Chilkat Examples

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Visual FoxPro Web API Examples

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(Visual FoxPro) PayPal Search for Invoices

Search PayPal invoices.

See also SearchInvoices

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL loJsonToken
LOCAL loSbAuth
LOCAL loRest
LOCAL lnBAutoReconnect
LOCAL lnSuccess
LOCAL loJson
LOCAL loSbRequestBody
LOCAL loSbResponseBody
LOCAL loJsonResponse
LOCAL lnNumInvoices
LOCAL i
LOCAL j
LOCAL lnNumBillingInfo
LOCAL lnNumLinks

* Note: Requires Chilkat v9.5.0.64 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_9_5_0.JsonObject')
loJsonToken.LoadFile("qa_data/tokens/paypal.json")

* Build the Authorization request header field value.
loSbAuth = CreateObject('Chilkat_9_5_0.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_9_5_0.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..
* ----------------------------------------------------------------------------------------------

* Create JSON to specify the search
loJson = CreateObject('Chilkat_9_5_0.JsonObject')
loJson.EmitCompact = 0
loJson.AppendString("start_invoice_date","2016-01-01 PST")
loJson.AppendString("end_invoice_date","2016-11-16 PST")
loJson.AppendInt("page",0)
loJson.AppendInt("page_size",10)
loJson.AppendBool("total_count_required",1)

? loJson.Emit()

* The JSON by the above code:

* 	{
* 	  "start_invoice_date": "2016-01-01 PST",
* 	  "end_invoice_date": "2016-11-16 PST",
* 	  "page": 0,
* 	  "page_size": 10,
* 	  "total_count_required": true
* 	}

* Send the POST equivalent to this CURL command:

* 	curl -v -X POST https://api.sandbox.paypal.com/v1/invoicing/search/ \
* 	-H "Content-Type:application/json" \
* 	-H "Authorization: Bearer Access-Token" \
* 	-d '{ invoice JSON goes here }'

loJson.EmitCompact = 1
loSbRequestBody = CreateObject('Chilkat_9_5_0.StringBuilder')
loSbResponseBody = CreateObject('Chilkat_9_5_0.StringBuilder')

loRest.AddHeader("Content-Type","application/json")
loRest.AddHeader("Authorization",loSbAuth.GetAsString())
loJson.EmitSb(loSbRequestBody)

lnSuccess = loRest.FullRequestSb("POST","/v1/invoicing/search",loSbRequestBody,loSbResponseBody)
IF (lnSuccess <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loJsonToken
    RELEASE loSbAuth
    RELEASE loRest
    RELEASE loJson
    RELEASE loSbRequestBody
    RELEASE loSbResponseBody
    CANCEL
ENDIF

* We should have some sort of JSON response.  It could be successful, or an error.
loJsonResponse = CreateObject('Chilkat_9_5_0.JsonObject')
loJsonResponse.EmitCompact = 0
loJsonResponse.LoadSb(loSbResponseBody)

? "Response Status Code = " + STR(loRest.ResponseStatusCode)

* Did we get a 200 success response?
IF (loRest.ResponseStatusCode <> 200) THEN
    * Show the JSON response body
    ? loJsonResponse.Emit()
    ? "Failed."
    RELEASE loJsonToken
    RELEASE loSbAuth
    RELEASE loRest
    RELEASE loJson
    RELEASE loSbRequestBody
    RELEASE loSbResponseBody
    RELEASE loJsonResponse
    CANCEL
ENDIF

* Sample response JSON is shown below.

* Iterate over each invoice and get some information from each..
lnNumInvoices = loJsonResponse.SizeOfArray("invoices")
i = 0
DO WHILE i < lnNumInvoices
    loJsonResponse.I = i
    ? "Invoice ID: " + loJsonResponse.StringOf("invoices[i].id")
    ? "Shipping First Name: " + loJsonResponse.StringOf("invoices[i].shipping_info.first_name")
    j = 0
    lnNumBillingInfo = loJsonResponse.SizeOfArray("invoices[i].billing_info")
    DO WHILE j < lnNumBillingInfo
        loJsonResponse.J = j
        ? "billing_info email: " + loJsonResponse.StringOf("invoices[i].billing_info[j].email")
        j = j + 1
    ENDDO
    lnNumLinks = loJsonResponse.SizeOfArray("invoices[i].links")
    j = 0
    DO WHILE j < lnNumLinks
        loJsonResponse.J = j
        ? "link: " + loJsonResponse.StringOf("invoices[i].links[j].href")
        j = j + 1
    ENDDO
    ? "----"
    i = i + 1
ENDDO

? "Success."

* A successful response looks like this:

* { 
*   "total_count": 2,
*   "invoices": [
*     { 
*       "id": "INV2-XV4B-736P-PLVN-SZCE",
*       "number": "0002",
*       "status": "DRAFT",
*       "merchant_info": { 
*         "email": "smith-facilitator@chilkatsoft.com"
*       },
*       "billing_info": [
*         { 
*           "email": "smith-buyer@chilkatsoft.com"
*         }
*       ],
*       "shipping_info": { 
*         "email": "smith-buyer@chilkatsoft.com",
*         "first_name": "Sally",
*         "last_name": "Patient",
*         "business_name": "Not applicable"
*       },
*       "invoice_date": "2016-11-15 PST",
*       "payment_term": { 
*         "due_date": "2016-12-30 PST"
*       },
*       "note": "Medical Invoice 16 Jul, 2013 PST",
*       "total_amount": { 
*         "currency": "USD",
*         "value": "500.00"
*       },
*       "metadata": { 
*         "created_date": "2016-11-15 08:09:21 PST"
*       },
*       "paid_amount": { 
*         "paypal": { 
*           "currency": "USD",
*           "value": "0.00"
*         },
*         "other": { 
*           "currency": "USD",
*           "value": "0.00"
*         }
*       },
*       "refunded_amount": { 
*         "paypal": { 
*           "currency": "USD",
*           "value": "0.00"
*         },
*         "other": { 
*           "currency": "USD",
*           "value": "0.00"
*         }
*       },
*       "links": [
*         { 
*           "rel": "self",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE",
*           "method": "GET"
*         },
*         { 
*           "rel": "send",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE/send",
*           "method": "POST"
*         },
*         { 
*           "rel": "update",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE/update",
*           "method": "PUT"
*         },
*         { 
*           "rel": "delete",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE",
*           "method": "DELETE"
*         }
*       ]
*     },
*     { 
*       "id": "INV2-ZG2H-HKAW-PMWU-N6ZR",
*       "number": "0001",
*       "status": "SENT",
*       "merchant_info": { 
*         "email": "smith-facilitator@chilkatsoft.com"
*       },
*       "billing_info": [
*         { 
*           "email": "smith-buyer@chilkatsoft.com"
*         }
*       ],
*       "shipping_info": { 
*         "email": "smith-buyer@chilkatsoft.com",
*         "first_name": "Sally",
*         "last_name": "Patient",
*         "business_name": "Not applicable"
*       },
*       "invoice_date": "2016-11-15 PST",
*       "payment_term": { 
*         "due_date": "2016-12-30 PST"
*       },
*       "note": "Medical Invoice 16 Jul, 2013 PST",
*       "total_amount": { 
*         "currency": "USD",
*         "value": "500.00"
*       },
*       "metadata": { 
*         "created_date": "2016-11-15 06:17:03 PST",
*         "payer_view_url": "https://www.sandbox.paypal.com/cgi_bin/webscr?cmd=_pay-inv&viewtype=altview&id=INV2-ZG2H-HKAW-PMWU-N6ZR"
*       },
*       "paid_amount": { 
*         "paypal": { 
*           "currency": "USD",
*           "value": "0.00"
*         },
*         "other": { 
*           "currency": "USD",
*           "value": "0.00"
*         }
*       },
*       "refunded_amount": { 
*         "paypal": { 
*           "currency": "USD",
*           "value": "0.00"
*         },
*         "other": { 
*           "currency": "USD",
*           "value": "0.00"
*         }
*       },
*       "links": [
*         { 
*           "rel": "self",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR",
*           "method": "GET"
*         },
*         { 
*           "rel": "update",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/update",
*           "method": "PUT"
*         },
*         { 
*           "rel": "cancel",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/remind",
*           "method": "POST"
*         },
*         { 
*           "rel": "remind",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/cancel",
*           "method": "POST"
*         },
*         { 
*           "rel": "record-payment",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/record-payment",
*           "method": "POST"
*         },
*         { 
*           "rel": "qr-code",
*           "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/qr-code",
*           "method": "GET"
*         }
*       ]
*     }
*   ]
* }
* 

RELEASE loJsonToken
RELEASE loSbAuth
RELEASE loRest
RELEASE loJson
RELEASE loSbRequestBody
RELEASE loSbResponseBody
RELEASE loJsonResponse


 

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