Event Enumeration Reference


                    
                    
                    authenticationRequired(_:)

The session requires authentication. Use AuthenticateAction to proceed (immediately start the biometric authentication) or cancel the session.

Declaration

Swift

case authenticationRequired(_: AuthenticateAction)


                    
                    
                    authenticationCompleted

The authentication is success. After this event, if device is near POS, posConnected will be sent by SDK.

Declaration

Swift

case authenticationCompleted


                    
                    
                    posConnected

The device is tapped to POS reader.

Declaration

Swift

case posConnected


                    
                    
                    posDisconnected

The device is disconnected from POS reader while the transaction is still ongoing. Application should notify user to tap the device back to POS reader.

Declaration

Swift

case posDisconnected


                    
                    
                    transactionCompleted(_:)

The transaction has completed. Refer to TransactionContext for more transaction details.

Declaration

Swift

case transactionCompleted(_: TransactionContext)


                    
                    
                    errorEncountered(_:)

The session encounter non-retriable errors.

Possible errors:

cancelled
maxSessionDurationReached
“ContactlessPaymentSession/Error/nfcPermissionNotAccepted
systemEligibilityFailed
keychainError(_:)
noDefaultCard
noPaymentKeys
apduFailure(_:)
transmissionError
sessionInvalidated
unknown(_:)
deviceEnvironmentUnsafe(_:)
setDefaultCardFailure
invalidDigitalCardID
authenticationExpired
posNotSupported
cardNotSupported
cardNotActive

Declaration

Swift

case errorEncountered(_: Error)