(Visual Basic 6.0) PayPal - Update Invoice

Update a PayPal invoice.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

' 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)
Dim jsonToken As New ChilkatJsonObject
success = jsonToken.LoadFile("qa_data/tokens/paypal.json")

' Build the Authorization request header field value.
Dim sbAuth As New ChilkatStringBuilder
' token_type should be "Bearer"
success = sbAuth.Append(jsonToken.StringOf("token_type"))
success = sbAuth.Append(" ")
success = sbAuth.Append(jsonToken.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.
Dim rest As New ChilkatRest
Dim bAutoReconnect As Long
bAutoReconnect = 1
Dim success As Long
success = rest.Connect("api.sandbox.paypal.com",443,1,bAutoReconnect)
If (success <> 1) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

' ----------------------------------------------------------------------------------------------
' 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..
' ----------------------------------------------------------------------------------------------

' First create the JSON with updated information:

Dim json As New ChilkatJsonObject
json.EmitCompact = 0
success = json.UpdateString("merchant_info.email","smith-facilitator@chilkatsoft.com")
success = json.UpdateString("merchant_info.first_name","Joe")
success = json.UpdateString("merchant_info.last_name","Facilitator")
success = json.UpdateString("merchant_info.business_name","Medical Professionals, LLC")
success = json.UpdateString("merchant_info.phone.country_code","001")
success = json.UpdateString("merchant_info.phone.national_number","5032141716")
success = json.UpdateString("merchant_info.address.line1","1234 Main St.")
success = json.UpdateString("merchant_info.address.city","Portland")
success = json.UpdateString("merchant_info.address.state","OR")
success = json.UpdateString("merchant_info.address.postal_code","97217")
success = json.UpdateString("merchant_info.address.country_code","US")
success = json.UpdateString("billing_info[0].email","smith-buyer@chilkatsoft.com")
success = json.UpdateString("shipping_info.first_name","Sally")
success = json.UpdateString("shipping_info.last_name","Patient")
success = json.UpdateString("shipping_info.business_name","Not applicable")
success = json.UpdateString("shipping_info.phone.country_code","001")
success = json.UpdateString("shipping_info.phone.national_number","5039871234")
success = json.UpdateString("shipping_info.address.line1","1234 Broad St.")
success = json.UpdateString("shipping_info.address.city","Portland")
success = json.UpdateString("shipping_info.address.state","OR")
success = json.UpdateString("shipping_info.address.postal_code","97216")
success = json.UpdateString("shipping_info.address.country_code","US")
success = json.UpdateString("items[0].name","Sutures")
' We are updating the quantity from 100.0 to 200.0
' Note: The UpdateNumber method is added in v9.5.0.65
success = json.UpdateNumber("items[0].quantity","200.0")
success = json.UpdateString("items[0].unit_price.currency","USD")
success = json.UpdateString("items[0].unit_price.value","5.00")
success = json.UpdateString("payment_term.term_type","NET_45")
success = json.UpdateString("payment_term.due_date","2016-12-30 PST")
success = json.UpdateString("note","Medical Invoice 16 Jul, 2013 PST")

' The JSON created by the above code is this:

' 	{ 
' 	  "merchant_info": { 
' 	    "email": "smith-facilitator@chilkatsoft.com",
' 	    "first_name": "Joe",
' 	    "last_name": "Facilitator",
' 	    "business_name": "Medical Professionals, LLC",
' 	    "phone": { 
' 	      "country_code": "001",
' 	      "national_number": "5032141716"
' 	    },
' 	    "address": { 
' 	      "line1": "1234 Main St.",
' 	      "city": "Portland",
' 	      "state": "OR",
' 	      "postal_code": "97217",
' 	      "country_code": "US"
' 	    }
' 	  },
' 	  "billing_info": [
' 	    { 
' 	      "email": "smith-buyer@chilkatsoft.com"
' 	    }
' 	  ],
' 	  "shipping_info": { 
' 	    "first_name": "Sally",
' 	    "last_name": "Patient",
' 	    "business_name": "Not applicable",
' 	    "phone": { 
' 	      "country_code": "001",
' 	      "national_number": "5039871234"
' 	    },
' 	    "address": { 
' 	      "line1": "1234 Broad St.",
' 	      "city": "Portland",
' 	      "state": "OR",
' 	      "postal_code": "97216",
' 	      "country_code": "US"
' 	    }
' 	  },
' 	  "items": [
' 	    { 
' 	      "name": "Sutures",
' 	      "quantity": 200.0,
' 	      "unit_price": { 
' 	        "currency": "USD",
' 	        "value": "5.00"
' 	      }
' 	    }
' 	  ],
' 	  "payment_term": { 
' 	    "term_type": "NET_45",
' 	    "due_date": "2016-12-30 PST"
' 	  },
' 	  "note": "Medical Invoice 16 Jul, 2013 PST"
' 	}

success = rest.AddHeader("Authorization",sbAuth.GetAsString())
success = rest.AddHeader("Content-Type","application/json")

Dim invoiceId As String
invoiceId = "INV2-XV4B-736P-PLVN-SZCE"

Dim sbPath As New ChilkatStringBuilder
success = sbPath.Append("/v1/invoicing/invoices/")
success = sbPath.Append(invoiceId)

' Send the PUT request containign the JSON in the request body, and get the JSON response.
Dim sbJsonRequest As New ChilkatStringBuilder
success = json.EmitSb(sbJsonRequest)
Dim sbJsonResponse As New ChilkatStringBuilder
success = rest.FullRequestSb("PUT",sbPath.GetAsString(),sbJsonRequest,sbJsonResponse)
If (success <> 1) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

success = json.LoadSb(sbJsonResponse)

Debug.Print "Response Status Code = " & rest.ResponseStatusCode

' Did we get a 200 success response?
If (rest.ResponseStatusCode <> 200) Then
    Debug.Print json.Emit()
    Debug.Print "Failed."
    Exit Sub
End If

' Sample response JSON is shown below.

' Get some information..
Debug.Print "email: " & json.StringOf("merchant_info.email")
Debug.Print "business_name: " & json.StringOf("merchant_info.business_name")

Dim numItems As Long
numItems = json.SizeOfArray("items")
Dim i As Long
i = 0
Do While i < numItems
    json.I = i
    Debug.Print "item name: " & json.StringOf("items[i].name")
    Debug.Print "item quantity: " & json.StringOf("items[i].quantity")
    Debug.Print "item currency: " & json.StringOf("items[i].unit_price.currency")
    Debug.Print "item value: " & json.StringOf("items[i].unit_price.value")
    Debug.Print "----"
    i = i + 1
Loop

Debug.Print "Success."