Dart Requires Chilkat v11.0.0+
Dart
Hungary NAV Token Exchange
See more Hungary NAV Invoicing Examples
Demonstrates the tokenExchange request for the Hungarian NAV Online Invoicing System REST API v2.0.Chilkat Dart Downloads
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"?>
// <TokenExchangeRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
// <header>
// <requestId>RID896801578348</requestId>
// <timestamp>2019-09-11T10:55:31.440Z</timestamp>
// <requestVersion>2.0</requestVersion>
// <headerVersion>1.0</headerVersion>
// </header>
// <user>
// <login>lwilsmn0uqdxe6u</login>
// <passwordHash>2F43840A882CFDB7DB0FEC07D419D030D864B47B6B541DC280EF81B937B7A176E33C052B0D26638CC18A7A2C08D8D311733078A774BF43F6CA57FE8CD74DC28E</passwordHash>
// <taxNumber>11111111</taxNumber>
// <requestSignature>B4B5E0F197BFFD3DF69BCC98D3BE775F65FD5445EEF95C9D6B6C59425F2B81C4F6DA1FD563B0C7E7D98AF1E1725E5C63C2803B5D3A93D1C02ED354AC92F2CC94</requestSignature>
// <!--<signKey>ac-ac3a-7f661bff7d342N43CYX4U9FG</signKey>-->
// </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>
// </TokenExchangeRequest>
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);
final requestSignature = crypt.hashStringENC(sbFinalHashBase.getAsString());
final xml = CkXml();
xml.tag = 'TokenExchangeRequest';
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');
// POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange
final http = CkHttp();
http.accept = 'application/xml';
final endpoint = 'https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange';
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());
// Save our exchange token to a file to be used for subsequent requests.
respXml.saveXml('qa_data/tokens/nav_exchange_token.xml');
// The result looks like this:
// <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
// <TokenExchangeResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
// <header>
// <requestId>RID789246611489</requestId>
// <timestamp>2020-03-25T14:14:36Z</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>
// <encodedExchangeToken>2lR5v57Tl ... 9n4tIWCYgjKQ==</encodedExchangeToken>
// <tokenValidityFrom>2020-03-25T15:14:36.987+01:00</tokenValidityFrom>
// <tokenValidityTo>2020-03-25T15:19:36.987+01:00</tokenValidityTo>
// </TokenExchangeResponse>
// Use this online tool to generate parsing code from sample XML:
// Generate Parsing Code from XML
final tokenExchangeResponseXmlns = respXml.getAttrValue('xmlns');
final tokenExchangeResponseXmlnsNs2 = 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 encodedExchangeToken = respXml.getChildContent('encodedExchangeToken');
final tokenValidityFrom = respXml.getChildContent('tokenValidityFrom');
final tokenValidityTo = respXml.getChildContent('tokenValidityTo');
}