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Pascal (Lazarus/Delphi)

Xero Get Invoices

See more Xero Examples

Get Xero company invoices.

Chilkat Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.HttpResponse,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  jsonToken: TJsonObject;
  resp: THttpResponse;
  jsonResponse: TJsonObject;
  Type: string;
  InvoiceID: string;
  InvoiceNumber: string;
  Reference: string;
  AmountDue: string;
  AmountPaid: string;
  AmountCredited: string;
  IsDiscounted: Boolean;
  HasAttachments: Boolean;
  HasErrors: Boolean;
  ContactContactID: string;
  ContactName: string;
  ContactHasValidationErrors: Boolean;
  DateString: string;
  Date: string;
  DueDateString: string;
  DueDate: string;
  LineAmountTypes: string;
  SubTotal: string;
  TotalTax: string;
  Total: string;
  UpdatedDateUTC: string;
  CurrencyCode: string;
  FullyPaidOnDate: string;
  CurrencyRate: string;
  j: Integer;
  count_j: Integer;
  PaymentID: string;
  Amount: string;
  HasAccount: Boolean;
  HasValidationErrors: Boolean;
  CreditNoteID: string;
  CreditNoteNumber: string;
  ID: string;
  AppliedAmount: string;
  k: Integer;
  count_k: Integer;
  Id: string;
  Status: string;
  ProviderName: string;
  DateTimeUTC: string;
  i: Integer;
  count_i: Integer;

begin
  success := False;

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

  http := THttp.Create;

  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/xero-access-token.json');
  if (success = False) then
    begin
      WriteLn(jsonToken.LastErrorText);
      Exit;
    end;

  http.AuthToken := jsonToken.StringOf('access_token');

  //  Replace the value here with an actual tenant ID obtained from this example:
  //  Get Xero Tenant IDs
  http.SetRequestHeader('Xero-tenant-id','83299b9e-5747-4a14-a18a-a6c94f824eb7');

  http.Accept := 'application/json';

  resp := THttpResponse.Create;
  success := http.HttpNoBody('GET','https://api.xero.com/api.xro/2.0/Invoices',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('Response Status Code: ' + resp.StatusCode);

  jsonResponse := TJsonObject.Create;
  jsonResponse.Load(resp.BodyStr);
  jsonResponse.EmitCompact := False;
  WriteLn(jsonResponse.Emit());

  if (resp.StatusCode <> 200) then
    begin
      WriteLn('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

  //  {
  //    "Id": "bda1f62f-0d63-4178-8d54-e91fd226987a",
  //    "Status": "OK",
  //    "ProviderName": "Chilkat2222",
  //    "DateTimeUTC": "\/Date(1587210234493)\/",
  //    "Invoices": [
  //      {
  //        "Type": "ACCPAY",
  //        "InvoiceID": "0032f627-3156-4d30-9b1c-4d3b994dc921",
  //        "InvoiceNumber": "9871",
  //        "Reference": "",
  //        "Payments": [
  //          {
  //            "PaymentID": "22974891-3689-4694-9ee7-fd2ba917af55",
  //            "Date": "\/Date(1579737600000+0000)\/",
  //            "Amount": 148.50,
  //            "Reference": "Chq 409",
  //            "HasAccount": false,
  //            "HasValidationErrors": false
  //          }
  //        ],
  //        "CreditNotes": [
  //        ],
  //        "Prepayments": [
  //        ],
  //        "Overpayments": [
  //        ],
  //        "AmountDue": 0.00,
  //        "AmountPaid": 148.50,
  //        "AmountCredited": 0.00,
  //        "IsDiscounted": false,
  //        "HasAttachments": false,
  //        "HasErrors": false,
  //        "Contact": {
  //          "ContactID": "d6a384fb-f46f-41a3-8ac7-b7bc9e0b5efa",
  //          "Name": "Melrose Parking",
  //          "Addresses": [
  //          ],
  //          "Phones": [
  //          ],
  //          "ContactGroups": [
  //          ],
  //          "ContactPersons": [
  //          ],
  //          "HasValidationErrors": false
  //        },
  //        "DateString": "2020-01-15T00:00:00",
  //        "Date": "\/Date(1579046400000+0000)\/",
  //        "DueDateString": "2020-01-24T00:00:00",
  //        "DueDate": "\/Date(1579824000000+0000)\/",
  //        "Status": "PAID",
  //        "LineAmountTypes": "Exclusive",
  //        "LineItems": [
  //        ],
  //        "SubTotal": 135.00,
  //        "TotalTax": 13.50,
  //        "Total": 148.50,
  //        "UpdatedDateUTC": "\/Date(1221560931500+0000)\/",
  //        "CurrencyCode": "AUD",
  //        "FullyPaidOnDate": "\/Date(1579737600000+0000)\/"
  //      },
  //      {
  //        "Type": "ACCPAY",
  //        "InvoiceID": "673dd7cc-beb7-4697-83d4-0c47cb400cc2",
  //        "InvoiceNumber": "",
  //        "Reference": "",
  //        "Payments": [
  //          {
  //            "PaymentID": "4d06f609-5200-4364-9c8b-d4379a945252",
  //            "Date": "\/Date(1580688000000+0000)\/",
  //            "Amount": 974.60,
  //            "Reference": "DD # 96013",
  //            "HasAccount": false,
  //            "HasValidationErrors": false
  //          }
  //        ],
  //        "CreditNotes": [
  //          {
  //            "CreditNoteID": "7df8949c-b71f-40c0-bbcf-39f2f450f286",
  //            "CreditNoteNumber": "03391",
  //            "ID": "7df8949c-b71f-40c0-bbcf-39f2f450f286",
  //            "HasErrors": false,
  //            "AppliedAmount": 218.90,
  //            "DateString": "2020-01-29T00:00:00",
  //            "Date": "\/Date(1580256000000+0000)\/",
  //            "LineItems": [
  //            ],
  //            "Total": 218.90
  //          }
  //        ],
  //        "Prepayments": [
  //        ],
  //        "Overpayments": [
  //        ],
  //        "AmountDue": 0.00,
  //        "AmountPaid": 974.60,
  //        "AmountCredited": 218.90,
  //        "IsDiscounted": false,
  //        "HasAttachments": false,
  //        "HasErrors": false,
  //        "Contact": {
  //          "ContactID": "d0cd2c4f-18a0-4f7c-a32a-2db00f29d298",
  //          "Name": "PC Complete",
  //          "Addresses": [
  //          ],
  //          "Phones": [
  //          ],
  //          "ContactGroups": [
  //          ],
  //          "ContactPersons": [
  //          ],
  //          "HasValidationErrors": false
  //        },
  //        "DateString": "2020-01-28T00:00:00",
  //        "Date": "\/Date(1580169600000+0000)\/",
  //        "DueDateString": "2020-02-04T00:00:00",
  //        "DueDate": "\/Date(1580774400000+0000)\/",
  //        "Status": "PAID",
  //        "LineAmountTypes": "Exclusive",
  //        "LineItems": [
  //        ],
  //        "SubTotal": 1085.00,
  //        "TotalTax": 108.50,
  //        "Total": 1193.50,
  //        "UpdatedDateUTC": "\/Date(1221561913790+0000)\/",
  //        "CurrencyCode": "AUD",
  //        "FullyPaidOnDate": "\/Date(1580688000000+0000)\/"
  //      },
  //      {
  //        "Type": "ACCPAY",
  //        "InvoiceID": "c12aff7e-12bf-4185-8702-460929f19674",
  //        "InvoiceNumber": "",
  //        "Reference": "",
  //        "Payments": [
  //        ],
  //        "CreditNotes": [
  //        ],
  //        "Prepayments": [
  //        ],
  //        "Overpayments": [
  //        ],
  //        "AmountDue": 2166.99,
  //        "AmountPaid": 0.00,
  //        "AmountCredited": 0.00,
  //        "CurrencyRate": 1.000000,
  //        "IsDiscounted": false,
  //        "HasAttachments": false,
  //        "HasErrors": false,
  //        "Contact": {
  //          "ContactID": "d0cd2c4f-18a0-4f7c-a32a-2db00f29d298",
  //          "Name": "PC Complete",
  //          "Addresses": [
  //          ],
  //          "Phones": [
  //          ],
  //          "ContactGroups": [
  //          ],
  //          "ContactPersons": [
  //          ],
  //          "HasValidationErrors": false
  //        },
  //        "DateString": "2020-04-10T00:00:00",
  //        "Date": "\/Date(1586476800000+0000)\/",
  //        "DueDateString": "2020-05-05T00:00:00",
  //        "DueDate": "\/Date(1588636800000+0000)\/",
  //        "Status": "AUTHORISED",
  //        "LineAmountTypes": "Exclusive",
  //        "LineItems": [
  //        ],
  //        "SubTotal": 1969.99,
  //        "TotalTax": 197.00,
  //        "Total": 2166.99,
  //        "UpdatedDateUTC": "\/Date(1497965301980+0000)\/",
  //        "CurrencyCode": "AUD"
  //      }
  //    ]
  //  }
  //  

  Id := jsonResponse.StringOf('Id');
  Status := jsonResponse.StringOf('Status');
  ProviderName := jsonResponse.StringOf('ProviderName');
  DateTimeUTC := jsonResponse.StringOf('DateTimeUTC');
  i := 0;
  count_i := jsonResponse.SizeOfArray('Invoices');
  while i < count_i do
    begin
      jsonResponse.I := i;
      Type := jsonResponse.StringOf('Invoices[i].Type');
      InvoiceID := jsonResponse.StringOf('Invoices[i].InvoiceID');
      InvoiceNumber := jsonResponse.StringOf('Invoices[i].InvoiceNumber');
      Reference := jsonResponse.StringOf('Invoices[i].Reference');
      AmountDue := jsonResponse.StringOf('Invoices[i].AmountDue');
      AmountPaid := jsonResponse.StringOf('Invoices[i].AmountPaid');
      AmountCredited := jsonResponse.StringOf('Invoices[i].AmountCredited');
      IsDiscounted := jsonResponse.BoolOf('Invoices[i].IsDiscounted');
      HasAttachments := jsonResponse.BoolOf('Invoices[i].HasAttachments');
      HasErrors := jsonResponse.BoolOf('Invoices[i].HasErrors');
      ContactContactID := jsonResponse.StringOf('Invoices[i].Contact.ContactID');
      ContactName := jsonResponse.StringOf('Invoices[i].Contact.Name');
      ContactHasValidationErrors := jsonResponse.BoolOf('Invoices[i].Contact.HasValidationErrors');
      DateString := jsonResponse.StringOf('Invoices[i].DateString');
      Date := jsonResponse.StringOf('Invoices[i].Date');
      DueDateString := jsonResponse.StringOf('Invoices[i].DueDateString');
      DueDate := jsonResponse.StringOf('Invoices[i].DueDate');
      Status := jsonResponse.StringOf('Invoices[i].Status');
      LineAmountTypes := jsonResponse.StringOf('Invoices[i].LineAmountTypes');
      SubTotal := jsonResponse.StringOf('Invoices[i].SubTotal');
      TotalTax := jsonResponse.StringOf('Invoices[i].TotalTax');
      Total := jsonResponse.StringOf('Invoices[i].Total');
      UpdatedDateUTC := jsonResponse.StringOf('Invoices[i].UpdatedDateUTC');
      CurrencyCode := jsonResponse.StringOf('Invoices[i].CurrencyCode');
      FullyPaidOnDate := jsonResponse.StringOf('Invoices[i].FullyPaidOnDate');
      CurrencyRate := jsonResponse.StringOf('Invoices[i].CurrencyRate');
      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Payments');
      while j < count_j do
        begin
          jsonResponse.J := j;
          PaymentID := jsonResponse.StringOf('Invoices[i].Payments[j].PaymentID');
          Date := jsonResponse.StringOf('Invoices[i].Payments[j].Date');
          Amount := jsonResponse.StringOf('Invoices[i].Payments[j].Amount');
          Reference := jsonResponse.StringOf('Invoices[i].Payments[j].Reference');
          HasAccount := jsonResponse.BoolOf('Invoices[i].Payments[j].HasAccount');
          HasValidationErrors := jsonResponse.BoolOf('Invoices[i].Payments[j].HasValidationErrors');
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].CreditNotes');
      while j < count_j do
        begin
          jsonResponse.J := j;
          CreditNoteID := jsonResponse.StringOf('Invoices[i].CreditNotes[j].CreditNoteID');
          CreditNoteNumber := jsonResponse.StringOf('Invoices[i].CreditNotes[j].CreditNoteNumber');
          ID := jsonResponse.StringOf('Invoices[i].CreditNotes[j].ID');
          HasErrors := jsonResponse.BoolOf('Invoices[i].CreditNotes[j].HasErrors');
          AppliedAmount := jsonResponse.StringOf('Invoices[i].CreditNotes[j].AppliedAmount');
          DateString := jsonResponse.StringOf('Invoices[i].CreditNotes[j].DateString');
          Date := jsonResponse.StringOf('Invoices[i].CreditNotes[j].Date');
          Total := jsonResponse.StringOf('Invoices[i].CreditNotes[j].Total');
          k := 0;
          count_k := jsonResponse.SizeOfArray('Invoices[i].CreditNotes[j].LineItems');
          while k < count_k do
            begin
              jsonResponse.K := k;
              k := k + 1;
            end;

          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Prepayments');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Overpayments');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Contact.Addresses');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Contact.Phones');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Contact.ContactGroups');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].Contact.ContactPersons');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      j := 0;
      count_j := jsonResponse.SizeOfArray('Invoices[i].LineItems');
      while j < count_j do
        begin
          jsonResponse.J := j;
          j := j + 1;
        end;

      i := i + 1;
    end;



  http.Free;
  jsonToken.Free;
  resp.Free;
  jsonResponse.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.