(Ruby) Hungary NAV Token Exchange

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

Note: This example requires Chilkat v9.5.0.83 or greater.

For more information, see https://onlineszamla.nav.gov.hu/api/files/container/download/Online%20Szamla_Interfesz%20specifik%C3%A1ci%C3%B3_EN_v2.0.pdf

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# 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 = Chilkat::CkCrypt2.new()

dtNow = Chilkat::CkDateTime.new()
dtNow.SetFromCurrentSystemTime()
print dtNow.getAsTimestamp(false) + "\n";

# The hash algorithm for the password is SHA512 (not SHA3-512).
crypt.put_HashAlgorithm("sha512")
crypt.put_EncodingMode("hex")
myPassword = "my-password"
passwordHash = crypt.hashStringENC(myPassword)

# Generate a random request ID like "RID215118906689"
prng = Chilkat::CkPrng.new()
sbRequestId = Chilkat::CkStringBuilder.new()
sbRequestId.Append("RID")
sbRequestId.Append(prng.randomString(12,true,false,false))
print "generated requestId = " + sbRequestId.getAsString() + "\n";

# Calculate the requestSignature
crypt.put_HashAlgorithm("sha3-512")
signatureKey = "ce-8f5e-215119fa7dd621DLMRHRLH2S"

sbFinalHashBase = Chilkat::CkStringBuilder.new()

# 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 = Chilkat::CkXml.new()
xml.put_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
http = Chilkat::CkHttp.new()
http.put_Accept("application/xml")
http.SetRequestHeader("Content-Type","application/xml")
endpoint = "https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange"
# resp is a CkHttpResponse
resp = http.PostXml(endpoint,xml.getXml(),"utf-8")
if (http.get_LastMethodSuccess() == false)
    print http.lastErrorText() + "\n";
    exit
end

print "Response status code = " + resp.get_StatusCode().to_s() + "\n";

respXml = Chilkat::CkXml.new()
respXml.LoadXml(resp.bodyStr())
print "Response body:" + "\n";
print respXml.getXml() + "\n";

# 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

TokenExchangeResponse_xmlns = respXml.getAttrValue("xmlns")
TokenExchangeResponse_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")
encodedExchangeToken = respXml.getChildContent("encodedExchangeToken")
tokenValidityFrom = respXml.getChildContent("tokenValidityFrom")
tokenValidityTo = respXml.getChildContent("tokenValidityTo")