(Delphi DLL) Quickbooks Create an Invoice

Demonstrates how to create an invoice via the Quickbooks REST API.

For more information, see https://www.developer.intuit.com/app/developer/qbo/docs/api/accounting/most-commonly-used/invoice#create-an-invoice

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

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
jsonToken: HCkJsonObject;
success: Boolean;
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
success: Boolean;
sbAuth: HCkStringBuilder;
jsonReq: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jsonResponse: HCkJsonObject;
LineNum: Integer;
Amount: PWideChar;
SalesItemLineDetailTaxCodeRefValue: PWideChar;
SalesItemLineDetailItemRefName: PWideChar;
SalesItemLineDetailItemRefValue: PWideChar;
Id: PWideChar;
DetailType: PWideChar;
DefinitionId: PWideChar;
invType: PWideChar;
Name: PWideChar;
InvoiceDocNumber: PWideChar;
InvoiceSyncToken: PWideChar;
InvoiceDomain: PWideChar;
InvoiceBalance: PWideChar;
InvoiceBillAddrCity: PWideChar;
InvoiceBillAddrLine1: PWideChar;
InvoiceBillAddrPostalCode: PWideChar;
InvoiceBillAddrLat: PWideChar;
InvoiceBillAddrLong: PWideChar;
InvoiceBillAddrCountrySubDivisionCode: PWideChar;
InvoiceBillAddrId: PWideChar;
InvoiceTxnDate: PWideChar;
InvoiceTotalAmt: PWideChar;
InvoiceCustomerRefName: PWideChar;
InvoiceCustomerRefValue: PWideChar;
InvoiceShipAddrCity: PWideChar;
InvoiceShipAddrLine1: PWideChar;
InvoiceShipAddrPostalCode: PWideChar;
InvoiceShipAddrLat: PWideChar;
InvoiceShipAddrLong: PWideChar;
InvoiceShipAddrCountrySubDivisionCode: PWideChar;
InvoiceShipAddrId: PWideChar;
InvoiceDueDate: PWideChar;
InvoicePrintStatus: PWideChar;
InvoiceDeposit: Integer;
InvoiceSparse: Boolean;
InvoiceEmailStatus: PWideChar;
InvoiceApplyTaxAfterDiscount: Boolean;
InvoiceId: PWideChar;
InvoiceTxnTaxDetailTotalTax: Integer;
InvoiceMetaDataCreateTime: PWideChar;
InvoiceMetaDataLastUpdatedTime: PWideChar;
time: PWideChar;
i: Integer;
count_i: Integer;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// First get our previously obtained OAuth2 access token.
jsonToken := CkJsonObject_Create();
success := CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/qb-access-token.json');

rest := CkRest_Create();

// Connect to the REST server.
bTls := True;
port := 443;
bAutoReconnect := True;
success := CkRest_Connect(rest,'sandbox-quickbooks.api.intuit.com',port,bTls,bAutoReconnect);

sbAuth := CkStringBuilder_Create();
CkStringBuilder_Append(sbAuth,'Bearer ');
CkStringBuilder_Append(sbAuth,CkJsonObject__stringOf(jsonToken,'access_token'));
CkRest_putAuthorization(rest,CkStringBuilder__getAsString(sbAuth));

// --------------------------------------------------------------------------
// Note: The above code to setup the initial REST connection
// can be done once.  After connecting, any number of REST calls can be made.
// If the connection is lost, the next REST method call will automatically
// reconnect if needed.
// --------------------------------------------------------------------------

// Create the following JSON:

// {
//   "Line": [
//     {
//       "DetailType": "SalesItemLineDetail",
//       "Amount": 100.0,
//       "SalesItemLineDetail": {
//         "ItemRef": {
//           "name": "Services",
//           "value": "1"
//         }
//       }
//     }
//   ],
//   "CustomerRef": {
//     "value": "1"
//   }
// }
// 
// Use the this online tool to generate the code from sample JSON: 
// Generate Code to Create JSON

jsonReq := CkJsonObject_Create();
CkJsonObject_UpdateString(jsonReq,'Line[0].DetailType','SalesItemLineDetail');
CkJsonObject_UpdateNumber(jsonReq,'Line[0].Amount','100.0');
CkJsonObject_UpdateString(jsonReq,'Line[0].SalesItemLineDetail.ItemRef.name','Services');
CkJsonObject_UpdateString(jsonReq,'Line[0].SalesItemLineDetail.ItemRef.value','1');
CkJsonObject_UpdateString(jsonReq,'CustomerRef.value','1');

sbRequestBody := CkStringBuilder_Create();
CkJsonObject_EmitSb(jsonReq,sbRequestBody);

CkRest_AddHeader(rest,'Content-Type','application/json');
CkRest_AddHeader(rest,'Accept','application/json');
CkRest_putAllowHeaderFolding(rest,False);

sbResponseBody := CkStringBuilder_Create();
success := CkRest_FullRequestSb(rest,'POST','/v3/company/<realmID>/invoice',sbRequestBody,sbResponseBody);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

respStatusCode := CkRest_getResponseStatusCode(rest);

// Success is indicated by a 200 response status code.
Memo1.Lines.Add('response status code = ' + IntToStr(respStatusCode));

jsonResponse := CkJsonObject_Create();
CkJsonObject_LoadSb(jsonResponse,sbResponseBody);
CkJsonObject_putEmitCompact(jsonResponse,False);
Memo1.Lines.Add(CkJsonObject__emit(jsonResponse));

if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

// Sample output...
// (See the parsing code below..)
// 
// Use the this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

// {
//   "Invoice": {
//     "DocNumber": "1069",
//     "SyncToken": "0",
//     "domain": "QBO",
//     "Balance": 100.0,
//     "BillAddr": {
//       "City": "Bayshore",
//       "Line1": "4581 Finch St.",
//       "PostalCode": "94326",
//       "Lat": "INVALID",
//       "Long": "INVALID",
//       "CountrySubDivisionCode": "CA",
//       "Id": "2"
//     },
//     "TxnDate": "2015-07-24",
//     "TotalAmt": 100.0,
//     "CustomerRef": {
//       "name": "Amy's Bird Sanctuary",
//       "value": "1"
//     },
//     "ShipAddr": {
//       "City": "Bayshore",
//       "Line1": "4581 Finch St.",
//       "PostalCode": "94326",
//       "Lat": "INVALID",
//       "Long": "INVALID",
//       "CountrySubDivisionCode": "CA",
//       "Id": "109"
//     },
//     "LinkedTxn": [
//     ],
//     "DueDate": "2015-08-23",
//     "PrintStatus": "NeedToPrint",
//     "Deposit": 0,
//     "sparse": false,
//     "EmailStatus": "NotSet",
//     "Line": [
//       {
//         "LineNum": 1,
//         "Amount": 100.0,
//         "SalesItemLineDetail": {
//           "TaxCodeRef": {
//             "value": "NON"
//           },
//           "ItemRef": {
//             "name": "Services",
//             "value": "1"
//           }
//         },
//         "Id": "1",
//         "DetailType": "SalesItemLineDetail"
//       },
//       {
//         "DetailType": "SubTotalLineDetail",
//         "Amount": 100.0,
//         "SubTotalLineDetail": {}
//       }
//     ],
//     "ApplyTaxAfterDiscount": false,
//     "CustomField": [
//       {
//         "DefinitionId": "1",
//         "Type": "StringType",
//         "Name": "Crew #"
//       }
//     ],
//     "Id": "238",
//     "TxnTaxDetail": {
//       "TotalTax": 0
//     },
//     "MetaData": {
//       "CreateTime": "2015-07-24T10:33:39-07:00",
//       "LastUpdatedTime": "2015-07-24T10:33:39-07:00"
//     }
//   },
//   "time": "2015-07-24T10:33:39.11-07:00"
// }
// 

InvoiceDocNumber := CkJsonObject__stringOf(jsonResponse,'Invoice.DocNumber');
InvoiceSyncToken := CkJsonObject__stringOf(jsonResponse,'Invoice.SyncToken');
InvoiceDomain := CkJsonObject__stringOf(jsonResponse,'Invoice.domain');
InvoiceBalance := CkJsonObject__stringOf(jsonResponse,'Invoice.Balance');
InvoiceBillAddrCity := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.City');
InvoiceBillAddrLine1 := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.Line1');
InvoiceBillAddrPostalCode := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.PostalCode');
InvoiceBillAddrLat := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.Lat');
InvoiceBillAddrLong := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.Long');
InvoiceBillAddrCountrySubDivisionCode := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.CountrySubDivisionCode');
InvoiceBillAddrId := CkJsonObject__stringOf(jsonResponse,'Invoice.BillAddr.Id');
InvoiceTxnDate := CkJsonObject__stringOf(jsonResponse,'Invoice.TxnDate');
InvoiceTotalAmt := CkJsonObject__stringOf(jsonResponse,'Invoice.TotalAmt');
InvoiceCustomerRefName := CkJsonObject__stringOf(jsonResponse,'Invoice.CustomerRef.name');
InvoiceCustomerRefValue := CkJsonObject__stringOf(jsonResponse,'Invoice.CustomerRef.value');
InvoiceShipAddrCity := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.City');
InvoiceShipAddrLine1 := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.Line1');
InvoiceShipAddrPostalCode := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.PostalCode');
InvoiceShipAddrLat := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.Lat');
InvoiceShipAddrLong := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.Long');
InvoiceShipAddrCountrySubDivisionCode := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.CountrySubDivisionCode');
InvoiceShipAddrId := CkJsonObject__stringOf(jsonResponse,'Invoice.ShipAddr.Id');
InvoiceDueDate := CkJsonObject__stringOf(jsonResponse,'Invoice.DueDate');
InvoicePrintStatus := CkJsonObject__stringOf(jsonResponse,'Invoice.PrintStatus');
InvoiceDeposit := CkJsonObject_IntOf(jsonResponse,'Invoice.Deposit');
InvoiceSparse := CkJsonObject_BoolOf(jsonResponse,'Invoice.sparse');
InvoiceEmailStatus := CkJsonObject__stringOf(jsonResponse,'Invoice.EmailStatus');
InvoiceApplyTaxAfterDiscount := CkJsonObject_BoolOf(jsonResponse,'Invoice.ApplyTaxAfterDiscount');
InvoiceId := CkJsonObject__stringOf(jsonResponse,'Invoice.Id');
InvoiceTxnTaxDetailTotalTax := CkJsonObject_IntOf(jsonResponse,'Invoice.TxnTaxDetail.TotalTax');
InvoiceMetaDataCreateTime := CkJsonObject__stringOf(jsonResponse,'Invoice.MetaData.CreateTime');
InvoiceMetaDataLastUpdatedTime := CkJsonObject__stringOf(jsonResponse,'Invoice.MetaData.LastUpdatedTime');
time := CkJsonObject__stringOf(jsonResponse,'time');
i := 0;
count_i := CkJsonObject_SizeOfArray(jsonResponse,'Invoice.LinkedTxn');
while i < count_i do
  begin
    CkJsonObject_putI(jsonResponse,i);
    i := i + 1;
  end;

i := 0;
count_i := CkJsonObject_SizeOfArray(jsonResponse,'Invoice.Line');
while i < count_i do
  begin
    CkJsonObject_putI(jsonResponse,i);
    LineNum := CkJsonObject_IntOf(jsonResponse,'Invoice.Line[i].LineNum');
    Amount := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].Amount');
    SalesItemLineDetailTaxCodeRefValue := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].SalesItemLineDetail.TaxCodeRef.value');
    SalesItemLineDetailItemRefName := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].SalesItemLineDetail.ItemRef.name');
    SalesItemLineDetailItemRefValue := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].SalesItemLineDetail.ItemRef.value');
    Id := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].Id');
    DetailType := CkJsonObject__stringOf(jsonResponse,'Invoice.Line[i].DetailType');
    i := i + 1;
  end;

i := 0;
count_i := CkJsonObject_SizeOfArray(jsonResponse,'Invoice.CustomField');
while i < count_i do
  begin
    CkJsonObject_putI(jsonResponse,i);
    DefinitionId := CkJsonObject__stringOf(jsonResponse,'Invoice.CustomField[i].DefinitionId');
    invType := CkJsonObject__stringOf(jsonResponse,'Invoice.CustomField[i].Type');
    Name := CkJsonObject__stringOf(jsonResponse,'Invoice.CustomField[i].Name');
    i := i + 1;
  end;

CkJsonObject_Dispose(jsonToken);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbAuth);
CkJsonObject_Dispose(jsonReq);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jsonResponse);

end;