Visual FoxPro
Visual FoxPro
PayPal - Authorize a Payment
See more PayPal Examples
Creates an authorization for a payment. This is for the case where the payment will first be authorized, and then captured at a later date. (In other words, the buyer is providing his/her credit card information now, and the actual charge (capture) will take place at a later time.)Creating the authorization is the same as creating "sale" payment, except the intent is set to "authorize" instead of "sale".
This example requests an authorization for a credit card payment (using a credit card ID previoulsy stored in the PayPal vault).
Note: This example requires Chilkat v9.5.0.65 or greater.
Chilkat Visual FoxPro Downloads
LOCAL lnSuccess
LOCAL loJsonToken
LOCAL loSbAuth
LOCAL loRest
LOCAL lnBAutoReconnect
LOCAL loJson
LOCAL loSbJsonRequest
LOCAL loSbJsonResponse
lnSuccess = 0
* Note: Requires Chilkat v9.5.0.65 or greater.
* 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)
loJsonToken = CreateObject('Chilkat.JsonObject')
loJsonToken.LoadFile("qa_data/tokens/paypal.json")
* Build the Authorization request header field value.
loSbAuth = CreateObject('Chilkat.StringBuilder')
* token_type should be "Bearer"
loSbAuth.Append(loJsonToken.StringOf("token_type"))
loSbAuth.Append(" ")
loSbAuth.Append(loJsonToken.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.
loRest = CreateObject('Chilkat.Rest')
lnBAutoReconnect = 1
lnSuccess = loRest.Connect("api.sandbox.paypal.com",443,1,lnBAutoReconnect)
IF (lnSuccess <> 1) THEN
? loRest.LastErrorText
RELEASE loJsonToken
RELEASE loSbAuth
RELEASE loRest
CANCEL
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..
* ----------------------------------------------------------------------------------------------
* Build the JSON containing the transaction information.
loJson = CreateObject('Chilkat.JsonObject')
loJson.EmitCompact = 0
loJson.UpdateString("intent","authorize")
loJson.UpdateString("payer.payment_method","credit_card")
loJson.UpdateString("payer.funding_instruments[0].credit_card_token.credit_card_id","CARD-52W84623JH8043102LA3CLGA")
loJson.UpdateString("payer.funding_instruments[0].credit_card_token.payer_id","user12345")
loJson.UpdateString("transactions[0].amount.total","6.70")
loJson.UpdateString("transactions[0].amount.currency","USD")
loJson.UpdateString("transactions[0].description","This is the payment transaction description.")
? loJson.Emit()
* The JSON created by the above code is this:
* {
* "intent": "authorize",
* "payer": {
* "payment_method": "credit_card",
* "funding_instruments": [
* {
* "credit_card_token": {
* "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
* "payer_id": "user12345"
* }
* }
* ]
* },
* "transactions": [
* {
* "amount": {
* "total": "6.70",
* "currency": "USD"
* },
* "description": "This is the payment transaction description."
* }
* ]
* }
loRest.AddHeader("Authorization",loSbAuth.GetAsString())
loRest.AddHeader("Content-Type","application/json")
* Send the POST request containign the JSON in the request body, and get the JSON response.
loSbJsonRequest = CreateObject('Chilkat.StringBuilder')
loJson.EmitCompact = 1
loJson.EmitSb(loSbJsonRequest)
loSbJsonResponse = CreateObject('Chilkat.StringBuilder')
lnSuccess = loRest.FullRequestSb("POST","/v1/payments/payment",loSbJsonRequest,loSbJsonResponse)
IF (lnSuccess <> 1) THEN
? loRest.LastErrorText
RELEASE loJsonToken
RELEASE loSbAuth
RELEASE loRest
RELEASE loJson
RELEASE loSbJsonRequest
RELEASE loSbJsonResponse
CANCEL
ENDIF
loJson.EmitCompact = 0
loJson.LoadSb(loSbJsonResponse)
? "Response Status Code = " + STR(loRest.ResponseStatusCode)
* Did we get a 201 success response?
IF (loRest.ResponseStatusCode <> 201) THEN
? loJson.Emit()
? "Failed."
RELEASE loJsonToken
RELEASE loSbAuth
RELEASE loRest
RELEASE loJson
RELEASE loSbJsonRequest
RELEASE loSbJsonResponse
CANCEL
ENDIF
* Sample JSON response is shown below.
? loJson.Emit()
* The authorization ID found in the related_resources is used to capture the payment at a later time.
? "authorization id: " + loJson.StringOf("transactions[0].related_resources[0].authorization.id")
? "success"
* ------------------------------------------------
* A sample JSON response:
* {
* "id": "PAY-2CY489250W145633HLA3DK3Y",
* "create_time": "2016-11-24T00:33:51Z",
* "update_time": "2016-11-24T00:33:58Z",
* "state": "approved",
* "intent": "authorize",
* "payer": {
* "payment_method": "credit_card",
* "funding_instruments": [
* {
* "credit_card_token": {
* "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
* "payer_id": "user12345",
* "last4": "9974",
* "type": "visa",
* "expire_month": "9",
* "expire_year": "2021"
* }
* }
* ]
* },
* "transactions": [
* {
* "amount": {
* "total": "6.70",
* "currency": "USD",
* "details": {
* "subtotal": "6.70"
* }
* },
* "description": "This is the payment transaction description.",
* "related_resources": [
* {
* "authorization": {
* "id": "7X8332687A4929542",
* "create_time": "2016-11-24T00:33:51Z",
* "update_time": "2016-11-24T00:33:58Z",
* "amount": {
* "total": "6.70",
* "currency": "USD",
* "details": {
* "subtotal": "6.70"
* }
* },
* "state": "authorized",
* "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
* "valid_until": "2016-12-23T00:33:51Z",
* "links": [
* {
* "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542",
* "rel": "self",
* "method": "GET"
* },
* {
* "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542/capture",
* "rel": "capture",
* "method": "POST"
* },
* {
* "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542/void",
* "rel": "void",
* "method": "POST"
* },
* {
* "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
* "rel": "parent_payment",
* "method": "GET"
* }
* ],
* "processor_response": {
* "avs_code": "X",
* "cvv_code": "M"
* },
* "fmf_details": {}
* }
* }
* ]
* }
* ],
* "links": [
* {
* "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
* "rel": "self",
* "method": "GET"
* }
* ]
* }
RELEASE loJsonToken
RELEASE loSbAuth
RELEASE loRest
RELEASE loJson
RELEASE loSbJsonRequest
RELEASE loSbJsonResponse