PayPal Name-Value Pair API - 2013 Uživatelská příručka Strana 20
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PayPal Name-Value Pair API Basics
Creating an NVP Request
1
20 February 01, 2013 Name-Value Pair API Developer Guide
SUBJECT=merchantEmailAddress
NOTE: Typically, a merchant grants third-party permissions to a shopping cart. The merchant
previously must have given you permission to execute the API operation.
Specifying Credentials Using cURL
The following example shows one way to specify a signature using cURL:
curl --insecure https://api-3t.sandbox.paypal.com/nvp -d ^
"METHOD=name^ &VERSION=XX.0^ &USER=API_username^ &PWD=API_password^
&SIGNATURE=API_signature^ &..."
NOTE: This example does not establish a secure connection and should not be used live on
paypal.com.
URL Encoding
All requests to execute PayPal API operations sent using HTTP must be URL-encoded. The
encoding ensures that you can transmit special characters, characters that are not allowed in a
URL, and characters that have special meaning in a URL, such as the equal sign and
ampersand.
The PayPal NVP API uses the HTTP protocol to send requests and receive responses from a
PayPal API server. You must encode all data sent using the HTTP protocol because data that is
not encoded could be misinterpreted as part of the HTTP protocol instead of part of the
request. Most programming languages provide a way to encode strings in this way. You
should consistently URL-encode the complete API request; otherwise, you may find that
unanticipated data causes an error.
NOTE: An HTTP form is automatically URL-encoded by most browsers.
For example, consider the following NVP string:
NAME=Robert Moore&COMPANY=R. H. Moore & Associates
It is encoded as follows:
NAME=Robert+Moore&COMPANY=R.+H.+Moore+%26+Associates
Use the following methods to URL-encode or URL-decode your NVP strings:
Encoding and decoding methods for URLs
Language Method
ASP.NET Encode System.Web.HttpUtility.UrlEncode(buffer,
Encoding.Default)
Decode System.Web.HttpUtility.UrlDecode(buffer,
Encoding.Default)
- Name-Value Pair API 1
- Developer Guide 1
- Contents 10
- What’s New 11
- What's New 12
- About This Guide 13
- Intended Audience 13
- Documentation Feedback 13
- PayPal Name-Value Pair API 15
- UTF-8 Character Encoding 16
- Multiple API Operations 16
- NVP Format 17
- Creating an NVP Request 18
- URL Encoding 20
- Executing NVP API Operations 21
- Responding to an NVP Response 22
- Common Response Fields 23
- Error Responses 23
- URL Decoding 24
- AddressVerify API Operation 25
- Operation Reference 27
- DoCapture Response Message 29
- DoAuthorization API Operation 32
- DoVoid API Operation 39
- DoVoid Response Message 40
- DoDirectPayment API Operation 41
- Credit Card Details Fields 42
- Payment Details Fields 44
- Payment Details Item Fields 46
- Ship To Address Fields 47
- ThreeDSecure Response Fields 50
- DoNonReferencedCredit API 51
- Callback API Operation 55
- Callback Response Message 58
- 0_SHIPTONAM 65
- 0_SHIPTOSTR 65
- Checkout transaction 78
- total cost > 0 83
- Digital 102
- Physical 102
- express-checkout 108
- echeck 108
- instant 108
- GetBalance API Operation 117
- GetPalDetails API Operation 119
- GetTransactionDetails API 121
- Operation 121
- Receiver Information Fields 123
- Payer Information Fields 123
- Payer Name Fields 124
- Address Fields 124
- Payment Information Fields 125
- Payment Item Fields 130
- Auction Information Fields 131
- Subscription Terms Fields 131
- ManagePendingTransactionStatu 133
- TransactionStatus.” 134
- MassPay API Operation 135
- Recurring Payments and 137
- Reference Transactions API 137
- Operations 137
- MasterCard 142
- Discover 142
- Maestro: See note 142
- Maestro – See note 152
- InstantOnly 166
- Confirmed 168
- Unconfirmed 168
- verified 170
- unverified 170
- Partial – Partial refund 185
- Merchant Store Details Fields 187
- RefundInfoType Fields 188
- API call is 100 189
- : No wildcards are allowed 190
- API Error Codes 193
- Validation Errors 194
- DirectPayment API Errors 197
- SetExpressCheckout API Errors 209
- TransactionSearch API Errors 239
- RefundTransaction API Errors 240
- MassPay API Errors 244
- Recurring Payments Errors 247
- CreateBillingAgreement Errors 257
- UpdateBillingAgreement Errors 257
- DoReferenceTransaction Errors 258
- AddressVerify API Errors 268
- Countries and Regions 271
- Supported by PayPal 271
- State and Province Codes 279
- Currency Codes 283
- AVS and CVV2 Response Codes 287
- CVV2 Response Codes 289
- What’s New in Version 85.0 292
- What’s New in Version 84.0 292
- What’s New in Version 82.0 293
- What’s New in Version 80.0 295
- What’s New in Version 74.0 295
- What’s New in Version 72.0 296
- What's New in Version 69 297
- Response 301
- What's New in Version 66 302
- Revision History 303
- Numerics 307
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