PayPal XMLPay - 2009 Guia do Utilizador descarregar pdf (Página 15)

XMLPay Developer’s Guide 15

XMLPay Syntax

This chapter presents the syntax for transaction requests and responses using a simplified

notation.

z Appendix A, “XMLPay Schemas,” provides the complete syntax, expressed in W3C

XML-schema notation.

z Appendix B, “XMLPay DTD,” provides a document type definition (DTD) representation

of the schema.

Syntax Notation

The following example presents the notation used to describe XMLPay document:

(element)

(optionalElement)?

(alternativeElement1|alternativeElement2)

(element)+

(element)*

</Example>

NOTE:The Payflow SDK SDK download package provides specific examples of XML

documents using the Pro client service.

The XMLPayRequest Document (Transactions)

(Vendor)

(Partner)

element Indicates the occurrence of a (possibly complex) XML element (for

example, <element>...</element>) defined elsewhere.

? Indicates an optional element.

| Separates alternative elements, any one of which is allowed.

+ Indicates that one or more occurrences of an element are allowed.

* Indicates that zero or more occurrences of an element are allowed.

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PayPal XMLPay - 2009 Guia do Utilizador Página 15