(VB.NET) PayPal Create Invoice

See more PayPal Examples

Creates a draft invoice.

For more information, see https://developer.paypal.com/docs/api/invoicing/v2/#invoices_create

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' 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)
Dim jsonToken As New Chilkat.JsonObject
jsonToken.LoadFile("qa_data/tokens/paypal.json")

' Build the Authorization request header field value.
Dim sbAuth As New Chilkat.StringBuilder
' token_type should be "Bearer"
sbAuth.Append(jsonToken.StringOf("token_type"))
sbAuth.Append(" ")
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 Chilkat.Rest
Dim bAutoReconnect As Boolean = True
Dim success As Boolean = rest.Connect("api.sandbox.paypal.com",443,True,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(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 a JSON invoice:
Dim json As New Chilkat.JsonObject
json.EmitCompact = False
json.UpdateString("merchant_info.email","frank-facilitator@example.com")
json.UpdateString("merchant_info.first_name","Frank")
json.UpdateString("merchant_info.last_name","Facilitator")
json.UpdateString("merchant_info.business_name","Medical Professionals, LLC")
json.UpdateString("merchant_info.phone.country_code","001")
json.UpdateString("merchant_info.phone.national_number","5032141716")
json.UpdateString("merchant_info.address.line1","1234 Main St.")
json.UpdateString("merchant_info.address.city","Portland")
json.UpdateString("merchant_info.address.state","OR")
json.UpdateString("merchant_info.address.postal_code","97217")
json.UpdateString("merchant_info.address.country_code","US")
json.UpdateString("billing_info[0].email","frank-buyer@somewhere.com")
json.UpdateString("items[0].name","Sutures")
json.UpdateInt("items[0].quantity",100)
json.UpdateString("items[0].unit_price.currency","USD")
json.UpdateString("items[0].unit_price.value","5")
json.UpdateString("note","Medical Invoice 16 Jul, 2013 PST")
json.UpdateString("payment_term.term_type","NET_45")
json.UpdateString("shipping_info.first_name","Sally")
json.UpdateString("shipping_info.last_name","Patient")
json.UpdateString("shipping_info.business_name","Not applicable")
json.UpdateString("shipping_info.phone.country_code","001")
json.UpdateString("shipping_info.phone.national_number","5039871234")
json.UpdateString("shipping_info.address.line1","1234 Broad St.")
json.UpdateString("shipping_info.address.city","Portland")
json.UpdateString("shipping_info.address.state","OR")
json.UpdateString("shipping_info.address.postal_code","97216")
json.UpdateString("shipping_info.address.country_code","US")

Debug.WriteLine(json.Emit())

' The JSON invoice created by the above code:

' 	{ 
' 	  "merchant_info": { 
' 	    "email": "frank-facilitator@example.com",
' 	    "first_name": "Frank",
' 	    "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": "frank-buyer@somewhere.com"
' 	    }
' 	  ],
' 	  "items": [ 
' 	    { 
' 	      "name": "Sutures",
' 	      "quantity": 100,
' 	      "unit_price": { 
' 	        "currency": "USD",
' 	        "value": "5"
' 	      }
' 	    }
' 	  ],
' 	  "note": "Medical Invoice 16 Jul, 2013 PST",
' 	  "payment_term": { 
' 	    "term_type": "NET_45"
' 	  },
' 	  "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"
' 	    }
' 	  }
' 	}

' Send the POST equivalent to this CURL command:

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

json.EmitCompact = True
Dim sbRequestBody As New Chilkat.StringBuilder
Dim sbResponseBody As New Chilkat.StringBuilder

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

success = rest.FullRequestSb("POST","/v1/invoicing/invoices",sbRequestBody,sbResponseBody)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' We should have some sort of JSON response.  It could be successful, or an error.
Dim jsonResponse As New Chilkat.JsonObject
jsonResponse.EmitCompact = False
jsonResponse.LoadSb(sbResponseBody)

Debug.WriteLine("Response Status Code = " & rest.ResponseStatusCode)

' Did we get a 201 success response?
If (rest.ResponseStatusCode <> 201) Then
    ' Show the JSON response body
    Debug.WriteLine(jsonResponse.Emit())

    Debug.WriteLine(rest.LastRequestStartLine)
    Debug.WriteLine(rest.LastRequestHeader)
    Debug.WriteLine("Failed.")
    Exit Sub
End If


' Show a few parts of the JSON response
Debug.WriteLine("id: " & jsonResponse.StringOf("id"))
Debug.WriteLine("number: " & jsonResponse.StringOf("number"))
Debug.WriteLine("template_id: " & jsonResponse.StringOf("template_id"))
Debug.WriteLine("status: " & jsonResponse.StringOf("status"))

' Show the full JSON response.
Debug.WriteLine(jsonResponse.Emit())
Debug.WriteLine("Success.")

' A successful response looks like this:

' 	{ 
' 	  "id": "INV2-ZG2H-HKAW-PMWU-N6ZR",
' 	  "number": "0001",
' 	  "template_id": "TEMP-8HS37702UW384535K",
' 	  "status": "DRAFT",
' 	  "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": 100.0,
' 	      "unit_price": { 
' 	        "currency": "USD",
' 	        "value": "5.00"
' 	      }
' 	    }
' 	  ],
' 	  "invoice_date": "2016-11-15 PST",
' 	  "payment_term": { 
' 	    "term_type": "NET_45",
' 	    "due_date": "2016-12-30 PST"
' 	  },
' 	  "tax_calculated_after_discount": false,
' 	  "tax_inclusive": false,
' 	  "note": "Medical Invoice 16 Jul, 2013 PST",
' 	  "total_amount": { 
' 	    "currency": "USD",
' 	    "value": "500.00"
' 	  },
' 	  "metadata": { 
' 	    "created_date": "2016-11-15 06:17:03 PST"
' 	  },
' 	  "links": [ 
' 	    { 
' 	      "rel": "self",
' 	      "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR",
' 	      "method": "GET"
' 	    },
' 	    { 
' 	      "rel": "send",
' 	      "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/send",
' 	      "method": "POST"
' 	    },
' 	    { 
' 	      "rel": "update",
' 	      "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/update",
' 	      "method": "PUT"
' 	    },
' 	    { 
' 	      "rel": "delete",
' 	      "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR",
' 	      "method": "DELETE"
' 	    }
' 	  ]
' 	}
'