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Dart Requires Chilkat v11.0.0+

Hungary NAV Manage Invoice Request

See more Hungary NAV Invoicing Examples

Demonstrates the manageInvoice request for the Hungarian NAV Online Invoicing System REST API v2.0.

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Dart
import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // Build the following XML:

  // Use this online tool to generate code from sample XML: 
  // Generate Code to Create XML

  // <?xml version="1.0" encoding="UTF-8"?>
  // <ManageInvoiceRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
  // 	<header>
  // 		<requestId>RID181837288942</requestId>
  // 		<timestamp>2019-09-11T12:44:55.442Z</timestamp>
  // 		<requestVersion>2.0</requestVersion>
  // 		<headerVersion>1.0</headerVersion>
  // 	</header>
  // 	<user>
  // 		<login>lwilsmn0uqdxe6u</login>
  // 		<passwordHash>2F43840A882CFDB7DB0FEC07D419D030D864B47B6B541DC280EF81B937B7A176E33C052B0D26638CC18A7A2C08D8D311733078A774BF43F6CA57FE8CD74DC28E</passwordHash>
  // 		<taxNumber>11111111</taxNumber>
  // 		<requestSignature>E4D191A48EE8828A1E84C1F841A2B4E1699ECB49C4CDA1DC7A057765FD935872219644CC2B5A93B8A344404E4FD8ECA4902B5DBCF993E768DC558B0F0281E775</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>
  // 	<exchangeToken>b1aca173-d9e8-4561-9237-0511eed99eaa2P0ZHLXBRI2U</exchangeToken>
  // 	<invoiceOperations>
  // 		<compressedContent>false</compressedContent>
  // 		<invoiceOperation>
  // 			<index>1</index>
  // 			<invoiceOperation>CREATE</invoiceOperation>
  // 			<invoiceData>base64 contents of invoiceData1 XML file</invoiceData>
  // 		</invoiceOperation>
  // 		<invoiceOperation>
  // 			<index>2</index>
  // 			<invoiceOperation>CREATE</invoiceOperation>
  // 			<invoiceData>base64 contents of invoiceData2 XML file</invoiceData>
  // 		</invoiceOperation>
  // 		<invoiceOperation>
  // 			<index>3</index>
  // 			<invoiceOperation>CREATE</invoiceOperation>
  // 			<invoiceData>base64 contents of invoiceData3 XML file</invoiceData>
  // 		</invoiceOperation>
  // 	</invoiceOperations>
  // </ManageInvoiceRequest>
  // 

  // First load the invoiceData for the 3 XML invoice files we'll be sending.
  final bdInvoiceData1 = CkBinData();
  final bdInvoiceData2 = CkBinData();
  final bdInvoiceData3 = CkBinData();
  bdInvoiceData1.loadFile('qa_data/nav_invoicing/invoiceData1.xml');
  bdInvoiceData2.loadFile('qa_data/nav_invoicing/invoiceData2.xml');
  try {
    bdInvoiceData3.loadFile('qa_data/nav_invoicing/invoiceData3.xml');
  } on ChilkatException {
    print('Failed to load invoice data.');
    return;
  }

  final crypt = CkCrypt2();

  final dtNow = CkDateTime();
  dtNow.setFromCurrentSystemTime();
  print(dtNow.getAsTimestamp(false));

  // The hash algorithm for the password is SHA512 (not SHA3-512).
  crypt.hashAlgorithm = 'sha512';
  crypt.encodingMode = 'hex';
  final myPassword = 'my-password';
  final passwordHash = crypt.hashStringENC(myPassword);

  // Generate a random request ID like "RID215118906689"
  final prng = CkPrng();
  final sbRequestId = CkStringBuilder();
  sbRequestId.append('RID');
  sbRequestId.append(prng.randomString(12, true, false, false));
  print('generated requestId = ${sbRequestId.getAsString()}');

  // Calculate the requestSignature
  crypt.hashAlgorithm = 'sha3-512';
  final signatureKey = 'ce-8f5e-215119fa7dd621DLMRHRLH2S';

  final sbFinalHashBase = CkStringBuilder();

  // First append the timestamp because we are going to remove certain chars/parts.
  sbFinalHashBase.append(dtNow.getAsTimestamp(false));
  var 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);

  // Calculate each index hash and add it to the sbFinalHashBase
  final sbHashBase = CkStringBuilder();
  sbHashBase.append('CREATE');
  sbHashBase.append(bdInvoiceData1.getEncoded('base64'));
  var indexHash = crypt.hashStringENC(sbHashBase.getAsString());
  sbFinalHashBase.append(indexHash);

  sbHashBase.clear();
  sbHashBase.append('CREATE');
  sbHashBase.append(bdInvoiceData2.getEncoded('base64'));
  indexHash = crypt.hashStringENC(sbHashBase.getAsString());
  sbFinalHashBase.append(indexHash);

  sbHashBase.clear();
  sbHashBase.append('CREATE');
  sbHashBase.append(bdInvoiceData3.getEncoded('base64'));
  indexHash = crypt.hashStringENC(sbHashBase.getAsString());
  sbFinalHashBase.append(indexHash);

  // Get our request signature (using sha3-512 because our HashAlgorithm was set to "sha3-512" up above...)
  final requestSignature = crypt.hashStringENC(sbFinalHashBase.getAsString());

  // Load our recently obtained exchange token.
  // See Hungary NAV Invoicing Token Exchange Sample Code
  final xmlExchangeToken = CkXml();
  try {
    xmlExchangeToken.loadXmlFile('qa_data/tokens/nav_exchange_token.xml');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Get the base64 encoded/encrypted exchange token.
  // IMPORTANT:  Make sure to use the exchange token before it expires.
  // If it expired, then get a new one..
  final encodedEncryptedExchangeToken = xmlExchangeToken.getChildContent('encodedExchangeToken');

  // Decode to binary.
  final bdExchangeToken = CkBinData();
  bdExchangeToken.appendEncoded(encodedEncryptedExchangeToken, 'base64');

  // Decrypt using your 16-digit replacement key:
  crypt.cryptAlgorithm = 'aes';
  crypt.cipherMode = 'ecb';
  crypt.keyLength = 128;
  crypt.encodingMode = 'base64';
  // Pass your 16-digit replacement key here:
  crypt.setEncodedKey('99952BBAAAAA8XYZ', 'ascii');
  crypt.decryptBd(bdExchangeToken);
  final exchangeToken = bdExchangeToken.getString('utf-8');
  print('exchange token = $exchangeToken');

  // Now build the XML..
  final xml = CkXml();
  xml.tag = 'ManageInvoiceRequest';
  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('exchangeToken', exchangeToken);
  xml.updateChildContent('invoiceOperations|compressedContent', 'false');
  xml.updateChildContent('invoiceOperations|invoiceOperation|index', '1');
  xml.updateChildContent('invoiceOperations|invoiceOperation|invoiceOperation', 'CREATE');
  xml.updateChildContent('invoiceOperations|invoiceOperation|invoiceData', bdInvoiceData1.getEncoded('base64'));
  xml.updateChildContent('invoiceOperations|invoiceOperation[1]|index', '2');
  xml.updateChildContent('invoiceOperations|invoiceOperation[1]|invoiceOperation', 'CREATE');
  xml.updateChildContent('invoiceOperations|invoiceOperation[1]|invoiceData', bdInvoiceData2.getEncoded('base64'));
  xml.updateChildContent('invoiceOperations|invoiceOperation[2]|index', '3');
  xml.updateChildContent('invoiceOperations|invoiceOperation[2]|invoiceOperation', 'CREATE');
  xml.updateChildContent('invoiceOperations|invoiceOperation[2]|invoiceData', bdInvoiceData3.getEncoded('base64'));

  // POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageInvoice
  final http = CkHttp();
  http.accept = 'application/xml';
  final endpoint = 'https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageInvoice';
  final resp = CkHttpResponse();
  try {
    http.httpStr('POST', endpoint, xml.getXml(), 'utf-8', 'application/xml', resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Response status code = ${resp.statusCode}');

  final respXml = CkXml();
  respXml.loadXml(resp.bodyStr);
  print('Response body:');
  print(respXml.getXml());

  // The result looks like this:

  // <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  // <ManageInvoiceResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
  //     <header>
  //         <requestId>RID871830318143</requestId>
  //         <timestamp>2020-03-25T15:51:25Z</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>
  //     <transactionId>2WT9GFSKFUU1V4XP</transactionId>
  // </ManageInvoiceResponse>

  // Use this online tool to generate parsing code from sample XML: 
  // Generate Parsing Code from XML

  final manageInvoiceResponseXmlns = respXml.getAttrValue('xmlns');
  final manageInvoiceResponseXmlnsNs2 = respXml.getAttrValue('xmlns:ns2');
  final requestId = respXml.getChildContent('header|requestId');
  final timestamp = respXml.getChildContent('header|timestamp');
  final requestVersion = respXml.getChildContent('header|requestVersion');
  final headerVersion = respXml.getChildContent('header|headerVersion');
  final funcCode = respXml.getChildContent('result|funcCode');
  final softwareId = respXml.getChildContent('software|softwareId');
  final softwareName = respXml.getChildContent('software|softwareName');
  final softwareOperation = respXml.getChildContent('software|softwareOperation');
  final softwareMainVersion = respXml.getChildContent('software|softwareMainVersion');
  final softwareDevName = respXml.getChildContent('software|softwareDevName');
  final softwareDevContact = respXml.getChildContent('software|softwareDevContact');
  final softwareDevCountryCode = respXml.getChildContent('software|softwareDevCountryCode');
  final softwareDevTaxNumber = respXml.getChildContent('software|softwareDevTaxNumber');
  final transactionId = respXml.getChildContent('transactionId');
}