Chilkat Examples

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DataFlex Web API Examples

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(DataFlex) 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 ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoCrypt
    Handle hoDtNow
    String sMyPassword
    String sPasswordHash
    Handle hoPrng
    Handle hoSbRequestId
    String sSignatureKey
    Handle hoSbFinalHashBase
    Integer iNumReplaced
    String sRequestSignature
    Handle hoXml
    Handle hoHttp
    String sEndpoint
    Variant vResp
    Handle hoResp
    Handle hoRespXml
    String sTokenExchangeResponse_xmlns
    String sTokenExchangeResponse_xmlns_ns2
    String sRequestId
    String sTimestamp
    String sRequestVersion
    String sHeaderVersion
    String sFuncCode
    String sSoftwareId
    String sSoftwareName
    String sSoftwareOperation
    String sSoftwareMainVersion
    String sSoftwareDevName
    String sSoftwareDevContact
    String sSoftwareDevCountryCode
    String sSoftwareDevTaxNumber
    String sEncodedExchangeToken
    String sTokenValidityFrom
    String sTokenValidityTo
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    // 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>

    Get Create (RefClass(cComChilkatCrypt2)) To hoCrypt
    If (Not(IsComObjectCreated(hoCrypt))) Begin
        Send CreateComObject of hoCrypt
    End

    Get Create (RefClass(cComCkDateTime)) To hoDtNow
    If (Not(IsComObjectCreated(hoDtNow))) Begin
        Send CreateComObject of hoDtNow
    End
    Get ComSetFromCurrentSystemTime Of hoDtNow To iSuccess
    Get ComGetAsTimestamp Of hoDtNow False To sTemp1
    Showln sTemp1

    // The hash algorithm for the password is SHA512 (not SHA3-512).
    Set ComHashAlgorithm Of hoCrypt To "sha512"
    Set ComEncodingMode Of hoCrypt To "hex"
    Move "my-password" To sMyPassword
    Get ComHashStringENC Of hoCrypt sMyPassword To sPasswordHash

    // Generate a random request ID like "RID215118906689"
    Get Create (RefClass(cComChilkatPrng)) To hoPrng
    If (Not(IsComObjectCreated(hoPrng))) Begin
        Send CreateComObject of hoPrng
    End
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbRequestId
    If (Not(IsComObjectCreated(hoSbRequestId))) Begin
        Send CreateComObject of hoSbRequestId
    End
    Get ComAppend Of hoSbRequestId "RID" To iSuccess
    Get ComRandomString Of hoPrng 12 True False False To sTemp1
    Get ComAppend Of hoSbRequestId sTemp1 To iSuccess
    Get ComGetAsString Of hoSbRequestId To sTemp1
    Showln "generated requestId = " sTemp1

    // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater.  The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions.
    // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater.  The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions.
    // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater.  The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions.
    // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater.  The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions.
    // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater.  The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions.
    // Calculate the requestSignature
    Set ComHashAlgorithm Of hoCrypt To "sha3-512"
    Move "ce-8f5e-215119fa7dd621DLMRHRLH2S" To sSignatureKey

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbFinalHashBase
    If (Not(IsComObjectCreated(hoSbFinalHashBase))) Begin
        Send CreateComObject of hoSbFinalHashBase
    End

    // First append the timestamp because we are going to remove certain chars/parts.
    Get ComGetAsTimestamp Of hoDtNow False To sTemp1
    Get ComAppend Of hoSbFinalHashBase sTemp1 To iSuccess
    Get ComReplace Of hoSbFinalHashBase "Z" "" To iNumReplaced
    Get ComReplace Of hoSbFinalHashBase "-" "" To iNumReplaced
    Get ComReplace Of hoSbFinalHashBase ":" "" To iNumReplaced
    Get ComReplace Of hoSbFinalHashBase "T" "" To iNumReplaced

    // Prepend the requestId and append the signatureKey
    Get ComGetAsString Of hoSbRequestId To sTemp1
    Get ComPrepend Of hoSbFinalHashBase sTemp1 To iSuccess
    Get ComAppend Of hoSbFinalHashBase sSignatureKey To iSuccess

    Get ComGetAsString Of hoSbFinalHashBase To sTemp1
    Get ComHashStringENC Of hoCrypt sTemp1 To sRequestSignature

    Get Create (RefClass(cComChilkatXml)) To hoXml
    If (Not(IsComObjectCreated(hoXml))) Begin
        Send CreateComObject of hoXml
    End
    Set ComTag Of hoXml To "TokenExchangeRequest"
    Get ComAddAttribute Of hoXml "xmlns" "http://schemas.nav.gov.hu/OSA/2.0/api" To iSuccess
    Get ComGetAsString Of hoSbRequestId To sTemp1
    Send ComUpdateChildContent To hoXml "header|requestId" sTemp1
    Get ComGetAsTimestamp Of hoDtNow False To sTemp1
    Send ComUpdateChildContent To hoXml "header|timestamp" sTemp1
    Send ComUpdateChildContent To hoXml "header|requestVersion" "2.0"
    Send ComUpdateChildContent To hoXml "header|headerVersion" "1.0"
    Send ComUpdateChildContent To hoXml "user|login" "lwilsmn0uqdxe6u"
    Send ComUpdateChildContent To hoXml "user|passwordHash" sPasswordHash
    Send ComUpdateChildContent To hoXml "user|taxNumber" "11111111"
    Send ComUpdateChildContent To hoXml "user|requestSignature" sRequestSignature
    Send ComUpdateChildContent To hoXml "software|softwareId" "123456789123456789"
    Send ComUpdateChildContent To hoXml "software|softwareName" "string"
    Send ComUpdateChildContent To hoXml "software|softwareOperation" "LOCAL_SOFTWARE"
    Send ComUpdateChildContent To hoXml "software|softwareMainVersion" "string"
    Send ComUpdateChildContent To hoXml "software|softwareDevName" "string"
    Send ComUpdateChildContent To hoXml "software|softwareDevContact" "string"
    Send ComUpdateChildContent To hoXml "software|softwareDevCountryCode" "HU"
    Send ComUpdateChildContent To hoXml "software|softwareDevTaxNumber" "string"

    // POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange
    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End
    Set ComAccept Of hoHttp To "application/xml"
    Send ComSetRequestHeader To hoHttp "Content-Type" "application/xml"
    Move "https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange" To sEndpoint
    Get ComGetXml Of hoXml To sTemp1
    Get ComPostXml Of hoHttp sEndpoint sTemp1 "utf-8" To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComStatusCode Of hoResp To iTemp1
    Showln "Response status code = " iTemp1

    Get Create (RefClass(cComChilkatXml)) To hoRespXml
    If (Not(IsComObjectCreated(hoRespXml))) Begin
        Send CreateComObject of hoRespXml
    End
    Get ComBodyStr Of hoResp To sTemp1
    Get ComLoadXml Of hoRespXml sTemp1 To iSuccess
    Showln "Response body:"
    Get ComGetXml Of hoRespXml To sTemp1
    Showln sTemp1

    // Save our exchange token to a file to be used for subsequent requests.
    Get ComSaveXml Of hoRespXml "qa_data/tokens/nav_exchange_token.xml" To iSuccess

    Send Destroy of hoResp

    // 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

    Get ComGetAttrValue Of hoRespXml "xmlns" To sTokenExchangeResponse_xmlns
    Get ComGetAttrValue Of hoRespXml "xmlns:ns2" To sTokenExchangeResponse_xmlns_ns2
    Get ComGetChildContent Of hoRespXml "header|requestId" To sRequestId
    Get ComGetChildContent Of hoRespXml "header|timestamp" To sTimestamp
    Get ComGetChildContent Of hoRespXml "header|requestVersion" To sRequestVersion
    Get ComGetChildContent Of hoRespXml "header|headerVersion" To sHeaderVersion
    Get ComGetChildContent Of hoRespXml "result|funcCode" To sFuncCode
    Get ComGetChildContent Of hoRespXml "software|softwareId" To sSoftwareId
    Get ComGetChildContent Of hoRespXml "software|softwareName" To sSoftwareName
    Get ComGetChildContent Of hoRespXml "software|softwareOperation" To sSoftwareOperation
    Get ComGetChildContent Of hoRespXml "software|softwareMainVersion" To sSoftwareMainVersion
    Get ComGetChildContent Of hoRespXml "software|softwareDevName" To sSoftwareDevName
    Get ComGetChildContent Of hoRespXml "software|softwareDevContact" To sSoftwareDevContact
    Get ComGetChildContent Of hoRespXml "software|softwareDevCountryCode" To sSoftwareDevCountryCode
    Get ComGetChildContent Of hoRespXml "software|softwareDevTaxNumber" To sSoftwareDevTaxNumber
    Get ComGetChildContent Of hoRespXml "encodedExchangeToken" To sEncodedExchangeToken
    Get ComGetChildContent Of hoRespXml "tokenValidityFrom" To sTokenValidityFrom
    Get ComGetChildContent Of hoRespXml "tokenValidityTo" To sTokenValidityTo


End_Procedure

 

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