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Zig Requires Chilkat v11.0.0+

Hungary NAV Manage Invoice Request

See more Hungary NAV Invoicing Examples

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

Chilkat Zig Downloads

Zig
const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // 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"?>
    // <ManageInvoiceRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
    //     <header>
    //         <requestId>RID181837288942</requestId>
    //         <timestamp>2019-09-11T12:44:55.442Z</timestamp>
    //         <requestVersion>2.0</requestVersion>
    //         <headerVersion>1.0</headerVersion>
    //     </header>
    //     <user>
    //         <login>lwilsmn0uqdxe6u</login>
    //         <passwordHash>2F43840A882CFDB7DB0FEC07D419D030D864B47B6B541DC280EF81B937B7A176E33C052B0D26638CC18A7A2C08D8D311733078A774BF43F6CA57FE8CD74DC28E</passwordHash>
    //         <taxNumber>11111111</taxNumber>
    //         <requestSignature>E4D191A48EE8828A1E84C1F841A2B4E1699ECB49C4CDA1DC7A057765FD935872219644CC2B5A93B8A344404E4FD8ECA4902B5DBCF993E768DC558B0F0281E775</requestSignature>
    //     </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>
    //     <exchangeToken>b1aca173-d9e8-4561-9237-0511eed99eaa2P0ZHLXBRI2U</exchangeToken>
    //     <invoiceOperations>
    //         <compressedContent>false</compressedContent>
    //         <invoiceOperation>
    //             <index>1</index>
    //             <invoiceOperation>CREATE</invoiceOperation>
    //             <invoiceData>base64 contents of invoiceData1 XML file</invoiceData>
    //         </invoiceOperation>
    //         <invoiceOperation>
    //             <index>2</index>
    //             <invoiceOperation>CREATE</invoiceOperation>
    //             <invoiceData>base64 contents of invoiceData2 XML file</invoiceData>
    //         </invoiceOperation>
    //         <invoiceOperation>
    //             <index>3</index>
    //             <invoiceOperation>CREATE</invoiceOperation>
    //             <invoiceData>base64 contents of invoiceData3 XML file</invoiceData>
    //         </invoiceOperation>
    //     </invoiceOperations>
    // </ManageInvoiceRequest>
    //

    // First load the invoiceData for the 3 XML invoice files we'll be sending.
    const bd_invoice_data1 = try chilkat.BinData.init();
    defer bd_invoice_data1.deinit();
    const bd_invoice_data2 = try chilkat.BinData.init();
    defer bd_invoice_data2.deinit();
    const bd_invoice_data3 = try chilkat.BinData.init();
    defer bd_invoice_data3.deinit();
    try bd_invoice_data1.loadFile("qa_data/nav_invoicing/invoiceData1.xml");
    try bd_invoice_data2.loadFile("qa_data/nav_invoicing/invoiceData2.xml");
    bd_invoice_data3.loadFile("qa_data/nav_invoicing/invoiceData3.xml") catch {
        std.debug.print("Failed to load invoice data.\n", .{});
        return;
    };

    const crypt = try chilkat.Crypt2.init();
    defer crypt.deinit();

    const dt_now = try chilkat.DateTime.init();
    defer dt_now.deinit();
    dt_now.setFromCurrentSystemTime() catch {};
    std.debug.print("{s}\n", .{try dt_now.getAsTimestamp(alloc, false)});

    // The hash algorithm for the password is SHA512 (not SHA3-512).
    crypt.setHashAlgorithm("sha512");
    crypt.setEncodingMode("hex");
    const my_password = "my-password";
    const password_hash = try crypt.hashStringENC(alloc, my_password);

    // Generate a random request ID like "RID215118906689"
    const prng = try chilkat.Prng.init();
    defer prng.deinit();
    const sb_request_id = try chilkat.StringBuilder.init();
    defer sb_request_id.deinit();
    sb_request_id.append("RID") catch {};
    sb_request_id.append(try prng.randomString(alloc, 12, true, false, false)) catch {};
    std.debug.print("generated requestId = {s}\n", .{try sb_request_id.getAsString(alloc)});

    // Calculate the requestSignature
    crypt.setHashAlgorithm("sha3-512");
    const signature_key = "ce-8f5e-215119fa7dd621DLMRHRLH2S";

    const sb_final_hash_base = try chilkat.StringBuilder.init();
    defer sb_final_hash_base.deinit();

    // First append the timestamp because we are going to remove certain chars/parts.
    sb_final_hash_base.append(try dt_now.getAsTimestamp(alloc, false)) catch {};
    var num_replaced: i32 = sb_final_hash_base.replace("Z", "");
    num_replaced = sb_final_hash_base.replace("-", "");
    num_replaced = sb_final_hash_base.replace(":", "");
    num_replaced = sb_final_hash_base.replace("T", "");

    // Prepend the requestId and append the signatureKey
    sb_final_hash_base.prepend(try sb_request_id.getAsString(alloc)) catch {};
    sb_final_hash_base.append(signature_key) catch {};

    // Calculate each index hash and add it to the sbFinalHashBase
    const sb_hash_base = try chilkat.StringBuilder.init();
    defer sb_hash_base.deinit();
    sb_hash_base.append("CREATE") catch {};
    sb_hash_base.append(try bd_invoice_data1.getEncoded(alloc, "base64")) catch {};
    var index_hash: [:0]const u8 = try crypt.hashStringENC(alloc, try sb_hash_base.getAsString(alloc));
    sb_final_hash_base.append(index_hash) catch {};

    sb_hash_base.clear();
    sb_hash_base.append("CREATE") catch {};
    sb_hash_base.append(try bd_invoice_data2.getEncoded(alloc, "base64")) catch {};
    index_hash = try crypt.hashStringENC(alloc, try sb_hash_base.getAsString(alloc));
    sb_final_hash_base.append(index_hash) catch {};

    sb_hash_base.clear();
    sb_hash_base.append("CREATE") catch {};
    sb_hash_base.append(try bd_invoice_data3.getEncoded(alloc, "base64")) catch {};
    index_hash = try crypt.hashStringENC(alloc, try sb_hash_base.getAsString(alloc));
    sb_final_hash_base.append(index_hash) catch {};

    // Get our request signature (using sha3-512 because our HashAlgorithm was set to "sha3-512" up above...)
    const request_signature = try crypt.hashStringENC(alloc, try sb_final_hash_base.getAsString(alloc));

    // Load our recently obtained exchange token.
    // See Hungary NAV Invoicing Token Exchange Sample Code
    const xml_exchange_token = try chilkat.Xml.init();
    defer xml_exchange_token.deinit();
    xml_exchange_token.loadXmlFile("qa_data/tokens/nav_exchange_token.xml") catch {
        std.debug.print("{s}\n", .{try xml_exchange_token.getLastErrorText(alloc)});
        return;
    };

    // Get the base64 encoded/encrypted exchange token.
    // IMPORTANT:  Make sure to use the exchange token before it expires.
    // If it expired, then get a new one..
    const encoded_encrypted_exchange_token = try xml_exchange_token.getChildContent(alloc, "encodedExchangeToken");

    // Decode to binary.
    const bd_exchange_token = try chilkat.BinData.init();
    defer bd_exchange_token.deinit();
    bd_exchange_token.appendEncoded(encoded_encrypted_exchange_token, "base64") catch {};

    // Decrypt using your 16-digit replacement key:
    crypt.setCryptAlgorithm("aes");
    crypt.setCipherMode("ecb");
    crypt.setKeyLength(128);
    crypt.setEncodingMode("base64");
    // Pass your 16-digit replacement key here:
    crypt.setEncodedKey("99952BBAAAAA8XYZ", "ascii");
    crypt.decryptBd(bd_exchange_token) catch {};
    const exchange_token = try bd_exchange_token.getString(alloc, "utf-8");
    std.debug.print("exchange token = {s}\n", .{exchange_token});

    // Now build the XML..
    const xml = try chilkat.Xml.init();
    defer xml.deinit();
    xml.setTag("ManageInvoiceRequest");
    xml.addAttribute("xmlns", "http://schemas.nav.gov.hu/OSA/2.0/api") catch {};
    xml.updateChildContent("header|requestId", try sb_request_id.getAsString(alloc));
    xml.updateChildContent("header|timestamp", try dt_now.getAsTimestamp(alloc, false));
    xml.updateChildContent("header|requestVersion", "2.0");
    xml.updateChildContent("header|headerVersion", "1.0");
    xml.updateChildContent("user|login", "lwilsmn0uqdxe6u");
    xml.updateChildContent("user|passwordHash", password_hash);
    xml.updateChildContent("user|taxNumber", "11111111");
    xml.updateChildContent("user|requestSignature", request_signature);
    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");
    xml.updateChildContent("exchangeToken", exchange_token);
    xml.updateChildContent("invoiceOperations|compressedContent", "false");
    xml.updateChildContent("invoiceOperations|invoiceOperation|index", "1");
    xml.updateChildContent("invoiceOperations|invoiceOperation|invoiceOperation", "CREATE");
    xml.updateChildContent("invoiceOperations|invoiceOperation|invoiceData", try bd_invoice_data1.getEncoded(alloc, "base64"));
    xml.updateChildContent("invoiceOperations|invoiceOperation[1]|index", "2");
    xml.updateChildContent("invoiceOperations|invoiceOperation[1]|invoiceOperation", "CREATE");
    xml.updateChildContent("invoiceOperations|invoiceOperation[1]|invoiceData", try bd_invoice_data2.getEncoded(alloc, "base64"));
    xml.updateChildContent("invoiceOperations|invoiceOperation[2]|index", "3");
    xml.updateChildContent("invoiceOperations|invoiceOperation[2]|invoiceOperation", "CREATE");
    xml.updateChildContent("invoiceOperations|invoiceOperation[2]|invoiceData", try bd_invoice_data3.getEncoded(alloc, "base64"));

    // POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageInvoice
    const http = try chilkat.Http.init();
    defer http.deinit();
    http.setAccept("application/xml");
    const endpoint = "https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageInvoice";
    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpStr("POST", endpoint, try xml.getXml(alloc), "utf-8", "application/xml", resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Response status code = {d}\n", .{resp.getStatusCode()});

    const resp_xml = try chilkat.Xml.init();
    defer resp_xml.deinit();
    resp_xml.loadXml(try resp.getBodyStr(alloc)) catch {};
    std.debug.print("Response body:\n", .{});
    std.debug.print("{s}\n", .{try resp_xml.getXml(alloc)});

    // The result looks like this:

    // <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    // <ManageInvoiceResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
    //     <header>
    //         <requestId>RID871830318143</requestId>
    //         <timestamp>2020-03-25T15:51:25Z</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>
    //     <transactionId>2WT9GFSKFUU1V4XP</transactionId>
    // </ManageInvoiceResponse>

    // Use this online tool to generate parsing code from sample XML:
    // Generate Parsing Code from XML

    _ = try resp_xml.getAttrValue(alloc, "xmlns");
    _ = try resp_xml.getAttrValue(alloc, "xmlns:ns2");
    _ = try resp_xml.getChildContent(alloc, "header|requestId");
    _ = try resp_xml.getChildContent(alloc, "header|timestamp");
    _ = try resp_xml.getChildContent(alloc, "header|requestVersion");
    _ = try resp_xml.getChildContent(alloc, "header|headerVersion");
    _ = try resp_xml.getChildContent(alloc, "result|funcCode");
    _ = try resp_xml.getChildContent(alloc, "software|softwareId");
    _ = try resp_xml.getChildContent(alloc, "software|softwareName");
    _ = try resp_xml.getChildContent(alloc, "software|softwareOperation");
    _ = try resp_xml.getChildContent(alloc, "software|softwareMainVersion");
    _ = try resp_xml.getChildContent(alloc, "software|softwareDevName");
    _ = try resp_xml.getChildContent(alloc, "software|softwareDevContact");
    _ = try resp_xml.getChildContent(alloc, "software|softwareDevCountryCode");
    _ = try resp_xml.getChildContent(alloc, "software|softwareDevTaxNumber");
    _ = try resp_xml.getChildContent(alloc, "transactionId");
}