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Unicode 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.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkCrypt2W.h>
#include <C_CkDateTimeW.h>
#include <C_CkPrngW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkXmlW.h>
#include <C_CkHttpW.h>
#include <C_CkHttpResponseW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2W crypt;
    HCkDateTimeW dtNow;
    const wchar_t *myPassword;
    const wchar_t *passwordHash;
    HCkPrngW prng;
    HCkStringBuilderW sbRequestId;
    const wchar_t *signatureKey;
    HCkStringBuilderW sbFinalHashBase;
    int numReplaced;
    const wchar_t *requestSignature;
    HCkXmlW xml;
    HCkHttpW http;
    const wchar_t *endpoint;
    HCkHttpResponseW resp;
    HCkXmlW respXml;
    const wchar_t *TokenExchangeResponse_xmlns;
    const wchar_t *TokenExchangeResponse_xmlns_ns2;
    const wchar_t *requestId;
    const wchar_t *timestamp;
    const wchar_t *requestVersion;
    const wchar_t *headerVersion;
    const wchar_t *funcCode;
    const wchar_t *softwareId;
    const wchar_t *softwareName;
    const wchar_t *softwareOperation;
    const wchar_t *softwareMainVersion;
    const wchar_t *softwareDevName;
    const wchar_t *softwareDevContact;
    const wchar_t *softwareDevCountryCode;
    const wchar_t *softwareDevTaxNumber;
    const wchar_t *encodedExchangeToken;
    const wchar_t *tokenValidityFrom;
    const wchar_t *tokenValidityTo;

    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>

    crypt = CkCrypt2W_Create();

    dtNow = CkDateTimeW_Create();
    CkDateTimeW_SetFromCurrentSystemTime(dtNow);
    wprintf(L"%s\n",CkDateTimeW_getAsTimestamp(dtNow,FALSE));

    // The hash algorithm for the password is SHA512 (not SHA3-512).
    CkCrypt2W_putHashAlgorithm(crypt,L"sha512");
    CkCrypt2W_putEncodingMode(crypt,L"hex");
    myPassword = L"my-password";
    passwordHash = CkCrypt2W_hashStringENC(crypt,myPassword);

    // Generate a random request ID like "RID215118906689"
    prng = CkPrngW_Create();
    sbRequestId = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbRequestId,L"RID");
    CkStringBuilderW_Append(sbRequestId,CkPrngW_randomString(prng,12,TRUE,FALSE,FALSE));
    wprintf(L"generated requestId = %s\n",CkStringBuilderW_getAsString(sbRequestId));

    // Calculate the requestSignature
    CkCrypt2W_putHashAlgorithm(crypt,L"sha3-512");
    signatureKey = L"ce-8f5e-215119fa7dd621DLMRHRLH2S";

    sbFinalHashBase = CkStringBuilderW_Create();

    // First append the timestamp because we are going to remove certain chars/parts.
    CkStringBuilderW_Append(sbFinalHashBase,CkDateTimeW_getAsTimestamp(dtNow,FALSE));
    numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L"Z",L"");
    numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L"-",L"");
    numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L":",L"");
    numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L"T",L"");

    // Prepend the requestId and append the signatureKey
    CkStringBuilderW_Prepend(sbFinalHashBase,CkStringBuilderW_getAsString(sbRequestId));
    CkStringBuilderW_Append(sbFinalHashBase,signatureKey);

    requestSignature = CkCrypt2W_hashStringENC(crypt,CkStringBuilderW_getAsString(sbFinalHashBase));

    xml = CkXmlW_Create();
    CkXmlW_putTag(xml,L"TokenExchangeRequest");
    CkXmlW_AddAttribute(xml,L"xmlns",L"http://schemas.nav.gov.hu/OSA/2.0/api");
    CkXmlW_UpdateChildContent(xml,L"header|requestId",CkStringBuilderW_getAsString(sbRequestId));
    CkXmlW_UpdateChildContent(xml,L"header|timestamp",CkDateTimeW_getAsTimestamp(dtNow,FALSE));
    CkXmlW_UpdateChildContent(xml,L"header|requestVersion",L"2.0");
    CkXmlW_UpdateChildContent(xml,L"header|headerVersion",L"1.0");
    CkXmlW_UpdateChildContent(xml,L"user|login",L"lwilsmn0uqdxe6u");
    CkXmlW_UpdateChildContent(xml,L"user|passwordHash",passwordHash);
    CkXmlW_UpdateChildContent(xml,L"user|taxNumber",L"11111111");
    CkXmlW_UpdateChildContent(xml,L"user|requestSignature",requestSignature);
    CkXmlW_UpdateChildContent(xml,L"software|softwareId",L"123456789123456789");
    CkXmlW_UpdateChildContent(xml,L"software|softwareName",L"string");
    CkXmlW_UpdateChildContent(xml,L"software|softwareOperation",L"LOCAL_SOFTWARE");
    CkXmlW_UpdateChildContent(xml,L"software|softwareMainVersion",L"string");
    CkXmlW_UpdateChildContent(xml,L"software|softwareDevName",L"string");
    CkXmlW_UpdateChildContent(xml,L"software|softwareDevContact",L"string");
    CkXmlW_UpdateChildContent(xml,L"software|softwareDevCountryCode",L"HU");
    CkXmlW_UpdateChildContent(xml,L"software|softwareDevTaxNumber",L"string");

    // POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange
    http = CkHttpW_Create();
    CkHttpW_putAccept(http,L"application/xml");
    endpoint = L"https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange";
    resp = CkHttpResponseW_Create();
    success = CkHttpW_HttpStr(http,L"POST",endpoint,CkXmlW_getXml(xml),L"utf-8",L"application/xml",resp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkCrypt2W_Dispose(crypt);
        CkDateTimeW_Dispose(dtNow);
        CkPrngW_Dispose(prng);
        CkStringBuilderW_Dispose(sbRequestId);
        CkStringBuilderW_Dispose(sbFinalHashBase);
        CkXmlW_Dispose(xml);
        CkHttpW_Dispose(http);
        CkHttpResponseW_Dispose(resp);
        return;
    }

    wprintf(L"Response status code = %d\n",CkHttpResponseW_getStatusCode(resp));

    respXml = CkXmlW_Create();
    CkXmlW_LoadXml(respXml,CkHttpResponseW_bodyStr(resp));
    wprintf(L"Response body:\n");
    wprintf(L"%s\n",CkXmlW_getXml(respXml));

    // Save our exchange token to a file to be used for subsequent requests.
    CkXmlW_SaveXml(respXml,L"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

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    TokenExchangeResponse_xmlns = CkXmlW_getAttrValue(respXml,L"xmlns");
    TokenExchangeResponse_xmlns_ns2 = CkXmlW_getAttrValue(respXml,L"xmlns:ns2");
    requestId = CkXmlW_getChildContent(respXml,L"header|requestId");
    timestamp = CkXmlW_getChildContent(respXml,L"header|timestamp");
    requestVersion = CkXmlW_getChildContent(respXml,L"header|requestVersion");
    headerVersion = CkXmlW_getChildContent(respXml,L"header|headerVersion");
    funcCode = CkXmlW_getChildContent(respXml,L"result|funcCode");
    softwareId = CkXmlW_getChildContent(respXml,L"software|softwareId");
    softwareName = CkXmlW_getChildContent(respXml,L"software|softwareName");
    softwareOperation = CkXmlW_getChildContent(respXml,L"software|softwareOperation");
    softwareMainVersion = CkXmlW_getChildContent(respXml,L"software|softwareMainVersion");
    softwareDevName = CkXmlW_getChildContent(respXml,L"software|softwareDevName");
    softwareDevContact = CkXmlW_getChildContent(respXml,L"software|softwareDevContact");
    softwareDevCountryCode = CkXmlW_getChildContent(respXml,L"software|softwareDevCountryCode");
    softwareDevTaxNumber = CkXmlW_getChildContent(respXml,L"software|softwareDevTaxNumber");
    encodedExchangeToken = CkXmlW_getChildContent(respXml,L"encodedExchangeToken");
    tokenValidityFrom = CkXmlW_getChildContent(respXml,L"tokenValidityFrom");
    tokenValidityTo = CkXmlW_getChildContent(respXml,L"tokenValidityTo");


    CkCrypt2W_Dispose(crypt);
    CkDateTimeW_Dispose(dtNow);
    CkPrngW_Dispose(prng);
    CkStringBuilderW_Dispose(sbRequestId);
    CkStringBuilderW_Dispose(sbFinalHashBase);
    CkXmlW_Dispose(xml);
    CkHttpW_Dispose(http);
    CkHttpResponseW_Dispose(resp);
    CkXmlW_Dispose(respXml);

    }