode>002027</ApprovalCode>
</PaymentAcquirerData>
<AmadisTicketData>
<TVR>0000000000</TVR>
<TSI>0000</TSI>
<ApplicationPreferredName>Carte a Piste</ApplicationPreferredName>
<CVM>3F0000</CVM>
<ARC>3030</ARC>
</AmadisTicketData>
</PaymentResult>
</PaymentResponse>
</SaleToPOIResponse>

Payment with tip

NexoRetail Feature

Payment with tip

XML message Payment request

Expand
titlexml message payment request with tip

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader MessageClass="Service" MessageCategory="Payment" MessageType="Request" ServiceID="2" SaleID="ArkosSales" POIID="AFDB0001" />
<PaymentRequest>
<SaleData SaleReferenceID="ArkosSale42">
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00" />
</SaleData>
<PaymentTransaction>
<AmountsReq Currency="EUR" RequestedAmount="50.00" TipAmount="20.00"/>
<SaleItem ItemID="Banane" ProductCode="77662389" ItemAmount="3" >
<UnitPrice>0.79</UnitPrice>
</SaleItem>
</PaymentTransaction>
<PaymentData PaymentType="Normal" />
</PaymentRequest>
</SaleToPOIRequest>

XML message Payment response

Expand
titlexml message payment response with tip

<?xml version="1.0" encoding="UTF-8"?>
<SaleToPOIResponse>
<MessageHeader MessageCategory="Payment" POIID="AFDB0001" SaleID="ArkosSales" MessageClass="Service" MessageType="Response" ServiceID="2"/>
<PaymentResponse>
<Response Result="Success"/>
<SaleData>
<SaleTransactionID TimeStamp="2019-08-21T14:48:05+05:00" TransactionID="1"/>
</SaleData>
<POIData>
<POITransactionID TransactionID="0000000019" TimeStamp="2022-03-21T13:34:04.354-04:00"/>
</POIData>
<PaymentResult PaymentType="Normal">
<PaymentInstrumentData>
<PaymentInstrumentType>Card</PaymentInstrumentType>
<CardData>
<PaymentBrand>Carte a Piste</PaymentBrand>
<MaskedPAN>5219********0517</MaskedPAN>
<EntryMode>MagStripe</EntryMode>
</CardData>
</PaymentInstrumentData>
<AmountsResp AuthorizedAmount="50" TipAmount="20" Currency="EUR"/>
<PaymentAcquirerData AcquirerPOIID="ASA00007" AcquirerID="Processor A Short Name" MerchantID="00000NEXOMER001">
<ApprovalCode>002028</ApprovalCode>
</PaymentAcquirerData>
<AmadisTicketData>
<TVR>0000000000</TVR>
<TSI>0000</TSI>
<ApplicationPreferredName>Carte a Piste</ApplicationPreferredName>
<CVM>3F0000</CVM>
<ARC>3030</ARC>
</AmadisTicketData>
</PaymentResult>
</PaymentResponse>
</SaleToPOIResponse>

Payment with cashback and tip

NexoRetail Feature

Payment with cashback and tip

XML message Payment request

Expand
titlexml message payment request with cashback and tip

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader MessageClass="Service" MessageCategory="Payment" MessageType="Request" ServiceID="2" SaleID="ArkosSales" POIID="AFDB0001" />
<PaymentRequest>
<SaleData SaleReferenceID="ArkosSale42">
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00" />
</SaleData>
<PaymentTransaction>
<AmountsReq Currency="EUR" RequestedAmount="50.00" TipAmount="20.00" CashBackAmount="10.00"/>
<SaleItem ItemID="Banane" ProductCode="77662389" ItemAmount="3" >
<UnitPrice>0.79</UnitPrice>
</SaleItem>
</PaymentTransaction>
<PaymentData PaymentType="Normal" />
</PaymentRequest>
</SaleToPOIRequest>

XML message Payment response

Expand
titlexml message payment response with cashback and tip

<?xml version="1.0" encoding="UTF-8"?>
<SaleToPOIResponse>
<MessageHeader MessageClass="Service" MessageType="Response" POIID="AFDB0001" MessageCategory="Payment" ServiceID="2" SaleID="ArkosSales"/>
<PaymentResponse>
<Response Result="Success"/>
<SaleData>
<SaleTransactionID TimeStamp="2019-08-21T14:48:05+05:00" TransactionID="1"/>
</SaleData>
<POIData>
<POITransactionID TimeStamp="2022-03-21T13:52:16.900-04:00" TransactionID="0000000021"/>
</POIData>
<PaymentResult PaymentType="Normal">
<PaymentInstrumentData>
<PaymentInstrumentType>Card</PaymentInstrumentType>
<CardData>
<PaymentBrand>Carte a Piste</PaymentBrand>
<MaskedPAN>5219********0517</MaskedPAN>
<EntryMode>MagStripe</EntryMode>
</CardData>
</PaymentInstrumentData>
<AmountsResp Currency="EUR" TipAmount="20" AuthorizedAmount="50" CashBackAmount="10"/>
<PaymentAcquirerData AcquirerPOIID="ASA00007" AcquirerID="Processor A Short Name" MerchantID="00000NEXOMER001">
<ApprovalCode>002030</ApprovalCode>
</PaymentAcquirerData>
<AmadisTicketData>
<TVR>0000000000</TVR>
<TSI>0000</TSI>
<ApplicationPreferredName>Carte a Piste</ApplicationPreferredName>
<CVM>3F0000</CVM>
<ARC>3030</ARC>
</AmadisTicketData>
</PaymentResult>
</PaymentResponse>
</SaleToPOIResponse>

Refund

NexoRetail Feature

Refund

XML message Refund request

Expand
titlexml message simple refund request

<?xml version="1.0"?>
<SaleToPOIRequest>
<MessageHeader MessageClass="Service" MessageCategory="Payment" MessageType="Request" ServiceID="2" SaleID="ArkosSales" POIID="AFDB0001" />
<PaymentRequest>
<SaleData SaleReferenceID="ArkosSale42">
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00" />
</SaleData>
<PaymentTransaction>
<AmountsReq Currency="EUR" RequestedAmount="1.00" />
<SaleItem ItemID="Banane" ProductCode="77662389" ItemAmount="3" />
</PaymentTransaction>
<PaymentData PaymentType="Refund" />
</PaymentRequest>
</SaleToPOIRequest>

XML message Refund response

Expand
titlexml message simple refund response

<?xml version="1.0" encoding="UTF-8"?>
<SaleToPOIResponse>
<MessageHeader POIID="AFDB0001" SaleID="ArkosSales" MessageCategory="Payment" MessageType="Response" ServiceID="2" MessageClass="Service"/>
<PaymentResponse>
<Response Result="Success"/>
<SaleData>
<SaleTransactionID TransactionID="1" TimeStamp="2019-08-21T14:48:05+05:00"/>
</SaleData>
<POIData>
<POITransactionID TransactionID="0000000023" TimeStamp="2022-03-21T21:22:14.404-04:00"/>
</POIData>
<PaymentResult PaymentType="Refund">
<PaymentInstrumentData>
<PaymentInstrumentType>Card</PaymentInstrumentType>
<CardData>
<PaymentBrand>Carte a Piste</PaymentBrand>
<MaskedPAN>5219********0517</MaskedPAN>
<EntryMode>MagStripe</EntryMode>
</CardData>
</PaymentInstrumentData>
<AmountsResp Currency="EUR" AuthorizedAmount="1"/>
<PaymentAcquirerData MerchantID="00000NEXOMER001" AcquirerPOIID="ASA00007"/>
<AmadisTicketData>
<TVR>0000000000</TVR>
<TSI>0000</TSI>
<ApplicationPreferredName>Carte a Piste</ApplicationPreferredName>
<CVM>3F0000</CVM>
<ARC>5931</ARC>
</AmadisTicketData>
</PaymentResult>
</PaymentResponse>
</SaleToPOIResponse>