Contents

 


About giropay

General information about giropay

giropay is a standard founded by the German banks Sparkasse, Postbank, Volks- und Raiffeisen Banken. The giropay online transfer has a number of advantages for merchants. Firstly giropay provides the vendor with a guarantee for payments of up to 10,000 euros; secondly the transfer is a prepayment which minimises the payment term. Finally the customer is using the familiar and trusted online banking of its own credit institution, just the same as with online banking.

In the first step the customer chooses the giropay payment method at the checkout of the online shop and selects its credit institution. The customer is then connected directly to its Sparkasse/bank and logs on as normal using a PIN. A pre-completed transfer form then appears. The customer need only enter their TAN to confirm the payment.

With online banking, the data disclosed in the online transfer is encrypted with SSL (Secure Sockets Layer) to prevent manipulation.

giropay is an online bank transfer with PIN and TAN that provides you with access to nearly 40 million online banking users in Germany in Austria. Additionally to the full 100% payment guarantee the use of giropay is relatively low priced.

 

Further information can be found on the webpage of giropay (http://www.giropay.de).


Process flow chart

giropay process flow


Payment platform interface

Definitions

Data formats:

Format

Description

a

alphabetical

as

alphabetical with special characters

n

numeric

an

alphanumeric

ans

alphanumeric with special characters

ns

numeric with special characters

bool

boolean expression (true or false)

3

fixed length with 3 digits/characters

..3

variable length with maximum 3 digits/characters

enum

enumeration of allowed values

dttm

ISODateTime (YYYY-MM-DDThh:mm:ss)


Abbreviations:

Abbreviation

Description

CND

condition

M

mandatory

O

optional

C

conditional


Notice: Please note that the names of parameters can be returned in upper or lower case.


Calling the giropay interface

To initiate a payment with giropay, call up the following URL:

 

Notice: For security reasons, Payment platform rejects all payment requests with formatting errors. Therefore please use the correct data type for each parameter.

Notice: Please observe that a connection via iFrame is not possible due to existing regulations and will be technically prevented.

The following table describes the encrypted payment request parameters:

Parameter

Format

CND

Description

MerchantID

ans..30

M

ID of merchant. Additionally this parameter has to be passed in plain language too.

TransID

ans..64

M

TransactionID which should be unique for each payment

RefNr

ans..40

OC

Merchant's unique reference number. Only characters a-zA-Z0-9,-_ are allowed.

Amount

n..10

M

Amount in the smallest currency unit (e.g. EUR Cent)

Please contact the helpdesk, if you want to capture amounts < 100 (smallest currency unit).

Currency

a3

M

Currency, three digits DIN / ISO 4217

OrderDesc

ans..384

M

Description of purchased goods, unit prices etc.

Please note: The first 27 characters appear on the customer-account statement. You can view the full data in Analytics.

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm

UserData

ans..1024

O

If specified at request, Payment platform forwards the parameter with the payment result to the shop

URLSuccess

ans..256

M

Complete URL which calls up Payment platform if payment has been successful. The URL may be called up only via port 443 This URL may not contain parameters: In order to exchange values between Payment platform and shop, please use the parameter UserData.

URLFailure

ans..256

M

Complete URL which calls up Payment platform if payment has been unsuccessful. The URL may be called up only via port 443 This URL may not contain parameters: In order to exchange values between Payment platform and shop, please use the parameter UserData.

Response

a7

O

Status response sent by Payment platform to URLSuccess and URLFailure, should be encrypted. For this purpose, transmit Response=encrypt parameter.

URLNotify

ans..256

O

Complete URL which Payment platform calls up in order to notify the shop about the payment result. The URL may be called up only via port 443 It may not contain parameters: Use the UserData parameter instead.

ReqID

ans..32

O

To avoid double payments, enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction is submitted again with the same ReqID, the payment platform will not carry out the payment, but will just return the status of the original transaction. Please note that the payment platform must have a finalized transaction status for the first initial action. Submissions with identical ReqID for an open status will be processed regularly.

SellingPoint

ans..50

O

Selling point

Service

ans..50

O

Products or service sold

Channel

ans..64

O

Configuration channel of the PPRO contract (account and ContractID are stored in the system). If it exists, it may overwrite channels stored in the system.

Languagea2O2-letter language code (e.g.. de) that should be preferred when presenting payment pages to the consumer

AccOwner

a..50

O

Name of the card holder in the format
<first name><space><last name><space>

Scheme

enum

O

Defines the scheme: „gir“ or „eps“

BIC

ans..11

O

Bank Identifier Code

Plain

ans..50

O

A value to be set by the merchant to return some information unencrypted, e.g. the MID

Custom

ans..1024

O

The merchant can submit several values separated by | which are returned unencrypted and separated by &.

Custom=session=123|id=456 will change in the answer to Session=123&id=456

expirationTime

ans..19

O

timestamp for the end time of the transaction processing, specified in UTC.

Format: YYYY-MM-ddTHH:mm:ss

Parameters for online transfers with giropay


The following table gives the result parameters which the Payment platform transmits to URLSuccess or URLFailure and URLNotify. If you have specified the Response=encrypt parameter, the following parameters are forwarded Blowfish encrypted to your system:

Parameter

Format

CND

Description

MID

ans..30

M

ID of merchant

PayID

an32

M

ID assigned by Payment platform for the payment, e.g. for referencing in batch files

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Payment platform

TransID

ans..64

M

Merchant’s transaction number

Status

a..50

M

OK (URLSuccess) or FAILED (URLFailure)

Description

ans..1024

M

Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis!

Code

n8

M

Error code according to Payment platform Response Codes Excel file

RefNr

ans..40

O

Merchant’s unique reference number. Only characters a-zA-Z0-9,-_ are allowed.

UserData

ans..1024

O

If specified at request, Payment platformforwards the parameter with the payment result to the shop

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm

PaymentPurpose

ans..26

O

Purpose of payment

PaymentGuarantee

a..12

O

NONE= no payment guarantee,

VALIDATED= customer account valid, but no payment guarantee, FULL= payment guarantee

Notice: This parameter is only returned if the Status=OK.

ErrorText

ans..128

O

Detailed PPRO error message.

Notice: Is returned only if Status=FAILED. Use is possible only in agreement with support.

TransactionID

an..20

O

Unique transaction number from PPRO

Plain

ans..50

O

A value to be set by the merchant to return some information unencrypted, e.g. the MID

Custom

ans..1024

O

The merchant can submit several values separated by | which are returned unencrypted and separated by &.

Custom=session=123|id=456 will change in the answer to Session=123&id=456

Result parameters for URLNotify, URLSuccess and URLFailure in case of giropay


Verification of the online status of giropay banks

With Payment platform merchants can check which banks are online before processing the payment and thereby enable the giropay payment. For this verification call up the following URL:

 

The following table describes the encrypted payment request parameters:

Parameter

Format

CND

Description

MerchantID

ans..30

M

ID of merchant. Additionally this parameter has to be passed in plain language too.

Table: Parameters for verification of the online status of giropay banks


Please transfer the Merchant-ID both in the unencrypted as well as the encrypted string.


The following table describes the result parameters, which Payment platform sends in response:

Parameter

Format

CND

Description

MerchantID

ans..30

M

ID of merchant. Additionally this parameter has to be passed in plain language too.

BICList

ans..

M

The BICList parameter contains all banks which are online at the time of the inquiry as comma-separated values.

Example: BICList=TESTBIC1,TESTBIC2,…

Table: Result parameters for requesting the giropay banks



Credit with reference

Credits (refunds) are possible via a Server-to-Server connection. The Payment platform permits only credits for giropay that reference a previously made transaction via Payment platform. The amount of the Credit is limited to the amount of the previous capture.

To carry out a credit with a reference transaction, please use the following URL:

 

Notice: For security reasons, Payment platform rejects all payment requests with formatting errors. Therefore please use the correct data type for each parameter.

The following table describes the encrypted payment request parameters:

Parameter

Format

CND

Description

MerchantID

ans..30

M

ID of merchant. Additionally this parameter has to be passed in plain language too.

PayID

an32

M

ID assigned by Payment platform for the payment to be credited

TransID

ans..64

M

TransactionID which should be unique for each payment

MAC

an64

M

Hash Message Authentication Code (HMAC) with SHA-256 algorithm

Amount

n..10

M

Amount in the smallest currency unit (e.g. EUR Cent)

Please contact the helpdesk, if you want to capture amounts < 100 (smallest currency unit).

Currency

a..3

M

Currency code, three digits DIN / ISO 4217

OrderDesc

ans..768

OC

Description of refunded goods, unit prices, merchant’s comment etc.

ReqIDans.32OTo avoid double payments, enter an alphanumeric value which identifies your transaction and may be assigned only once. If the transaction is submitted again with the same ReqID, the payment platform will not carry out the payment, but will just return the status of the original transaction. Please note that the payment platform must have a finalized transaction status for the first initial action. Submissions with identical ReqID for an open status will be processed regularly.

Parameters for credits of giropay payments

 

The following table describes the Payment platform response parameters:

Parameter

Format

CND

Description

MID

ans..30

C

ID of merchant

PayID

an32

M

ID assigned by Payment platform for the payment, e.g. for referencing in batch files

XID

an32

M

ID for all single transactions (authorisation, capture, credit note) for one payment assigned by Payment platform

TransID

ans..64

M

Merchant’s transaction number

Status

a..30

M

OK or FAILED or AUTHORIZE_REQUEST

Description

ans..1024

M

Further details in the event that payment is rejected. Please do not use the Description but the Code parameter for the transaction status analysis!

Code

n8

M

Error code according to Payment platform Response Codes Excel file

RefNr

ans..40

O

Merchant’s unique reference number. Only characters a-zA-Z0-9,-_ are allowed.

ErrorText

ans..128

O

Detailed PPRO error message

Notice: Is returned only if Status=FAILED. Use is possible only in agreement with support.

Result parameters for credits of giropay payments


Batch processing via the interface

Information about using Batch files and their structure can be found in the Batch Manager manual. Within batch processing not alle functions are available which are usually available for the online interface.

This section describes the parameters which must be transferred within the data set (Record) for executing a giropay payment and which information can be found within the response file about the payment status.

Following table gives an overview of all batch versions that are possible for a specific action an their specialities:

Action

Version

Description

Credit

1.0 / 2.0

Standard version without return of parameter Code

 

1.x / 2.x

with RefNr (valid for all versions other than 1.0)

Description of the possible batch versions


The structure for a giropay payment within a Batch file to be submitted is the following:

HEAD,<MerchantID>,<Date>,<Version>

GIROPAY,Credit,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>

FOOT,<CountRecords>,<SumAmount>


Example for Master MID Funktion:

HEAD,[Master]MerchantID,Date,2.x
Type,Action,[Slave]MID,Amount,Currency,TransID,Data (depends on Action)
FOOT,CountRecords,SumAmount


The following table describes the individual fields and values used within the data set (record) within the batch file:

Parameter

Format

CND

Description

Type

a..11

M

HEAD for Header, FOOT for Footer, GIROPAY for giropay

Action

a..20

M

The parameter Action defines the type of transaction:

Credit

Amount

n..10

M

Amount in the smallest currency unit (e.g. EUR Cent)

Please contact the helpdesk, if you want to capture amounts < 100 (smallest currency unit).

Currency

a3

M

Currency code, three digits DIN / ISO 4217

TransID

ans..64

M

TransactionID which should be unique for each payment

RefNr

ans..40

O

Merchant's unique reference number. Only characters a-zA-Z0-9,-_ are allowed.

PayID

an32

M

ID for this transaction given by Payment platform

Description of fields within the record for Batch files

 

The record area within the response file for Batch transactions looks the following way:

HEAD,<MerchantID>,<Date>,<Version>

GIROPAY,Credit,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>,<Status>,<Code>

FOOT,<CountRecords>,<SumAmount>

 

The following table describes the response parameters which the Batch Manager saves in the Record area for each transaction (standard parameters not explained here, such as <TransID> or <RefNR> and request parameters are returned unchanged and correspond to the call as specified in):

Parameter

Format

CND

Description

Action

a..20

M

The parameter Action defines the type of transaction: Credit

PayID

an32

M

ID for this transaction given by Payment platform

Status

a..50

M

OK or FAILED

Code

n8

M

Error code according to Payment platform Response Codes Excel file

Description of result parameters within the record for Batch files

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