PayPal Certified Developer Program - 2008 Instrukcja Konfiguracji Pobierz pdf (Strona 58)

Name-Value Pair (NVP) API

Review Questions

58 March 2008 PayPal Certified Developer Program Study Guide

Multiple errors can be returned. Each set of errors has a different numeric suffix, starting with

0 and incrementing by 1 for each error.

For possible causes of errors and how to correct them, see the error-message reference

information in PayPal Name-Value Pair API Developer Guide and Reference.

Posting Using HTTPS

The web application posts the URL-encoded NVP string over an HTTPS connection to one of

the PayPal API servers. PayPal provides a live server. It also provides a Sandbox server that

allows applications to process transactions in a test environment.

API Servers for API Signature Security

If the application uses an API signature, post requests to one of the following servers:

z Sandbox — https://api-3t.sandbox.paypal.com/nvp

z Live — https://api-3t.paypal.com/nvp

API Servers for API Certificate Security

If the application uses an API certificate, post requests to one of the following servers:

z Sandbox — https://api.sandbox.paypal.com/nvp

z Live — https://api.paypal.com/nvp

Review Questions

Answers to review questions are in Appendix A, “Answers to Review Questions.”

1. What character is used to separate name/value pairs in an NVP string?

2. True or false: In an NVP request, parameter names are not case-sensitive.

3. In an NVP request, what parameter gives the name of the API call?

4. True or false: More than one error can be returned in a single error response.

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PayPal Certified Developer Program - 2008 Instrukcja Konfiguracji Strona 58