This library was made to help people that are using NodeJS to generate and parse EMV QRcode according with the specifications:

Merchant Specification
Consumer Specification

It is a fork of Emmanuel Kiametis library.

This version fixes the CRC generated in cases where the resulting code is less than 4 digits long.

Installing

npm install steplix-emv-qrcps

Modules

There are 2 modules in this library.

Merchant - To work with QRCode according with the Merchant Specification.
Consumer - To work with QRCode according with the Consumer Specification.

Merchant Module

You can use this Module by importing:

const { Merchant } = require('steplix-emv-qrcps');

Methods

buildTLV

const TLV = Merchant.buildTLV(tag, length, value);

Parameter	Description	Type
`tag`	Payload Format Indicator	string
`length`	Point of Initiation Method	number
`value`	Merchant Account Information	string

Return Type	Description
`TLV`	It means an object that stores a Tag + Lenght + Value.

buildEMVQR

const EMVQR = Merchant.buildEMVQR();

// ... OR

const EMVQR = Merchant.buildEMVQR(
    payloadFormatIndicator,
    pointOfInitiationMethod,
    merchantAccountInformation,
    merchantCategoryCode,
    transactionCurrency,
    transactionAmount,
    tipOrConvenienceIndicator,
    valueOfConvenienceFeeFixed,
    valueOfConvenienceFeePercentage,
    countryCode,
    merchantName,
    merchantCity,
    postalCode,
    additionalDataFieldTemplate,
    crc,
    merchantInformationLanguageTemplate,
    rfuForEMVCo,
    unreservedTemplates,
);

Parameter	Description	Type
`payloadFormatIndicator`	Payload Format Indicator	TLV
`pointOfInitiationMethod`	Point of Initiation Method	TLV
`merchantAccountInformation`	Merchant Account Information	map [ id(string) : MerchantAccountInformation ]
`merchantCategoryCode`	Merchant Category Code	TLV
`transactionCurrency`	Transaction Currency	TLV
`transactionAmount`	Transaction Amount	TLV
`tipOrConvenienceIndicator`	Tip or Convenience Indicator	TLV
`valueOfConvenienceFeeFixed`	Value of Convenience Fee Fixed	TLV
`valueOfConvenienceFeePercentage`	Value of Convenience Fee Percentage	TLV
`countryCode`	Country Code	TLV
`merchantName`	Merchant Name	TLV
`merchantCity`	Merchant City	TLV
`postalCode`	Postal Code	TLV
`additionalDataFieldTemplate`	Additional Data Field Template	AdditionalDataFieldTemplate
`crc`	CRC	TLV
`merchantInformationLanguageTemplate`	Merchant Information - Language Template	MerchantInformationLanguageTemplate
`rfuForEMVCo`	RFU for EMVCo	array [ TLV ]
`unreservedTemplates`	Unreserved Templates	map [ id(string) : UnreservedTemplate ]

Return Type	Description
`EMVQR`	It means an object that represents an EMV QRCode.

buildAdditionalDataFieldTemplate

const additionalDataFieldTemplate = Merchant.buildAdditionalDataFieldTemplate();

// ... OR

const additionalDataFieldTemplate = Merchant.buildAdditionalDataFieldTemplate(
    billNumber,
    mobileNumber,
    storeLabel,
    loyaltyNumber,
    referenceLabel,
    customerLabel,
    terminalLabel,
    purposeTransaction,
    additionalConsumerDataRequest,
    rfuForEMVCo,
    paymentSystemSpecific
);

Parameter	Description	Type
`billNumber`	Bill Number	TLV
`mobileNumber`	Country Code	TLV
`storeLabel`	Store Label	TLV
`loyaltyNumber`	Loyalty Number	TLV
`referenceLabel`	Reference Label	TLV
`customerLabel`	Customer Label	TLV
`terminalLabel`	Terminal Label	TLV
`purposeTransaction`	Purpose of Transaction	TLV
`additionalConsumerDataRequest`	Additional Consumer Data Request	TLV
`rfuForEMVCo`	RFU for EMVCo	array [ TLV ]
`paymentSystemSpecific`	Payment System specific templates	map [ id(string) : PaymentSystemSpecific ]

Return Type	Description
`AdditionalDataFieldTemplate`	It means an object that represents an additional data field template.

buildMerchantInformationLanguageTemplate

const merchantInformationLanguageTemplate = Merchant.buildMerchantInformationLanguageTemplate();

// ... OR

const merchantInformationLanguageTemplate = Merchant.buildMerchantInformationLanguageTemplate(
    languagePreference,
    merchantName,
    merchantCity,
    rfuForEMVCo,
);

Parameter	Description	Type
`languagePreference`	Language Preference	TLV
`merchantName`	Name of the merchant	TLV
`merchantCity`	Name of the marchant city	TLV
`rfuForEMVCo`	RFU for EMVCo	array [ TLV ]

Return Type	Description
`MerchantInformationLanguageTemplate`	It means an object that represents a merchant information language template.

buildMerchantAccountInformation

const merchantAccountInformation = Merchant.buildMerchantAccountInformation();

// ... OR

const merchantAccountInformation = Merchant.buildMerchantAccountInformation(
    globallyUniqueIdentifier,
    paymentNetworkSpecific,
);

Parameter	Description	Type
`globallyUniqueIdentifier`	Globally unique identifier	TLV
`paymentNetworkSpecific`	Array of payment network specific	array [ TLV ]

Return Type	Description
`MerchantAccountInformation`	It means an object that represents a merchant account information.

buildUnreservedTemplate

const unreservedTemplate = Merchant.buildUnreservedTemplate();

// ... OR

const unreservedTemplate = Merchant.buildUnreservedTemplate(
    globallyUniqueIdentifier,
    paymentNetworkSpecific,
);

Parameter	Description	Type
`globallyUniqueIdentifier`	Globally unique identifier	TLV
`contextSpecificData`	Array of context of specific data	array [ TLV ]

Return Type	Description
`UnreservedTemplate`	It means an object that represents an unreserved template.

Object Types

TLV

Represents a TAG + Length + Value.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const tag = "01";
const value = "Example";
const length = value.length;

const TLV = Merchant.buildTLV(tag, length, value);

Methods

toString

const tlvStringFormat = TLV.toString();

Return Type	Description
`string`	TLV in string format

dataWithType

const tlvBinaryFormat = TLV.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const tlvRawFormat = TLV.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	TLV in binary OR raw data format

MerchantAccountInformation

Represents a merchant account information.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const merchantAccountInformation = Merchant.buildMerchantAccountInformation();

Methods

toString

const merchantAccountInformationStringFormat = merchantAccountInformation.toString();

Return Type	Description
`string`	MerchantAccountInformation in TLV string format

dataWithType

const merchantAccountInformationBinaryFormat = merchantAccountInformation.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const merchantAccountInformationRawFormat = merchantAccountInformation.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	MerchantAccountInformation in TLV binary OR TLV raw data format

setGloballyUniqueIdentifier

const value = "15600000000";

merchantAccountInformation.setGloballyUniqueIdentifier(value);

Parameters	Description	Type
`value`	Some value	string

addPaymentNetworkSpecific

const id = "03";
const value = "12345678";

merchantAccountInformation.addPaymentNetworkSpecific(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

MerchantInformationLanguageTemplate

Represents a merchant information language template.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const merchantInformationLanguageTemplate = Merchant.buildMerchantInformationLanguageTemplate();

Methods

toString

const merchantInformationLanguageTemplateStringFormat = merchantInformationLanguageTemplate.toString();

Return Type	Description
`string`	MerchantInformationLanguageTemplate in TLV string format

dataWithType

const merchantInformationLanguageTemplateBinaryFormat = merchantInformationLanguageTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const merchantInformationLanguageTemplateRawFormat = merchantInformationLanguageTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	MerchantInformationLanguageTemplate in TLV binary OR TLV raw data format

validate

const isValid = merchantInformationLanguageTemplate.validate();

Return Type	Description
`boolean`	True if required properties is valid otherwise throw an Error

setLanguagePreference

const value = "PT";

merchantInformationLanguageTemplate.setLanguagePreference(value);

Parameters	Description	Type
`value`	Some value	string

setMerchantName

const value = "Merchant Organization";

merchantInformationLanguageTemplate.setMerchantName(value);

Parameters	Description	Type
`value`	Some value	string

setMerchantCity

const value = "Brasilia";

merchantInformationLanguageTemplate.setMerchantCity(value);

Parameters	Description	Type
`value`	Some value	string

addRFUforEMVCo

const id = "03";
const value = "12345678";

merchantInformationLanguageTemplate.addRFUforEMVCo(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

UnreservedTemplate

Represents a merchant account information.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const unreservedTemplate = Merchant.buildUnreservedTemplate();

Methods

toString

const unreservedTemplateStringFormat = unreservedTemplate.toString();

Return Type	Description
`string`	UnreservedTemplate in TLV string format

dataWithType

const unreservedTemplateBinaryFormat = unreservedTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const unreservedTemplateRawFormat = unreservedTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	UnreservedTemplate in TLV binary OR TLV raw data format

setGloballyUniqueIdentifier

const value = "15600000000";

unreservedTemplate.setGloballyUniqueIdentifier(value);

Parameters	Description	Type
`value`	Some value	string

addContextSpecificData

const id = "03";
const value = "12345678";

unreservedTemplate.addContextSpecificData(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

PaymentSystemSpecific

Represents a payment system specific.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const paymentSystemSpecific = Merchant.buildPaymentSystemSpecific();

Methods

toString

const paymentSystemSpecificStringFormat = paymentSystemSpecific.toString();

Return Type	Description
`string`	PaymentSystemSpecific in TLV string format

dataWithType

const paymentSystemSpecificBinaryFormat = paymentSystemSpecific.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const paymentSystemSpecificRawFormat = paymentSystemSpecific.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	PaymentSystemSpecific in TLV binary OR TLV raw data format

setGloballyUniqueIdentifier

const value = "15600000000";

paymentSystemSpecific.setGloballyUniqueIdentifier(value);

Parameters	Description	Type
`value`	Some value	string

addPaymentSystemSpecific

const id = "03";
const value = "12345678";

paymentSystemSpecific.addPaymentSystemSpecific(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

AdditionalDataFieldTemplate

Represents an additional data field template.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const additionalDataFieldTemplate = Merchant.buildAdditionalDataFieldTemplate();

Methods

toString

const additionalDataFieldTemplateStringFormat = additionalDataFieldTemplate.toString();

Return Type	Description
`string`	AdditionalDataFieldTemplate in TLV string format

dataWithType

const additionalDataFieldTemplateBinaryFormat = additionalDataFieldTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const additionalDataFieldTemplateRawFormat = additionalDataFieldTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	AdditionalDataFieldTemplate in TLV binary OR TLV raw data format

setBillNumber

const value = "34250";

additionalDataFieldTemplate.setBillNumber(value);

Parameters	Description	Type
`value`	Some value	string

setMobileNumber

const value = "+5561991112222";

additionalDataFieldTemplate.setMobileNumber(value);

Parameters	Description	Type
`value`	Some value	string

setStoreLabel

const value = "1234";

additionalDataFieldTemplate.setStoreLabel(value);

Parameters	Description	Type
`value`	Some value	string

setLoyaltyNumber

const value = "12345";

additionalDataFieldTemplate.setLoyaltyNumber(value);

Parameters	Description	Type
`value`	Some value	string

setReferenceLabel

const value = "example";

additionalDataFieldTemplate.setReferenceLabel(value);

Parameters	Description	Type
`value`	Some value	string

setCustomerLabel

const value = "***";

additionalDataFieldTemplate.setCustomerLabel(value);

Parameters	Description	Type
`value`	Some value	string

setTerminalLabel

const value = "A6008667";

additionalDataFieldTemplate.setTerminalLabel(value);

Parameters	Description	Type
`value`	Some value	string

setPurposeTransaction

const value = "Some purpose";

additionalDataFieldTemplate.setPurposeTransaction(value);

Parameters	Description	Type
`value`	Some value	string

setAdditionalConsumerDataRequest

const value = "ME";

additionalDataFieldTemplate.setAdditionalConsumerDataRequest(value);

Parameters	Description	Type
`value`	Some value	string

addRFUforEMVCo

const id = "03";
const value = "12345678";

additionalDataFieldTemplate.addRFUforEMVCo(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

addPaymentSystemSpecific

const id = "03";
const value = Merchant.buildPaymentSystemSpecific();
value.setGloballyUniqueIdentifier("15600000000");
value.addPaymentSystemSpecific("03", "12345678");

additionalDataFieldTemplate.addPaymentSystemSpecific(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

EMVQR

Represents an EMV QRCode.

const { Merchant } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const emvqr = Merchant.buildEMVQR();

Methods

generatePayload

const emvqrStringFormat = emvqr.generatePayload();

Return Type	Description
`string`	EMV QRCode payload in string format.

dataWithType

const emvqrBinaryFormat = emvqr.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const emvqrRawFormat = emvqr.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	EMV QRCode in binary OR raw data format

toBinary

const emvqrBinaryFormat = emvqr.toBinary(); // Binary Data (shown as hex bytes)

Return Type	Description
`string`	EMV QRCode in binary format

rawData

const emvqrBinaryFormat = emvqr.rawData(); // Raw Data

Return Type	Description
`string`	EMV QRCode in raw data format

validate

const isValid = emvqr.validate();

Return Type	Description
`boolean`	True if required properties is valid otherwise throw an Error

setPayloadFormatIndicator

const value = "01";

emvqr.setPayloadFormatIndicator(value);

Parameters	Description	Type
`value`	Some value	string

setPointOfInitiationMethod

const value = "00";

emvqr.setPointOfInitiationMethod(value);

Parameters	Description	Type
`value`	Some value	string

setMerchantCategoryCode

const value = "Technology";

emvqr.setMerchantCategoryCode(value);

Parameters	Description	Type
`value`	Some value	string

setTransactionCurrency

const value = "BRL";

emvqr.setTransactionCurrency(value);

Parameters	Description	Type
`value`	Some value	string

setTransactionAmount

const value = "20.5";

emvqr.setTransactionAmount(value);

Parameters	Description	Type
`value`	Some value	string

setTipOrConvenienceIndicator

const value = "2";

emvqr.setTipOrConvenienceIndicator(value);

Parameters	Description	Type
`value`	Some value	string

setValueOfConvenienceFeeFixed

const value = "2.00";

emvqr.setValueOfConvenienceFeeFixed(value);

Parameters	Description	Type
`value`	Some value	string

setValueOfConvenienceFeePercentage

const value = "0.90";

emvqr.setValueOfConvenienceFeePercentage(value);

Parameters	Description	Type
`value`	Some value	string

setCountryCode

const value = "55";

emvqr.setCountryCode(value);

Parameters	Description	Type
`value`	Some value	string

setMerchantName

const value = "Merchant Organization";

emvqr.setMerchantName(value);

Parameters	Description	Type
`value`	Some value	string

setMerchantCity

const value = "Brasilia";

emvqr.setMerchantCity(value);

Parameters	Description	Type
`value`	Some value	string

setPostalCode

const value = "71715-000";

emvqr.setPostalCode(value);

Parameters	Description	Type
`value`	Some value	string

setCRC

const value = "AF35";

emvqr.setCRC(value);

Parameters	Description	Type
`value`	Some value	string

setAdditionalDataFieldTemplate

const additionalDataFieldTemplate = Merchant.buildAdditionalDataFieldTemplate();
additionalDataFieldTemplate.setStoreLabel("1234");
additionalDataFieldTemplate.setCustomerLabel("***");
additionalDataFieldTemplate.setTerminalLabel("A6008667");
additionalDataFieldTemplate.setAdditionalConsumerDataRequest("ME");

emvqr.setAdditionalDataFieldTemplate(additionalDataFieldTemplate);

Parameters	Description	Type
`additionalDataFieldTemplate`	Some additional data field template	AdditionalDataFieldTemplate

setMerchantInformationLanguageTemplate

let merchantInformationLanguageTemplate = Merchant.buildMerchantInformationLanguageTemplate();
merchantInformationLanguageTemplate.setLanguagePreference("PT");
merchantInformationLanguageTemplate.setMerchantName("Merchant Organization");
merchantInformationLanguageTemplate.setMerchantCity("Brasilia");
emvqr.setMerchantInformationLanguageTemplate(merchantInformationLanguageTemplate);

Parameters	Description	Type
`merchantInformationLanguageTemplate`	Some merchant information language template	MerchantInformationLanguageTemplate

addMerchantAccountInformation

const id = "27";

const merchantAccountInformation = Merchant.buildMerchantAccountInformation();
merchantAccountInformation.setGloballyUniqueIdentifier("com.p2pqrpay");
merchantAccountInformation.addPaymentNetworkSpecific("01", "PAPHPHM1XXX");
merchantAccountInformation.addPaymentNetworkSpecific("02", "99964403");
merchantAccountInformation.addPaymentNetworkSpecific("04", "09985903943");
merchantAccountInformation.addPaymentNetworkSpecific("05", "+639985903943");

emvqr.addMerchantAccountInformation(id, merchantAccountInformation);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some merchant account information	string

addUnreservedTemplates

const id = "80";

const unreservedTemplate = Merchant.buildUnreservedTemplate();
unreservedTemplate.setGloballyUniqueIdentifier("A011223344998877");
unreservedTemplate.addContextSpecificData("07", "12345678");

emvqr.addUnreservedTemplates(id, unreservedTemplate);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some unreserved template	string

addRFUforEMVCo

const id = "03";
const value = "12345678";

emvqr.addRFUforEMVCo(id, value);

Parameters	Description	Type
`id`	Tag ID	string
`value`	Some value	string

Consumer Module

You can use this Module by importing:

const { Consumer } = require('steplix-emv-qrcps')

Methods

buildBERTLV

const berTLV = Consumer.buildBERTLV();

// ... OR

const berTLV = Consumer.buildBERTLV(
    dataApplicationDefinitionFileName,
    dataApplicationLabel,
    dataTrack2EquivalentData,
    dataApplicationPAN,
    dataCardholderName,
    dataLanguagePreference,
    dataIssuerURL,
    dataApplicationVersionNumber,
    dataIssuerApplicationData,
    dataTokenRequestorID,
    dataPaymentAccountReference,
    dataLast4DigitsOfPAN,
    dataApplicationCryptogram,
    dataApplicationTransactionCounter,
    dataUnpredictableNumber
);

Parameter	Description	Type
`dataApplicationDefinitionFileName`	Application Definition Name	string(in-hex-decimal-format)
`dataApplicationLabel`	Application Label	string
`dataTrack2EquivalentData`	Track to equivalent data	string(in-hex-decimal-format)
`dataApplicationPAN`	Application PAN	string(in-hex-decimal-format)
`dataCardholderName`	Cardholder Name	string
`dataLanguagePreference`	Language Preference	string
`dataIssuerURL`	Issuer URL	string
`dataApplicationVersionNumber`	Application Version Number	string(in-hex-decimal-format)
`dataIssuerApplicationData`	Issuer Application Data	string(in-hex-decimal-format)
`dataTokenRequestorID`	Token Requestor ID	string(in-hex-decimal-format)
`dataPaymentAccountReference`	Payment Account Reference	string(in-hex-decimal-format)
`dataLast4DigitsOfPAN`	Last 4 digits of PAN	string(in-hex-decimal-format)
`dataApplicationCryptogram`	Application Cryptogram	string(in-hex-decimal-format)
`dataApplicationTransactionCounter`	Application Transaction Counter	string(in-hex-decimal-format)
`dataUnpredictableNumber`	Unpredictable Number	string(in-hex-decimal-format)

Return Type	Description
`BERTLV`	It means the TLV Object of the consumer module.

buildApplicationSpecificTransparentTemplate

const applicationSpecificTransparentTemplate = Consumer.buildApplicationSpecificTransparentTemplate();

// ... OR

const applicationSpecificTransparentTemplate = Consumer.buildApplicationSpecificTransparentTemplate(
	berTLV = BERTLV()
);

Parameter	Description	Type
`berTLV`	BERTLV Object	BERTLV

Return Type	Description
`ApplicationSpecificTransparentTemplate`	It means an object that stores an application specific transparent template.

buildApplicationTemplate

const applicationTemplate = Consumer.buildApplicationTemplate();

// ... OR

const applicationTemplate = Consumer.buildApplicationTemplate(
	berTLV = BERTLV(),
	applicationSpecificTransparentTemplates = []
);

Parameter	Description	Type
`berTLV`	BERTLV Object	BERTLV
`applicationSpecificTransparentTemplates`	Application specific transparent templates	array (ApplicationSpecificTransparentTemplate)

Return Type	Description
`ApplicationTemplate`	It means an object that stores an application template.

buildCommonDataTransparentTemplate

const commonDataTransparentTemplate = Consumer.buildCommonDataTransparentTemplate();

// ... OR

const commonDataTransparentTemplate = Consumer.buildCommonDataTransparentTemplate(
    berTLV = BERTLV()
);

Parameter	Description	Type
`berTLV`	BERTLV Object	BERTLV

Return Type	Description
`CommonDataTransparentTemplate`	It means an object that stores a common data transparent template.

buildCommonDataTemplate

const commonDataTemplate = Consumer.buildCommonDataTemplate();

// ... OR

const commonDataTemplate = Consumer.buildCommonDataTemplate(
    berTLV = BERTLV(),
	commonDataTransparentTemplates = [] 
);

Parameter	Description	Type
`berTLV`	BERTLV Object	BERTLV
`commonDataTransparentTemplates`	Common data transparent templates	array (CommonDataTransparentTemplate)

Return Type	Description
`CommonDataTemplate`	It means an object that stores a common data template.

buildEMVQR

const EMVQR = Consumer.buildEMVQR();

// ... OR

const EMVQR = Consumer.buildEMVQR(
    dataPayloadFormatIndicator,
    applicationTemplates,
    commonDataTemplates
);

Parameter	Description	Type
`dataPayloadFormatIndicator`	Payload Format Indicator	string
`applicationTemplates`	Application Templates	array [ ApplicationTemplate ]
`commonDataTemplates`	Common Data templates	array [ CommonDataTemplate ]

Return Type	Description
`EMVQR`	It means an object that represents an EMV QRCode.

Object Types

BERTLV

Represents a Basic Encoding Rules TAG + Length + Value.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Merchant;

const berTLV = Merchant.buildBERTLV();

Methods

setDataApplicationDefinitionFileName

berTLV.setDataApplicationDefinitionFileName("A0000000555555");

Parameters	Description	Type
`dataApplicationDefinitionFileName`	Application Definition File (ADF) Name	string(in-hex-decimal-format)

setDataApplicationLabel

berTLV.setDataApplicationLabel("Product1");

Parameters	Description	Type
`setDataApplicationLabel`	Application Label	string

setDataTrack2EquivalentData

berTLV.setDataTrack2EquivalentData("AABBCCDD");

Parameters	Description	Type
`dataTrack2EquivalentData`	Track 2 Equivalent Data	string(in-hex-decimal-format)

setDataApplicationPAN

berTLV.setDataApplicationPAN("1234567890123458");

Parameters	Description	Type
`dataApplicationPAN`	Application PAN	string(in-hex-decimal-format)

setDataCardholderName

berTLV.setDataCardholderName("CARDHOLDER/EMV");

Parameters	Description	Type
`dataCardholderName`	Cardholder Name	string

setDataLanguagePreference

berTLV.setDataLanguagePreference("ruesdeen");

Parameters	Description	Type
`dataLanguagePreference`	Language Preference	string

setDataIssuerURL

berTLV.setDataIssuerURL("http://someuri.com");

Parameters	Description	Type
`dataIssuerURL`	Issuer URL	string

setDataApplicationVersionNumber

berTLV.setDataApplicationVersionNumber("04");

Parameters	Description	Type
`dataApplicationVersionNumber`	Application Version Number	string(in-hex-decimal-format)

setDataIssuerApplicationData

berTLV.setDataIssuerApplicationData("06010A03000000");

Parameters	Description	Type
`dataIssuerApplicationData`	Issuer application data	string(in-hex-decimal-format)

setDataTokenRequestorID

berTLV.setDataTokenRequestorID("0601AABBCC");

Parameters	Description	Type
`dataTokenRequestorID`	Token Requestor ID	string(in-hex-decimal-format)

setDataPaymentAccountReference

berTLV.setDataPaymentAccountReference("0708AABBCCDD");

Parameters	Description	Type
`dataPaymentAccountReference`	Payment Account Reference	string(in-hex-decimal-format)

setDataLast4DigitsOfPAN

berTLV.setDataLast4DigitsOfPAN("07080201");

Parameters	Description	Type
`dataLast4DigitsOfPAN`	Last 4 Digits of PAN	string(in-hex-decimal-format)

setDataApplicationCryptogram

berTLV.setDataApplicationCryptogram("584FD385FA234BCC");

Parameters	Description	Type
`dataApplicationCryptogram`	Application Cryptogram	string(in-hex-decimal-format)

setDataApplicationTransactionCounter

berTLV.setDataApplicationTransactionCounter("0001");

Parameters	Description	Type
`dataApplicationTransactionCounter`	Application Transaction Counter	string(in-hex-decimal-format)

setDataUnpredictableNumber

berTLV.setDataUnpredictableNumber("6D58EF13");

Parameters	Description	Type
`dataUnpredictableNumber`	Unpredictable Number	string(in-hex-decimal-format)

format

berTLV.format();

Return Type	Description
`string`	BERTLV in string format

dataWithType

const berTlvBinaryFormat = berTLV.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const berTlvRawFormat = berTLV.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	BERTLV in binary OR raw data format

ApplicationSpecificTransparentTemplate

Represents an application specific transparent template.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Consumer;

const applicationSpecificTransparentTemplate = Consumer.buildApplicationSpecificTransparentTemplate();

Methods

setBERTLV

const berTLV = Consumer.buildBERTLV();

// Setters assignments in berTLV

applicationSpecificTransparentTemplate.setBERTLV(berTLV);

Parameters	Description	Type
`berTLV`	BERTLV Object	BERTLV

format

applicationSpecificTransparentTemplate.format();

Return Type	Description
`string`	ApplicationSpecificTransparentTemplate in string format

dataWithType

const binaryFormat = applicationSpecificTransparentTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const rawFormat = applicationSpecificTransparentTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	Application specific transparent template in binary OR raw data format

CommonDataTransparentTemplate

Represents a common data transparent template.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Consumer;

const commonDataTransparentTemplate = Consumer.buildCommonDataTransparentTemplate();

Methods

setBERTLV

const berTLV = Consumer.buildBERTLV();

// Setters assignments in berTLV

commonDataTransparentTemplate.setBERTLV(berTLV);

Parameters	Description	Type
`berTLV`	BERTLV Object	BERTLV

format

commonDataTransparentTemplate.format();

Return Type	Description
`string`	CommonDataTransparentTemplate in string format

dataWithType

const binaryFormat = commonDataTransparentTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const rawFormat = commonDataTransparentTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	Common data transparent template in binary OR raw data format

ApplicationTemplate

Represents an application template.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Consumer;

const applicationTemplate = Consumer.buildApplicationTemplate();

Methods

setBERTLV

const berTLV = Consumer.buildBERTLV();

// Setters assignments in berTLV

applicationTemplate.setBERTLV(berTLV);

Parameters	Description	Type
`berTLV`	BERTLV Object	BERTLV

addApplicationSpecificTransparentTemplate

const applicationSpecificTransparentTemplate = Consumer.buildApplicationSpecificTransparentTemplate();

const berTLV1 = Consumer.buildBERTLV();
berTLV1.setDataApplicationDefinitionFileName("A0000000555555");
berTLV1.setDataApplicationLabel("Product1");
applicationSpecificTransparentTemplate.setBERTLV(berTLV1);

applicationTemplate.addApplicationSpecificTransparentTemplate(applicationSpecificTransparentTemplate);

Parameters	Description	Type
`applicationSpecificTransparentTemplate`	An application specific transparent template	ApplicationSpecificTransparentTemplate

format

applicationTemplate.format();

Return Type	Description
`string`	ApplicationTemplate in string format

dataWithType

const binaryFormat = applicationTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const rawFormat = applicationTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	Common data transparent template in binary OR raw data format

CommonDataTemplate

Represents a common data template.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Consumer;

const commonDataTemplate = Consumer.buildCommonDataTemplate();

Methods

setBERTLV

const berTLV = Consumer.buildBERTLV();

// Setters assignments in berTLV

commonDataTemplate.setBERTLV(berTLV);

Parameters	Description	Type
`berTLV`	BERTLV Object	BERTLV

addCommonDataTransparentTemplate

const commonDataTransparentTemplate = Consumer.buildCommonDataTransparentTemplate();

const berTLV = Consumer.buildBERTLV();
berTLV.setDataIssuerApplicationData("06010A03000000");
berTLV.setDataApplicationCryptogram("584FD385FA234BCC");
berTLV.setDataApplicationTransactionCounter("0001");
berTLV.setDataUnpredictableNumber("6D58EF13");
commonDataTransparentTemplate.setBERTLV(berTLV);

commonDataTemplate.addCommonDataTransparentTemplate(commonDataTransparentTemplate);

Parameters	Description	Type
`commonDataTransparentTemplate`	A common data transparent template	CommonDataTransparentTemplate

format

commonDataTemplate.format();

Return Type	Description
`string`	CommonDataTemplate in string format

dataWithType

const binaryFormat = commonDataTemplate.dataWithType(Constants.DATA_TYPE.BINARY, ' '); // Binary Data (shown as hex bytes)

// OR

const rawFormat = commonDataTemplate.dataWithType(Constants.DATA_TYPE.RAW, ' '); // Raw Data

Parameters	Description	Type
`dataType`	Data type value	Constants.DATA_TYPE.`BINARY` \| Constants.DATA_TYPE.`RAW`
`indent`	Indent character (Ex.: ' ')	string

Return Type	Description
`string`	Common data transparent template in binary OR raw data format

EMVQR

Represents an EMV QRCode.

const { Consumer } = require('steplix-emv-qrcps');
const { Constants } = Consumer;

const emvqr = Consumer.buildEMVQR();

Methods

setDataPayloadFormatIndicator

emvqr.setDataPayloadFormatIndicator("CPV01");

Parameters	Description	Type
`dataPayloadFormatIndicator`	Payload Format Indicator	string

addApplicationTemplate

const applicationTemplate1 = Consumer.buildApplicationTemplate();
const berTLV1 = Consumer.buildBERTLV();
berTLV1.setDataApplicationDefinitionFileName("A0000000555555");
berTLV1.setDataApplicationLabel("Product1");
applicationTemplate1.setBERTLV(berTLV1);

emvqr.addApplicationTemplate(applicationTemplate1);

const applicationTemplate2 = Consumer.buildApplicationTemplate();
const berTLV2 = Consumer.buildBERTLV();
berTLV2.setDataApplicationDefinitionFileName("A0000000666666");
berTLV2.setDataApplicationLabel("Product2");
applicationTemplate2.setBERTLV(berTLV2);

emvqr.addApplicationTemplate(applicationTemplate2);

Parameters	Description	Type
`applicationTemplate`	An application template	ApplicationTemplate

addCommonDataTemplate

const commonDataTemplate = Consumer.buildCommonDataTemplate();

const berTLV1 = Consumer.buildBERTLV();
berTLV1.setDataApplicationPAN("1234567890123458");
berTLV1.setDataCardholderName("CARDHOLDER/EMV");
berTLV1.setDataLanguagePreference("ruesdeen");
commonDataTemplate.setBERTLV(berTLV1);

const commonDataTransparentTemplate = Consumer.buildCommonDataTransparentTemplate();

const berTLV2 = Consumer.buildBERTLV();
berTLV2.setDataIssuerApplicationData("06010A03000000");
berTLV2.setDataApplicationCryptogram("584FD385FA234BCC");
berTLV2.setDataApplicationTransactionCounter("0001");
berTLV2.setDataUnpredictableNumber("6D58EF13");
commonDataTransparentTemplate.setBERTLV(berTLV2);

commonDataTemplate.addCommonDataTransparentTemplate(commonDataTransparentTemplate);

emvqr.addCommonDataTemplate(commonDataTemplate);

Parameters	Description	Type
`commonDataTemplate`	A common data template	CommonDataTemplate

generatePayload

commonDataTemplate.generatePayload();

Return Type	Description
`string`	EMVQR in base64 string format

toBinary

const emvqrBinaryFormat = emvqr.toBinary(); // Binary Data (shown as hex bytes)

Return Type	Description
`string`	EMV QRCode in binary format

rawData

const emvqrBinaryFormat = emvqr.rawData(); // Raw Data

Return Type	Description
`string`	EMV QRCode in raw data format

Files

README.md

Latest commit

History

README.md

File metadata and controls

Installing

Modules

Merchant Module

Methods

buildTLV

buildEMVQR

buildAdditionalDataFieldTemplate

buildMerchantInformationLanguageTemplate

buildMerchantAccountInformation

buildUnreservedTemplate

Object Types

TLV

Methods

toString

dataWithType

MerchantAccountInformation

Methods

toString

dataWithType

setGloballyUniqueIdentifier

addPaymentNetworkSpecific

MerchantInformationLanguageTemplate

Methods

toString

dataWithType

validate

setLanguagePreference

setMerchantName

setMerchantCity

addRFUforEMVCo

UnreservedTemplate

Methods

toString

dataWithType

setGloballyUniqueIdentifier

addContextSpecificData

PaymentSystemSpecific

Methods

toString

dataWithType

setGloballyUniqueIdentifier

addPaymentSystemSpecific

AdditionalDataFieldTemplate

Methods

toString

dataWithType

setBillNumber

setMobileNumber

setStoreLabel

setLoyaltyNumber

setReferenceLabel

setCustomerLabel

setTerminalLabel

setPurposeTransaction

setAdditionalConsumerDataRequest

addRFUforEMVCo

addPaymentSystemSpecific

EMVQR

Methods

generatePayload

dataWithType

toBinary

rawData

validate

setPayloadFormatIndicator

setPointOfInitiationMethod

setMerchantCategoryCode

setTransactionCurrency

setTransactionAmount

setTipOrConvenienceIndicator

setValueOfConvenienceFeeFixed

setValueOfConvenienceFeePercentage

setCountryCode

setMerchantName