PayPal Express Checkout - 2012 Podręcznik Użytkownika Pobierz pdf (Strona 17)

Express Checkout Integration Guide August 7, 2012 17

Getting Started With Express Checkout

Implementing the Simplest Express Checkout Integration

1. Specify that you want to execute the SetExpressCheckout API operation and the

version you want to use.

METHOD=SetExpressCheckout

VERSION=XX.0

2. Specify your API credentials.

Use the following parameters for a signature:

USER=API_username

PWD=API_password

SIGNATURE=API_signature

In the Sandbox, you can always use the following signature:

USER=sdk-three_api1.sdk.com

PWD=QFZCWN5HZM8VBG7Q

SIGNATURE=A-IzJhZZjhg29XQ2qnhapuwxIDzyAZQ92FRP5dqBzVesOkzbdUONzmOU

3. Specify the amount of the transaction; include the currency if it is not in US dollars.

Specify the total amount of the transaction if it is known; otherwise, specify the subtotal.

Regardless of the specified currency, the format must have a decimal point with exactly

two digits to the right and an optional thousands separator to the left, which must be a

comma.

For example, EUR 2.000,00 must be specified as 2000.00 or 2,000.00. The specified amount

cannot exceed USD $10,000.00, regardless of the currency used.

PAYMENTREQUEST_0_AMT=amount

PAYMENTREQUEST_0_CURRENCYCODE=currencyID

4. Specify the return URL.

The return URL is the page to which PayPal redirects your buyer’s browser after the buyer

logs into PayPal and approves the payment. Typically, this is a secure page

(https://...) on your site.

NOTE: You can use the return URL to piggyback parameters between pages on your site.

For example, you can set your Return URL to specify additional parameters using

the https://www.

yourcompany.com/page.html?param=value... syntax. The

parameters become available as request parameters on the page specified by the

Return URL.

RETURNURL=return_url

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PayPal Express Checkout - 2012 Podręcznik Użytkownika Strona 17