Xbase++ Requires Chilkat v11.0.0+
Xbase++
PayPal - Find Captures
See more PayPal Examples
Finds captures for previous authorizations. (A capture is when the funds from an authorization are captured. There can be more than one capture, where the sum adds to the full authorization amount or an amount lower than the authorized amount.)Chilkat Xbase++ Downloads
LOCAL nSuccess
LOCAL oJsonToken
LOCAL oSbAuth
LOCAL oRest
LOCAL nBAutoReconnect
LOCAL oSbJsonResponse
LOCAL oJson
LOCAL oSbTemp
LOCAL oJsonCapture
LOCAL nNumPayments
LOCAL i
LOCAL j
LOCAL nNumTransactions
LOCAL nNumRelatedResources
LOCAL k
nSuccess := 0
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Load our previously obtained access token. (see PayPal OAuth2 Access Token)
oJsonToken := CreateObject("Chilkat.JsonObject")
oJsonToken:LoadFile("qa_data/tokens/paypal.json")
// Build the Authorization request header field value.
oSbAuth := CreateObject("Chilkat.StringBuilder")
// token_type should be "Bearer"
oSbAuth:Append(oJsonToken:StringOf("token_type"))
oSbAuth:Append(" ")
oSbAuth:Append(oJsonToken:StringOf("access_token"))
// Make the initial connection.
// A single REST object, once connected, can be used for many PayPal REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
oRest := CreateObject("Chilkat.Rest")
nBAutoReconnect := 1
nSuccess := oRest:Connect("api.sandbox.paypal.com", 443, 1, nBAutoReconnect)
IF (nSuccess == 0)
? oRest:LastErrorText
oJsonToken:destroy()
oSbAuth:destroy()
oRest:destroy()
RETURN
ENDIF
// ----------------------------------------------------------------------------------------------
// The code above this comment could be placed inside a function/subroutine within the application
// because the connection does not need to be made for every request. Once the connection is made
// the app may send many requests..
// ----------------------------------------------------------------------------------------------
// Clear the REST object of any headers or query params from previous requests.
oRest:ClearAllHeaders()
oRest:ClearAllQueryParams()
oRest:AddHeader("Authorization", oSbAuth:GetAsString())
// To find captured payments, we list payments and look for those
// containing a "capture" resource.
oRest:AddQueryParam("count", "100")
oRest:AddQueryParam("start_index", "0")
oRest:AddQueryParam("sort_by", "update_time")
oRest:AddQueryParam("sort_order", "asc")
// Send the GET request and get the JSON response.
oSbJsonResponse := CreateObject("Chilkat.StringBuilder")
nSuccess := oRest:FullRequestNoBodySb("GET", "/v1/payments/payment", oSbJsonResponse)
IF (nSuccess == 0)
? oRest:LastErrorText
oJsonToken:destroy()
oSbAuth:destroy()
oRest:destroy()
oSbJsonResponse:destroy()
RETURN
ENDIF
oJson := CreateObject("Chilkat.JsonObject")
oJson:EmitCompact := 0
oJson:LoadSb(oSbJsonResponse)
// (optional) Save the entire JSON response to a file to examine if desired..
oSbTemp := CreateObject("Chilkat.StringBuilder")
oJson:EmitSb(oSbTemp)
oSbTemp:WriteFile("qa_output/paypal_payments.json", "utf-8", 0)
? "Response Status Code = " + Str(oRest:ResponseStatusCode)
// Did we get a 200 success response?
IF (oRest:ResponseStatusCode != 200)
? oJson:Emit()
? "Failed."
oJsonToken:destroy()
oSbAuth:destroy()
oRest:destroy()
oSbJsonResponse:destroy()
oJson:destroy()
oSbTemp:destroy()
RETURN
ENDIF
// We are looking for "capture" resources .
// As shown below, we are looking in the "transactions" for "related_resources"
// containing "capture" JSON objects.
// {
// "payments": [
// {
// "id": "PAY-2CY489250W145633HLA3DK3Y",
// "create_time": "2016-11-24T00:33:51Z",
// "update_time": "2016-11-24T00:40:54Z",
// "state": "approved",
// "intent": "authorize",
// "payer": {
// "payment_method": "credit_card",
// "funding_instruments": [
// {
// ...
// }
// ]
// },
// "transactions": [
// {
// "amount": {
// ...
// },
// "description": "This is the payment transaction description.",
// "related_resources": [
// {
// "authorization": {
// ...
// }
// },
// {
// "capture": {
// "id": "1LY5310469661362J",
// "create_time": "2016-11-24T00:40:50Z",
// "update_time": "2016-11-24T00:40:54Z",
// "amount": {
// "total": "4.54",
// "currency": "USD"
// },
// "state": "completed",
// "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
// "transaction_fee": {
// "value": "0.43",
// "currency": "USD"
// },
// ...
//
// Iterate over the payments and show each capture
oJsonCapture := CreateObject("Chilkat.JsonObject")
nNumPayments := oJson:SizeOfArray("payments")
i := 0
DO WHILE i < nNumPayments
oJson:I := i
j := 0
nNumTransactions := oJson:SizeOfArray("payments[i].transactions")
DO WHILE j < nNumTransactions
oJson:J := j
nNumRelatedResources := oJson:SizeOfArray("payments[i].transactions[j].related_resources")
k := 0
DO WHILE k < nNumRelatedResources
oJson:K := k
IF (oJson:HasMember("payments[i].transactions[j].related_resources[k].capture") == 1)
oJson:ObjectOf2("payments[i].transactions[j].related_resources[k].capture", oJsonCapture)
? "capture id: " + oJsonCapture:StringOf("id")
? "state: " + oJsonCapture:StringOf("state")
? "total: " + oJsonCapture:StringOf("amount.total")
? "----"
ENDIF
k := k + 1
ENDDO
j := j + 1
ENDDO
i := i + 1
ENDDO
? "success"
oJsonToken:destroy()
oSbAuth:destroy()
oRest:destroy()
oSbJsonResponse:destroy()
oJson:destroy()
oSbTemp:destroy()
oJsonCapture:destroy()