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Xbase++

PayPal Create Invoice

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Creates a draft invoice.

Chilkat Xbase++ Downloads

Xbase++
LOCAL nSuccess
LOCAL oJsonToken
LOCAL oSbAuth
LOCAL oRest
LOCAL nBAutoReconnect
LOCAL oJson
LOCAL oSbRequestBody
LOCAL oSbResponseBody
LOCAL oJsonResponse

nSuccess := 0

//  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)
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 != 1)
    ? 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..
//  ----------------------------------------------------------------------------------------------

//  First create a JSON invoice:
oJson := CreateObject("Chilkat.JsonObject")
oJson:EmitCompact := 0
oJson:UpdateString("merchant_info.email", "frank-facilitator@example.com")
oJson:UpdateString("merchant_info.first_name", "Frank")
oJson:UpdateString("merchant_info.last_name", "Facilitator")
oJson:UpdateString("merchant_info.business_name", "Medical Professionals, LLC")
oJson:UpdateString("merchant_info.phone.country_code", "001")
oJson:UpdateString("merchant_info.phone.national_number", "5032141716")
oJson:UpdateString("merchant_info.address.line1", "1234 Main St.")
oJson:UpdateString("merchant_info.address.city", "Portland")
oJson:UpdateString("merchant_info.address.state", "OR")
oJson:UpdateString("merchant_info.address.postal_code", "97217")
oJson:UpdateString("merchant_info.address.country_code", "US")
oJson:UpdateString("billing_info[0].email", "frank-buyer@somewhere.com")
oJson:UpdateString("items[0].name", "Sutures")
oJson:UpdateInt("items[0].quantity", 100)
oJson:UpdateString("items[0].unit_price.currency", "USD")
oJson:UpdateString("items[0].unit_price.value", "5")
oJson:UpdateString("note", "Medical Invoice 16 Jul, 2013 PST")
oJson:UpdateString("payment_term.term_type", "NET_45")
oJson:UpdateString("shipping_info.first_name", "Sally")
oJson:UpdateString("shipping_info.last_name", "Patient")
oJson:UpdateString("shipping_info.business_name", "Not applicable")
oJson:UpdateString("shipping_info.phone.country_code", "001")
oJson:UpdateString("shipping_info.phone.national_number", "5039871234")
oJson:UpdateString("shipping_info.address.line1", "1234 Broad St.")
oJson:UpdateString("shipping_info.address.city", "Portland")
oJson:UpdateString("shipping_info.address.state", "OR")
oJson:UpdateString("shipping_info.address.postal_code", "97216")
oJson:UpdateString("shipping_info.address.country_code", "US")

? oJson: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 }'

oJson:EmitCompact := 1
oSbRequestBody := CreateObject("Chilkat.StringBuilder")
oSbResponseBody := CreateObject("Chilkat.StringBuilder")

oRest:AddHeader("Content-Type", "application/json")
oRest:AddHeader("Authorization", oSbAuth:GetAsString())
oJson:EmitSb(oSbRequestBody)

nSuccess := oRest:FullRequestSb("POST", "/v1/invoicing/invoices", oSbRequestBody, oSbResponseBody)
IF (nSuccess != 1)
    ? oRest:LastErrorText
    oJsonToken:destroy()
    oSbAuth:destroy()
    oRest:destroy()
    oJson:destroy()
    oSbRequestBody:destroy()
    oSbResponseBody:destroy()
    RETURN
ENDIF

//  We should have some sort of JSON response.  It could be successful, or an error.
oJsonResponse := CreateObject("Chilkat.JsonObject")
oJsonResponse:EmitCompact := 0
oJsonResponse:LoadSb(oSbResponseBody)

? "Response Status Code = " + Str(oRest:ResponseStatusCode)

//  Did we get a 201 success response?
IF (oRest:ResponseStatusCode != 201)
    //  Show the JSON response body
    ? oJsonResponse:Emit()

    ? oRest:LastRequestStartLine
    ? oRest:LastRequestHeader
    ? "Failed."
    oJsonToken:destroy()
    oSbAuth:destroy()
    oRest:destroy()
    oJson:destroy()
    oSbRequestBody:destroy()
    oSbResponseBody:destroy()
    oJsonResponse:destroy()
    RETURN
ENDIF

//  Show a few parts of the JSON response
? "id: " + oJsonResponse:StringOf("id")
? "number: " + oJsonResponse:StringOf("number")
? "template_id: " + oJsonResponse:StringOf("template_id")
? "status: " + oJsonResponse:StringOf("status")

//  Show the full JSON response.
? oJsonResponse:Emit()
? "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"
//  	    }
//  	  ]
//  	}
//

oJsonToken:destroy()
oSbAuth:destroy()
oRest:destroy()
oJson:destroy()
oSbRequestBody:destroy()
oSbResponseBody:destroy()
oJsonResponse:destroy()