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C#

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.

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C# 
bool success = false;

//  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>

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

Chilkat.CkDateTime dtNow = new Chilkat.CkDateTime();
dtNow.SetFromCurrentSystemTime();
Debug.WriteLine(dtNow.GetAsTimestamp(false));

//  The hash algorithm for the password is SHA512 (not SHA3-512).
crypt.HashAlgorithm = "sha512";
crypt.EncodingMode = "hex";
string myPassword = "my-password";
string passwordHash = crypt.HashStringENC(myPassword);

//  Generate a random request ID like "RID215118906689"
Chilkat.Prng prng = new Chilkat.Prng();
Chilkat.StringBuilder sbRequestId = new Chilkat.StringBuilder();
sbRequestId.Append("RID");
sbRequestId.Append(prng.RandomString(12,true,false,false));
Debug.WriteLine("generated requestId = " + sbRequestId.GetAsString());

//  Calculate the requestSignature
crypt.HashAlgorithm = "sha3-512";
string signatureKey = "ce-8f5e-215119fa7dd621DLMRHRLH2S";

Chilkat.StringBuilder sbFinalHashBase = new Chilkat.StringBuilder();

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

string requestSignature = crypt.HashStringENC(sbFinalHashBase.GetAsString());

Chilkat.Xml xml = new Chilkat.Xml();
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
Chilkat.Http http = new Chilkat.Http();
http.Accept = "application/xml";
string endpoint = "https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange";
Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpStr("POST",endpoint,xml.GetXml(),"utf-8","application/xml",resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("Response status code = " + Convert.ToString(resp.StatusCode));

Chilkat.Xml respXml = new Chilkat.Xml();
respXml.LoadXml(resp.BodyStr);
Debug.WriteLine("Response body:");
Debug.WriteLine(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

string TokenExchangeResponse_xmlns = respXml.GetAttrValue("xmlns");
string TokenExchangeResponse_xmlns_ns2 = respXml.GetAttrValue("xmlns:ns2");
string requestId = respXml.GetChildContent("header|requestId");
string timestamp = respXml.GetChildContent("header|timestamp");
string requestVersion = respXml.GetChildContent("header|requestVersion");
string headerVersion = respXml.GetChildContent("header|headerVersion");
string funcCode = respXml.GetChildContent("result|funcCode");
string softwareId = respXml.GetChildContent("software|softwareId");
string softwareName = respXml.GetChildContent("software|softwareName");
string softwareOperation = respXml.GetChildContent("software|softwareOperation");
string softwareMainVersion = respXml.GetChildContent("software|softwareMainVersion");
string softwareDevName = respXml.GetChildContent("software|softwareDevName");
string softwareDevContact = respXml.GetChildContent("software|softwareDevContact");
string softwareDevCountryCode = respXml.GetChildContent("software|softwareDevCountryCode");
string softwareDevTaxNumber = respXml.GetChildContent("software|softwareDevTaxNumber");
string encodedExchangeToken = respXml.GetChildContent("encodedExchangeToken");
string tokenValidityFrom = respXml.GetChildContent("tokenValidityFrom");
string tokenValidityTo = respXml.GetChildContent("tokenValidityTo");