Delphi DLL
Delphi DLL
PayPal - Show Invoice Details
See more PayPal Examples
Shows details for a PayPal invoice, by ID.See also PayPal Show Invoice Details REST API Reference
Chilkat Delphi DLL Downloads
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, StringBuilder, Rest, JsonObject;
...
procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
jsonToken: HCkJsonObject;
sbAuth: HCkStringBuilder;
rest: HCkRest;
bAutoReconnect: Boolean;
invoiceId: PWideChar;
sbPath: HCkStringBuilder;
sbJsonResponse: HCkStringBuilder;
json: HCkJsonObject;
numItems: Integer;
i: Integer;
begin
success := False;
// 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)
jsonToken := CkJsonObject_Create();
CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/paypal.json');
// Build the Authorization request header field value.
sbAuth := CkStringBuilder_Create();
// token_type should be "Bearer"
CkStringBuilder_Append(sbAuth,CkJsonObject__stringOf(jsonToken,'token_type'));
CkStringBuilder_Append(sbAuth,' ');
CkStringBuilder_Append(sbAuth,CkJsonObject__stringOf(jsonToken,'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.
rest := CkRest_Create();
bAutoReconnect := True;
success := CkRest_Connect(rest,'api.sandbox.paypal.com',443,True,bAutoReconnect);
if (success <> True) then
begin
Memo1.Lines.Add(CkRest__lastErrorText(rest));
Exit;
end;
// ----------------------------------------------------------------------------------------------
// 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..
// ----------------------------------------------------------------------------------------------
CkRest_AddHeader(rest,'Authorization',CkStringBuilder__getAsString(sbAuth));
invoiceId := 'INV2-XV4B-736P-PLVN-SZCE';
sbPath := CkStringBuilder_Create();
CkStringBuilder_Append(sbPath,'/v1/invoicing/invoices/');
CkStringBuilder_Append(sbPath,invoiceId);
// Send the GET request and get the JSON response.
sbJsonResponse := CkStringBuilder_Create();
success := CkRest_FullRequestNoBodySb(rest,'GET',CkStringBuilder__getAsString(sbPath),sbJsonResponse);
if (success <> True) then
begin
Memo1.Lines.Add(CkRest__lastErrorText(rest));
Exit;
end;
json := CkJsonObject_Create();
CkJsonObject_putEmitCompact(json,False);
CkJsonObject_LoadSb(json,sbJsonResponse);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
// Did we get a 200 success response?
if (CkRest_getResponseStatusCode(rest) <> 200) then
begin
Memo1.Lines.Add(CkJsonObject__emit(json));
Memo1.Lines.Add('Failed.');
Exit;
end;
// Sample response JSON is shown below.
// Get some information..
Memo1.Lines.Add('email: ' + CkJsonObject__stringOf(json,'merchant_info.email'));
Memo1.Lines.Add('business_name: ' + CkJsonObject__stringOf(json,'merchant_info.business_name'));
numItems := CkJsonObject_SizeOfArray(json,'items');
i := 0;
while i < numItems do
begin
CkJsonObject_putI(json,i);
Memo1.Lines.Add('item name: ' + CkJsonObject__stringOf(json,'items[i].name'));
Memo1.Lines.Add('item quantity: ' + CkJsonObject__stringOf(json,'items[i].quantity'));
Memo1.Lines.Add('item currency: ' + CkJsonObject__stringOf(json,'items[i].unit_price.currency'));
Memo1.Lines.Add('item value: ' + CkJsonObject__stringOf(json,'items[i].unit_price.value'));
Memo1.Lines.Add('----');
i := i + 1;
end;
Memo1.Lines.Add('Success.');
// ---------------------------------------------------
// A sample response:
// {
// "id": "INV2-XV4B-736P-PLVN-SZCE",
// "number": "0002",
// "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 08:09:21 PST"
// },
// "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"
// }
// ]
// }
//
CkJsonObject_Dispose(jsonToken);
CkStringBuilder_Dispose(sbAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbJsonResponse);
CkJsonObject_Dispose(json);
end;