Lazarus Pascal Requires Chilkat v11.0.0+
Lazarus Pascal
Hungary NAV Query Taxpayer
See more Hungary NAV Invoicing Examples
Demonstrates the queryTaxpayer request for the Hungarian NAV Online Invoicing System REST API v2.0.Chilkat Lazarus Pascal Downloads
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.CkDateTime,
Chilkat.Prng,
Chilkat.HttpResponse,
Chilkat.StringBuilder,
Chilkat.Xml,
Chilkat.Crypt2;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
crypt: TCrypt2;
dtNow: TCkDateTime;
myPassword: string;
passwordHash: string;
prng: TPrng;
sbRequestId: TStringBuilder;
signatureKey: string;
sbFinalHashBase: TStringBuilder;
numReplaced: Integer;
requestSignature: string;
xml: TXml;
http: THttp;
endpoint: string;
resp: THttpResponse;
respXml: TXml;
QueryTaxpayerResponse_xmlns: string;
QueryTaxpayerResponse_xmlns_ns2: string;
requestId: string;
timestamp: string;
requestVersion: string;
headerVersion: string;
funcCode: string;
softwareId: string;
softwareName: string;
softwareOperation: string;
softwareMainVersion: string;
softwareDevName: string;
softwareDevContact: string;
softwareDevCountryCode: string;
softwareDevTaxNumber: string;
infoDate: string;
taxpayerValidity: string;
taxpayerName: string;
ns2_taxpayerId: Integer;
ns2_vatCode: Integer;
taxpayerAddressType: string;
ns2_countryCode: string;
ns2_postalCode: Integer;
ns2_city: string;
ns2_streetName: string;
ns2_publicPlaceCategory: string;
ns2_number: Integer;
begin
success := False;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Build the following XML:
// <?xml version="1.0" encoding="UTF-8"?>
// <QueryTaxpayerRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
// <header>
// <requestId>RID215118906689</requestId>
// <timestamp>2019-09-11T11:11:08.579Z</timestamp>
// <requestVersion>2.0</requestVersion>
// <headerVersion>1.0</headerVersion>
// </header>
// <user>
// <login>lwilsmn0uqdxe6u</login>
// <passwordHash>2F43840A882CFDB7DB0FEC07D419D030D864B47B6B541DC280EF81B937B7A176E33C052B0D26638CC18A7A2C08D8D311733078A774BF43F6CA57FE8CD74DC28E</passwordHash>
// <taxNumber>11111111</taxNumber>
// <requestSignature>C5ADE8A2231C509D2887E6C2C4406CC5F72CA25B070AD3E94FADFA3F91A8A3667AF882DEDC7D67E9086E3D34A95886E929ACD8C924CD1E8357C89BEF43BA9126</requestSignature>
// </user>
// <software>
// <softwareId>123456789123456789</softwareId>
// <softwareName>string</softwareName>
// <softwareOperation>LOCAL_SOFTWARE</softwareOperation>
// <softwareMainVersion>string</softwareMainVersion>
// <softwareDevName>string</softwareDevName>
// <softwareDevContact>string</softwareDevContact>
// <softwareDevCountryCode>HU</softwareDevCountryCode>
// <softwareDevTaxNumber>string</softwareDevTaxNumber>
// </software>
// <taxNumber>22222222</taxNumber>
// </QueryTaxpayerRequest>
crypt := TCrypt2.Create;
dtNow := TCkDateTime.Create;
dtNow.SetFromCurrentSystemTime();
WriteLn(dtNow.GetAsTimestamp(False));
// The hash algorithm for the password is SHA512 (not SHA3-512).
crypt.HashAlgorithm := 'sha512';
crypt.EncodingMode := 'hex';
myPassword := 'my-password';
passwordHash := crypt.HashStringENC(myPassword);
// Generate a random request ID like "RID215118906689"
prng := TPrng.Create;
sbRequestId := TStringBuilder.Create;
sbRequestId.Append('RID');
sbRequestId.Append(prng.RandomString(12,True,False,False));
WriteLn('generated requestId = ' + sbRequestId.GetAsString());
// Calculate the requestSignature
crypt.HashAlgorithm := 'sha3-512';
signatureKey := 'ce-8f5e-215119fa7dd621DLMRHRLH2S';
sbFinalHashBase := TStringBuilder.Create;
// First append the timestamp because we are going to remove certain chars/parts.
sbFinalHashBase.Append(dtNow.GetAsTimestamp(False));
numReplaced := sbFinalHashBase.Replace('Z','');
numReplaced := sbFinalHashBase.Replace('-','');
numReplaced := sbFinalHashBase.Replace(':','');
numReplaced := sbFinalHashBase.Replace('T','');
// Prepend the requestId and append the signatureKey
sbFinalHashBase.Prepend(sbRequestId.GetAsString());
sbFinalHashBase.Append(signatureKey);
requestSignature := crypt.HashStringENC(sbFinalHashBase.GetAsString());
xml := TXml.Create;
xml.Tag := 'QueryTaxpayerRequest';
xml.AddAttribute('xmlns','http://schemas.nav.gov.hu/OSA/2.0/api');
xml.UpdateChildContent('header|requestId',sbRequestId.GetAsString());
xml.UpdateChildContent('header|timestamp',dtNow.GetAsTimestamp(False));
xml.UpdateChildContent('header|requestVersion','2.0');
xml.UpdateChildContent('header|headerVersion','1.0');
xml.UpdateChildContent('user|login','lwilsmn0uqdxe6u');
xml.UpdateChildContent('user|passwordHash',passwordHash);
xml.UpdateChildContent('user|taxNumber','11111111');
xml.UpdateChildContent('user|requestSignature',requestSignature);
xml.UpdateChildContent('software|softwareId','123456789123456789');
xml.UpdateChildContent('software|softwareName','string');
xml.UpdateChildContent('software|softwareOperation','LOCAL_SOFTWARE');
xml.UpdateChildContent('software|softwareMainVersion','string');
xml.UpdateChildContent('software|softwareDevName','string');
xml.UpdateChildContent('software|softwareDevContact','string');
xml.UpdateChildContent('software|softwareDevCountryCode','HU');
xml.UpdateChildContent('software|softwareDevTaxNumber','string');
xml.UpdateChildContent('taxNumber','22222222');
// POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/queryTaxpayer
http := THttp.Create;
http.Accept := 'application/xml';
endpoint := 'https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/queryTaxpayer';
resp := THttpResponse.Create;
success := http.HttpStr('POST',endpoint,xml.GetXml(),'utf-8','application/xml',resp);
if (success = False) then
begin
WriteLn(http.LastErrorText);
Exit;
end;
WriteLn('Response status code = ' + resp.StatusCode);
respXml := TXml.Create;
respXml.LoadXml(resp.BodyStr);
WriteLn('Response body:');
WriteLn(respXml.GetXml());
// The result looks like this:
// <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
// <QueryTaxpayerResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
// <header>
// <requestId>RID847153193061</requestId>
// <timestamp>2020-03-24T16:00:34Z</timestamp>
// <requestVersion>2.0</requestVersion>
// <headerVersion>1.0</headerVersion>
// </header>
// <result>
// <funcCode>OK</funcCode>
// </result>
// <software>
// <softwareId>123456789123456789</softwareId>
// <softwareName>string</softwareName>
// <softwareOperation>LOCAL_SOFTWARE</softwareOperation>
// <softwareMainVersion>string</softwareMainVersion>
// <softwareDevName>string</softwareDevName>
// <softwareDevContact>string</softwareDevContact>
// <softwareDevCountryCode>HU</softwareDevCountryCode>
// <softwareDevTaxNumber>string</softwareDevTaxNumber>
// </software>
// <infoDate>1993-01-01T00:00:00.000+01:00</infoDate>
// <taxpayerValidity>true</taxpayerValidity>
// <taxpayerData>
// <taxpayerName>some taxpayer name</taxpayerName>
// <taxNumberDetail>
// <ns2:taxpayerId>22222222</ns2:taxpayerId>
// <ns2:vatCode>2</ns2:vatCode>
// </taxNumberDetail>
// <taxpayerAddressList>
// <taxpayerAddressItem>
// <taxpayerAddressType>HQ</taxpayerAddressType>
// <taxpayerAddress>
// <ns2:countryCode>HU</ns2:countryCode>
// <ns2:postalCode>1121</ns2:postalCode>
// <ns2:city>BUDAPEST 12</ns2:city>
// <ns2:streetName>ABCD</ns2:streetName>
// <ns2:publicPlaceCategory>UTCA</ns2:publicPlaceCategory>
// <ns2:number>20</ns2:number>
// </taxpayerAddress>
// </taxpayerAddressItem>
// </taxpayerAddressList>
// </taxpayerData>
// </QueryTaxpayerResponse>
// Use this online tool to generate parsing code from sample XML:
// Generate Parsing Code from XML
QueryTaxpayerResponse_xmlns := respXml.GetAttrValue('xmlns');
QueryTaxpayerResponse_xmlns_ns2 := respXml.GetAttrValue('xmlns:ns2');
requestId := respXml.GetChildContent('header|requestId');
timestamp := respXml.GetChildContent('header|timestamp');
requestVersion := respXml.GetChildContent('header|requestVersion');
headerVersion := respXml.GetChildContent('header|headerVersion');
funcCode := respXml.GetChildContent('result|funcCode');
softwareId := respXml.GetChildContent('software|softwareId');
softwareName := respXml.GetChildContent('software|softwareName');
softwareOperation := respXml.GetChildContent('software|softwareOperation');
softwareMainVersion := respXml.GetChildContent('software|softwareMainVersion');
softwareDevName := respXml.GetChildContent('software|softwareDevName');
softwareDevContact := respXml.GetChildContent('software|softwareDevContact');
softwareDevCountryCode := respXml.GetChildContent('software|softwareDevCountryCode');
softwareDevTaxNumber := respXml.GetChildContent('software|softwareDevTaxNumber');
infoDate := respXml.GetChildContent('infoDate');
taxpayerValidity := respXml.GetChildContent('taxpayerValidity');
taxpayerName := respXml.GetChildContent('taxpayerData|taxpayerName');
ns2_taxpayerId := respXml.GetChildIntValue('taxpayerData|taxNumberDetail|ns2:taxpayerId');
ns2_vatCode := respXml.GetChildIntValue('taxpayerData|taxNumberDetail|ns2:vatCode');
taxpayerAddressType := respXml.GetChildContent('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddressType');
ns2_countryCode := respXml.GetChildContent('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:countryCode');
ns2_postalCode := respXml.GetChildIntValue('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:postalCode');
ns2_city := respXml.GetChildContent('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:city');
ns2_streetName := respXml.GetChildContent('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:streetName');
ns2_publicPlaceCategory := respXml.GetChildContent('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:publicPlaceCategory');
ns2_number := respXml.GetChildIntValue('taxpayerData|taxpayerAddressList|taxpayerAddressItem|taxpayerAddress|ns2:number');
crypt.Free;
dtNow.Free;
prng.Free;
sbRequestId.Free;
sbFinalHashBase.Free;
xml.Free;
http.Free;
resp.Free;
respXml.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.