FDMSReversal Component

Properties   Methods   Events   Config Settings   Errors  

The FDMSREVERSAL component is used to reverse a transaction that was previously authorized using the FDMSRETAIL , FDMSECOMMERCE , or FDMSHEALTHCARE component. This immediately releases the funds in the cardholder's open-to-buy that were blocked by the original authorization.

Syntax

TibcFDMSReversal

Remarks

Unlike the Timeout Reversals used in the FDMSDebit and FDMSBenefit components, a credit card reversal is used to void a transaction and return funds to the customer. Often this is used in a split-tender situation, where a customer uses a prepaid Visa or MasterCard (or health care FSA card) to make a purchase which is partially authorized for less than the transaction amount. Partially authorized transactions will have an ApprovalCode that beings with "AL" instead of "AP". If the customer does not have an additional source of funds to make up the difference, the authorization must be reversed and the funds immediately returned to the customer's card. To do this, set the AuthorizedAmount to the Response.AuthorizedAmount from the original transaction, and set the SettlementAmount to "0". This is called a full reversal (in this case, of a partially authorized transaction), and the detail record for the original transaction should be discarded - it must not be settled at the end of the day.

Alternatively, a merchant may need to settle a transaction amount for less than was originally authorized. In this case, set the AuthorizedAmount to the original TransactionAmount, and set the SettlementAmount to the new amount you wish to settle for. After a successful reversal, use the FDMSDetailRecord component to update the SettlementAmount of the detail record for the original transaction with the new amount. This is called a partial reversal. You may also submit a full reversal by setting the SettlementAmount to "0". In that case, all of the funds are returned to the customer and the detail record for the original transaction should be discarded.

Note that partial authorizations must be fully reversed. You cannot partially reverse a partial authorization. Normally authorized transactions can be either partially or fully reversed. A normal authorization has a ApprovalCode that begins with "AP" (APproved). A partial authorization has a ApprovalCode that begins with "AL" (Approved for a Lesser amount).

Upon a successful reversal, the ApprovalCode property will contain either "AP888888" or "AP868686" indicating the reversal was accepted. This code does not indicate the original transaction was found and reversed, merely that the reversal was received and properly formatted. First Data does not actually check whether the original transaction occurred or not. If the transaction was declined ApprovalCode will contain one of the response messages listed in the table below:

Note that partially authorized transactions cannot be partially reversed, they must be fully reversed. For instance, say a customer uses a prepaid visa card to buy $100 worth of merchandise, but his card only has a $50 balance. If the customer does not have an additional form of tender, (cash, check, credit, etc), the $50 that was partially authorized must be reversed and returned to the card. First Data does not support any scenario where a partially authorized transaction may be reversed for less than the full amount.

To reiterate, when a transaction is fully reversed, it must be removed from the batch settlement entirely. A partially reversed transaction must update the SettlementAmount of the original detail record, using the FDMSDetailRecord component. Reversal transactions themselves may not be settled, even if the CaptureFlag is True.

Important Note: You must ping your list of service provider URLs and update the URL property to the service provider with the shortest response time every 100 transactions, as well as when your application initially starts. This is not a normal ICMP ping - to determine the fastest transaction URL you must use the special Ping method inside the FDMSRegister component. (You may update your list of service provider URLs with the FDMSRegister component's ServiceDiscovery method).

Property List

The following is the full list of the properties of the component with short descriptions. Click on the links for further details.

Method List

The following is the full list of the methods of the component with short descriptions. Click on the links for further details.

Event List

The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.

Config Settings

The following is a list of config settings for the component with short descriptions. Click on the links for further details.

ApplicationId Property (FDMSReversal Component)

Identifies the merchant application to the Datawire System.

Syntax

property ApplicationId: String read get_ApplicationId write set_ApplicationId;

Default Value

'NSOFTDIRECTPXML'

Remarks

The Application ID includes the Merchant's application name and version number. This property is used to identify the merchant application within the Datawire system, and may be validated along with the MerchantTerminalNumber and DatawireId as connection credentials.

The default value of this property is assigned to the 4D Payments FDMS Integrator, but you may be required to have a new ApplicationId assigned for the software you create with this component.

ApprovalCode Property (FDMSReversal Component)

Approval code of the transaction to be reversed.

Syntax

property ApprovalCode: String read get_ApprovalCode write set_ApprovalCode;

Default Value

''

Remarks

This property should be set with the Response.ApprovalCode from the transaction you wish to reverse.

AuthorizedAmount Property (FDMSReversal Component)

Authorized Amount from the original response.

Syntax

property AuthorizedAmount: String read get_AuthorizedAmount write set_AuthorizedAmount;

Default Value

''

Remarks

This property should be set with the actual authorized amount from the transaction you wish to reverse. If the transaction was partially authorized (Response.AuthorizedAmount was present in the response, and different than the original TransactionAmount), then this property should be set to the AuthorizedAmount returned in the original response. Otherwise it should be set to the original TransactionAmount.

If the original transaction was partially authorized, you cannot do a partial reversal. Partially authorized transactions must be fully reversed (meaning SettlementAmount must be set to "0").

In the case of reversing a transaction containing incremental authorizations, this property should be set to the first (initial) authorization amount. The TotalAuthorizedAmount config should then be set to the total authorization amount (first authorization plus all incremental authorizations).

Card Property (FDMSReversal Component)

Contains the customer's credit card information.

Syntax

property Card: TibcCCCard read get_Card write set_Card;

Remarks

This must be set to an instance of the CCCard type, which will contain information about the credit card to be charged. This may include a MagneticStripe for swiped cards, or a Number, ExpMonth, and ExpYear for manually entered cards. (EntryDataSource indicates which set of properties will be used). See the CCCard type for more information.

This property is not available at design time.

DatawireId Property (FDMSReversal Component)

Identifies the merchant to the Datawire System.

Syntax

property DatawireId: String read get_DatawireId write set_DatawireId;

Default Value

''

Remarks

The Datawire Id is a unique customer identifier generated by Datawire and returned to the client after successfully registering the merchant (using the FDMSRegister component). This Id (which is sent in all subsequent transactions) allows a transaction, to pass through the Datawire system and be correctly routed to the FDMS Payment processor.

The maximum length for this property is 32 characters.

DirectMarketingType Property (FDMSReversal Component)

Specifies the type of direct marketing transaction to reverse.

Syntax

property DirectMarketingType: TibcFDMSDirectMarketingTypes read get_DirectMarketingType write set_DirectMarketingType;

TibcFDMSDirectMarketingTypes = (
  dmECommerce,
  dmMOTO,
  dmRecurring,
  dmInstallment
);

Default Value

dmECommerce

Remarks

The following types of direct marketing transactions are reversable by this component:

FDMSPlatform Property (FDMSReversal Component)

Specifies the FDMS platform that the transactions will be processed on.

Syntax

property FDMSPlatform: TibcFDMSPlatforms read get_FDMSPlatform write set_FDMSPlatform;

TibcFDMSPlatforms = (
  fpNorth,
  fpNashville
);

Default Value

fpNorth

Remarks

This property is used to identify the FDMS platform that the transactions will be sent to and processed on. The following table lists the platforms supported by this component.

HealthCare Property (FDMSReversal Component)

Indicates whether this is a healthcare auto-substantiation reversal.

Syntax

property HealthCare: Boolean read get_HealthCare write set_HealthCare;

Default Value

false

Remarks

Set this property to True in order to reverse FSA transactions made with the FDMSHealthCare component.

IndustryType Property (FDMSReversal Component)

Code which indicates the industry the merchant is engaged in.

Syntax

property IndustryType: TibcFDMSIndustryTypes read get_IndustryType write set_IndustryType;

TibcFDMSIndustryTypes = (
  fitUnknown,
  fitRetail,
  fitRestaurant,
  fitGroceryStore,
  fitDirectMarketing,
  fitHotel
);

Default Value

fitRetail

Remarks

This property is used to identify the industry type of the merchant submitting the authorization request. The following table lists the industry types supported by this component.

MerchantNumber Property (FDMSReversal Component)

A unique number used to identify the merchant within the FDMS and Datawire systems.

Syntax

property MerchantNumber: String read get_MerchantNumber write set_MerchantNumber;

Default Value

''

Remarks

This property contains a unique number (typically 12 digits) which is assigned by the signing merchant's bank or processor. This field is used to identify the merchant within the FDMS and Datawire systems, and is used along with the MerchantTerminalNumber and DatawireId as connection credentials.

MerchantTerminalNumber Property (FDMSReversal Component)

Used to identify a unique terminal within a merchant location.

Syntax

property MerchantTerminalNumber: String read get_MerchantTerminalNumber write set_MerchantTerminalNumber;

Default Value

''

Remarks

This property contains a number (typically 6 digits) assigned by FDMS to uniquely identify a terminal within a merchant location, and is used along with the MerchantNumber and DatawireId as connection credentials.

Proxy Property (FDMSReversal Component)

A set of properties related to proxy access.

Syntax

property Proxy: TibcProxy read get_Proxy write set_Proxy;

Remarks

This property contains fields describing the proxy through which the component will attempt to connect.

Response Property (FDMSReversal Component)

Contains the response to an authorization request.

Syntax

property Response: TibcFDMSResponse read get_Response;

Remarks

This property will contain the response returned from the FDMS server. It should be inspected (and logged) after an authorization to determine if the transaction was approved. The FDMSResponse type contains the following fields:

This property is read-only.

ReturnedACI Property (FDMSReversal Component)

Returned ACI from the original response.

Syntax

property ReturnedACI: String read get_ReturnedACI write set_ReturnedACI;

Default Value

''

Remarks

This property should be set with the Response.ReturnedACI from the transaction you wish to reverse.

SettlementAmount Property (FDMSReversal Component)

New settlement amount after the reversal.

Syntax

property SettlementAmount: String read get_SettlementAmount write set_SettlementAmount;

Default Value

''

Remarks

To send a full reversal, the new SettlementAmount should be set to "0". The entire transaction will then be reversed, and the original transaction should not be settled with the FDMSSettle component. If you wish to reverse only part of the transaction (known as a "partial reversal"), simply set the SettlementAmount to the new total, minus reversal amount. For instance, if you have a $25 transaction and you wish to reverse $10 because one item was not in stock, set the AuthorizedAmount to "2500" and the SettlementAmount to "1500", and then call Reverse to do a partial reversal.

Note that partial reversals may not be performed on partially authorized transactions. If the ApprovalCode starts with "AL" and the Response.AuthorizedAmount from the original transaction was less than the original TransactionAmount, a full reversal must be performed with the SettlementAmount set to "0".

SSLAcceptServerCertEncoded Property (FDMSReversal Component)

This is the certificate (PEM/Base64 encoded).

Syntax

property SSLAcceptServerCertEncoded: String read get_SSLAcceptServerCertEncoded write set_SSLAcceptServerCertEncoded;
property SSLAcceptServerCertEncodedB: TBytes read get_SSLAcceptServerCertEncodedB write set_SSLAcceptServerCertEncodedB;

Default Value

''

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The Store and Subject properties also may be used to specify a certificate.

When Encoded is set, a search is initiated in the current Store for the private key of the certificate. If the key is found, Subject is updated to reflect the full subject of the selected certificate; otherwise, Subject is set to an empty string.

This property is not available at design time.

SSLCertEncoded Property (FDMSReversal Component)

This is the certificate (PEM/Base64 encoded).

Syntax

property SSLCertEncoded: String read get_SSLCertEncoded write set_SSLCertEncoded;
property SSLCertEncodedB: TBytes read get_SSLCertEncodedB write set_SSLCertEncodedB;

Default Value

''

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The Store and Subject properties also may be used to specify a certificate.

When Encoded is set, a search is initiated in the current Store for the private key of the certificate. If the key is found, Subject is updated to reflect the full subject of the selected certificate; otherwise, Subject is set to an empty string.

This property is not available at design time.

SSLCertStore Property (FDMSReversal Component)

This is the name of the certificate store for the client certificate.

Syntax

property SSLCertStore: String read get_SSLCertStore write set_SSLCertStore;
property SSLCertStoreB: TBytes read get_SSLCertStoreB write set_SSLCertStoreB;

Default Value

'MY'

Remarks

This is the name of the certificate store for the client certificate.

The StoreType property denotes the type of the certificate store specified by Store. If the store is password protected, specify the password in StorePassword.

Store is used in conjunction with the Subject property to specify client certificates. If Store has a value, and Subject or Encoded is set, a search for a certificate is initiated. Please see the Subject property for details.

Designations of certificate stores are platform dependent.

The following designations are the most common User and Machine certificate stores in Windows:

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

SSLCertStorePassword Property (FDMSReversal Component)

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Syntax

property SSLCertStorePassword: String read get_SSLCertStorePassword write set_SSLCertStorePassword;

Default Value

''

Remarks

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

SSLCertStoreType Property (FDMSReversal Component)

This is the type of certificate store for this certificate.

Syntax

property SSLCertStoreType: TibcCertStoreTypes read get_SSLCertStoreType write set_SSLCertStoreType;

TibcCertStoreTypes = (
  cstUser,
  cstMachine,
  cstPFXFile,
  cstPFXBlob,
  cstJKSFile,
  cstJKSBlob,
  cstPEMKeyFile,
  cstPEMKeyBlob,
  cstPublicKeyFile,
  cstPublicKeyBlob,
  cstSSHPublicKeyBlob,
  cstP7BFile,
  cstP7BBlob,
  cstSSHPublicKeyFile,
  cstPPKFile,
  cstPPKBlob,
  cstXMLFile,
  cstXMLBlob,
  cstJWKFile,
  cstJWKBlob,
  cstSecurityKey,
  cstBCFKSFile,
  cstBCFKSBlob,
  cstPKCS11,
  cstAuto
);

Default Value

cstUser

Remarks

This is the type of certificate store for this certificate.

The component supports both public and private keys in a variety of formats. When the cstAuto value is used, the component will automatically determine the type. This property can take one of the following values:

SSLCertSubject Property (FDMSReversal Component)

This is the subject of the certificate used for client authentication.

Syntax

property SSLCertSubject: String read get_SSLCertSubject write set_SSLCertSubject;

Default Value

''

Remarks

This is the subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:

If a field value contains a comma, it must be quoted.

SSLProvider Property (FDMSReversal Component)

This specifies the SSL/TLS implementation to use.

Syntax

property SSLProvider: TibcTSSLProviders read get_SSLProvider write set_SSLProvider;

TibcTSSLProviders = (
  sslpAutomatic,
  sslpPlatform,
  sslpInternal
);

Default Value

sslpAutomatic

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the component will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are:

In most cases using the default value (Automatic) is recommended. The component will select a provider depending on the current platform.

When Automatic is selected, on Windows the component will use the platform implementation. On Linux/macOS the component will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used on all platforms.

SSLServerCertEncoded Property (FDMSReversal Component)

This is the certificate (PEM/Base64 encoded).

Syntax

property SSLServerCertEncoded: String read get_SSLServerCertEncoded;
property SSLServerCertEncodedB: TBytes read get_SSLServerCertEncodedB;

Default Value

''

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The Store and Subject properties also may be used to specify a certificate.

When Encoded is set, a search is initiated in the current Store for the private key of the certificate. If the key is found, Subject is updated to reflect the full subject of the selected certificate; otherwise, Subject is set to an empty string.

This property is read-only and not available at design time.

Timeout Property (FDMSReversal Component)

A timeout for the component.

Syntax

property Timeout: Integer read get_Timeout write set_Timeout;

Default Value

30

Remarks

If Timeout is set to a positive value, and an operation cannot be completed immediately, the component will return with an error after Timeout seconds.

The default value for Timeout is 30 (seconds).

TransactionId Property (FDMSReversal Component)

Transaction Id from the original response.

Syntax

property TransactionId: String read get_TransactionId write set_TransactionId;

Default Value

''

Remarks

This property should be set with the Response.TransactionId from the transaction you wish to reverse.

TransactionNumber Property (FDMSReversal Component)

Uniquely identifies the transaction.

Syntax

property TransactionNumber: String read get_TransactionNumber write set_TransactionNumber;

Default Value

''

Remarks

The TransactionNumber (otherwise known as the Client Reference Number, or ClientRef) uniquely identifies the packet sent by the application to the Datawire system. This parameter stores some unique token of information, and is used to match the response to the initial request sent. For example, the client application could use a static counter that is increased with the each executed request.

For all components except FDMSGiftCard the maximum length of this property is 14 alphanumeric characters.

The FDMS recommended format is "tttttttVnnnnrrr" where ttttttt is a 7 digit transaction id, V is a constant, and nnn is a 3 digit version number and rrr is a 3 digit revision number. The 6 digit version number is typically static but unique for an application (Example: Version 2.5 = tttttttV002500).

For the Rapid Connect platform, the 6 character version number should be your Project/TPPID value. The entire TransactionNumber must be unique within a 24 hour time period.

The FDMSGiftCard also passes this value to the FDMS Closed Loop Gift Card system as a transaction id, and therefore the following restrictions are enforced: The maximum length is 7 characters. If the first character is an 'X', the remaining characters must be in the range '0' through 'F', indicating a hexadecimal number. Otherwise the FDMS Closed Loop Gift Card system only allows digits in this property.

URL Property (FDMSReversal Component)

Location of the Datawire server to which transactions are sent.

Syntax

property URL: String read get_URL write set_URL;

Default Value

'https://staging1.datawire.net/sd/'

Remarks

This is the URL to which all authorization and settlement transactions are sent. This URL is acquired by using the FDMSRegister component. Once you Register and Activate the merchant using the FDMSRegister component, you may then do a Service Discovery. After sending a Service Discovery transaction, the Datawire system will return a list of transaction URLs. The URL from this list with the shortest round-trip transit time from a ping is the URL you should use here.

Note: By default, this property is populated with the Datawire Staging (test) server, and is not the correct URL to use in a production environment. In a production environment, this URL is supplied by the FDMSRegister component.

ValidationCode Property (FDMSReversal Component)

Validation Code from the original response.

Syntax

property ValidationCode: String read get_ValidationCode write set_ValidationCode;

Default Value

''

Remarks

This property should be set with the Response.ValidationCode from the transaction you wish to reverse.

Config Method (FDMSReversal Component)

Sets or retrieves a configuration setting.

Syntax

function Config(ConfigurationString: String): String;

Remarks

Config is a generic method available in every component. It is used to set and retrieve configuration settings for the component.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

Interrupt Method (FDMSReversal Component)

Interrupts the current action.

Syntax

procedure Interrupt();

Remarks

This method interrupts any processing that the component is currently executing.

Reset Method (FDMSReversal Component)

Clears all properties to their default values.

Syntax

procedure Reset();

Remarks

This method clears all properties to their default values.

Reverse Method (FDMSReversal Component)

Reverses a credit card transaction.

Syntax

procedure Reverse();

Remarks

Unlike the Timeout Reversals used in the FDMSDebit and FDMSBenefit components, a credit card reversal is used to void a transaction and return funds to the customer. Often this is used in a split-tender situation, where a customer uses a prepaid Visa or MasterCard (or health care FSA card) to make a purchase which is partially authorized for less than the transaction amount. Partially authorized transactions will have an ApprovalCode that beings with "AL" instead of "AP". If the customer does not have an additional source of funds to make up the difference, the authorization must be reversed and the funds immediately returned to the customer's card. To do this, set the AuthorizedAmount to the Response.AuthorizedAmount from the original transaction, and set the SettlementAmount to "0". This is called a full reversal (in this case, of a partially authorized transaction), and the detail record for the original transaction should be discarded - it must not be settled at the end of the day.

Alternatively, a merchant may need to settle a transaction amount for less than was originally authorized. In this case, set the AuthorizedAmount to the original TransactionAmount, and set the SettlementAmount to the new amount you wish to settle for. After a successful reversal, use the FDMSDetailRecord component to update the SettlementAmount of the detail record for the original transaction with the new amount. This is called a partial reversal. You may also submit a full reversal by setting the SettlementAmount to "0". In that case, all of the funds are returned to the customer and the detail record for the original transaction should be discarded.

Note that partial authorizations must be fully reversed. You cannot partially reverse a partial authorization. Normally authorized transactions can be either partially or fully reversed. A normal authorization has a ApprovalCode that begins with "AP" (APproved). A partial authorization has a ApprovalCode that begins with "AL" (Approved for a Lesser amount).

Upon a successful reversal, the ApprovalCode property will contain either "AP888888" or "AP868686" indicating the reversal was accepted. This code does not indicate the original transaction was found and reversed, merely that the reversal was received and properly formatted. First Data does not actually check whether the original transaction occurred or not. If the transaction was declined ApprovalCode will contain one of the response messages listed in the table below:

Note that partially authorized transactions cannot be partially reversed, they must be fully reversed. For instance, say a customer uses a prepaid visa card to buy $100 worth of merchandise, but his card only has a $50 balance. If the customer does not have an additional form of tender, (cash, check, credit, etc), the $50 that was partially authorized must be reversed and returned to the card. First Data does not support any scenario where a partially authorized transaction may be reversed for less than the full amount.

To reiterate, when a transaction is fully reversed, it must be removed from the batch settlement entirely. A partially reversed transaction must update the SettlementAmount of the original detail record, using the FDMSDetailRecord component. Reversal transactions themselves may not be settled, even if the CaptureFlag is True.

Important Note: You must ping your list of service provider URLs and update the URL property to the service provider with the shortest response time every 100 transactions, as well as when your application initially starts. This is not a normal ICMP ping - to determine the fastest transaction URL you must use the special Ping method inside the FDMSRegister component. (You may update your list of service provider URLs with the FDMSRegister component's ServiceDiscovery method).

Connected Event (FDMSReversal Component)

This event is fired immediately after a connection completes (or fails).

Syntax

type TConnectedEvent = procedure (
  Sender: TObject;
  StatusCode: Integer;
  const Description: String
) of Object;

property OnConnected: TConnectedEvent read FOnConnected write FOnConnected;

Remarks

If the connection is made normally, StatusCode is 0 and Description is 'OK'.

If the connection fails, StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Please refer to the Error Codes section for more information.

DataPacketIn Event (FDMSReversal Component)

Fired when receiving a data packet from the transaction server.

Syntax

type TDataPacketInEvent = procedure (
  Sender: TObject;
  DataPacket: String;
  DataPacketB: TBytes
) of Object;

property OnDataPacketIn: TDataPacketInEvent read FOnDataPacketIn write FOnDataPacketIn;

Remarks

This event fires when a packet is received. The entire data packet (including all framing and error detection characters) is contained in the parameter "DataPacket". This parameter may be inspected for advanced troubleshooting, or to extract additional response properties beyond the scope of this component.

DataPacketOut Event (FDMSReversal Component)

Fired when sending a data packet to the transaction server.

Syntax

type TDataPacketOutEvent = procedure (
  Sender: TObject;
  DataPacket: String;
  DataPacketB: TBytes
) of Object;

property OnDataPacketOut: TDataPacketOutEvent read FOnDataPacketOut write FOnDataPacketOut;

Remarks

This event fires right before each data packet is sent. The entire data packet (including all framing and error detection characters) is contained in the parameter "DataPacket". This parameter may be inspected for advanced troubleshooting, or may be modified to support additional features beyond the scope of this component.

Disconnected Event (FDMSReversal Component)

This event is fired when a connection is closed.

Syntax

type TDisconnectedEvent = procedure (
  Sender: TObject;
  StatusCode: Integer;
  const Description: String
) of Object;

property OnDisconnected: TDisconnectedEvent read FOnDisconnected write FOnDisconnected;

Remarks

If the connection is broken normally, StatusCode is 0 and Description is 'OK'.

If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.

Please refer to the Error Codes section for more information.

Error Event (FDMSReversal Component)

Fired when information is available about errors during data delivery.

Syntax

type TErrorEvent = procedure (
  Sender: TObject;
  ErrorCode: Integer;
  const Description: String
) of Object;

property OnError: TErrorEvent read FOnError write FOnError;

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the component raises an exception.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

SSLServerAuthentication Event (FDMSReversal Component)

Fired after the server presents its certificate to the client.

Syntax

type TSSLServerAuthenticationEvent = procedure (
  Sender: TObject;
  CertEncoded: String;
  CertEncodedB: TBytes;
  const CertSubject: String;
  const CertIssuer: String;
  const Status: String;
  var Accept: Boolean
) of Object;

property OnSSLServerAuthentication: TSSLServerAuthenticationEvent read FOnSSLServerAuthentication write FOnSSLServerAuthentication;

Remarks

During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.

When Accept is False, Status shows why the verification failed (otherwise, Status contains the string OK). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (FDMSReversal Component)

Fired when secure connection progress messages are available.

Syntax

type TSSLStatusEvent = procedure (
  Sender: TObject;
  const Message: String
) of Object;

property OnSSLStatus: TSSLStatusEvent read FOnSSLStatus write FOnSSLStatus;

Remarks

The event is fired for informational and logging purposes only. This event tracks the progress of the connection.

Status Event (FDMSReversal Component)

Shows the progress of the FDMS/Datawire connection.

Syntax

type TStatusEvent = procedure (
  Sender: TObject;
  const Message: String
) of Object;

property OnStatus: TStatusEvent read FOnStatus write FOnStatus;

Remarks

The event is fired for informational and logging purposes only. Used to track the progress of the connection.

CCCard Type

Contains the customer's credit card information.

Remarks

This type contains the customer's credit card information. If you are processing transactions where the customer and his credit card are physically present, set the MagneticStripe field with the data read from the card reader. You may set either Track1 or Track2 data (but not both). You must also set the EntryDataSource to indicate which track is stored in the MagneticStripe field.

Example: Setting the Fields CCCard card = new CCCard(); card.MagneticStripe = "B4012000033330026^FDMS TEST CARD /VISA^090410054321000000000000000 150 A"; card.EntryDataSource = edsTrack1; Example: Using a Constructor CCCard card = new CCCard("B4012000033330026^FDMS TEST CARD /VISA^090410054321000000000000000 150 A", edsTrack1);

If you are processing a transaction where the credit card is not physically present (eCommerce, mail/order, etc) or if the magstripe on the back of the card cannot be read by the card reader, you must set the Number, ExpMonth, and ExpYear fields, and EntryDataSource must be set to one of the manually entered enumerations.

Example: Setting the Fields CCCard card = new CCCard(); card.Number = "4788250000028291"; card.ExpMonth = 12; card.ExpYear = 2010; card.EntryDataSource = edsManualEntryNoCardReader; Example: Using a Constructor CCCard card = new CCCard("4012000033330026", 04, 2009); Note that the constructor in the previous example automatically sets the EntryDataSource to edsManualEntryNoCardReader. If you wish to set any other value for the EntryDataSource, you must set it yourself before authorizing the transaction.

When authorizing a transaction, the fields used by the component are solely dependant on the value of EntryDataSource. If you set the Number, ExpMonth, and ExpYear fields, but EntryDataSource is set to edsTrack2, the component will look for MagneticStripe data when authorizing the transaction, and will raises an exception because none is present.

Fields

Constructors

constructor Create();

constructor Create(valNumber: String; valExpMonth: Integer; valExpYear: Integer);

constructor Create(valMagneticStripe: String; valEntryDataSource: TibcEntryDataSources);

FDMSResponse Type

Contains the response to the authorization.

Remarks

This type contains the results of a transaction made with the FDMSECommerce or FDMSRetail component. The fields contained by this type are listed below.

Fields

Constructors

constructor Create();

Proxy Type

The proxy the component will connect to.

Remarks

When connecting through a proxy, this type is used to specify different properties of the proxy, such as the Server and the AuthScheme.

Fields

Constructors

constructor Create();

constructor Create(valServer: String; valPort: Integer);

constructor Create(valServer: String; valPort: Integer; valUser: String; valPassword: String);

Config Settings (FDMSReversal Component)

FDMSReversal Config Settings

TCPClient Config Settings

SSL Config Settings

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

Socket Config Settings

Base Config Settings

Trappable Errors (FDMSReversal Component)

FDMSReversal Errors

The component may also return one of the following error codes, which are inherited from other components.

HTTP Errors

The component may also return one of the following error codes, which are inherited from other components.

TCPClient Errors

SSL Errors

TCP/IP Errors