(C# UWP/WinRT) Magyar Nemzeti Bank (MNB) Get Currencies

The Magyar Nemzeti Bank (MNB) is the central bank of Hungary. In this role, its primary objective is to achieve and maintain price stability. The MNB website is available to visitors in both Hungarian and English. The MNB provides the Arfolyam (trans. Exchange Rate) API, which can be used to retrieve current and historic currency exchange rates. This service uses SOAP calls issued in XML format.

This example gets a list of currencies.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

//  URL: http://www.mnb.hu/arfolyamok.asmx
bool bTls = false;
int port = 80;
bool bAutoReconnect = true;
success = await rest.ConnectAsync("www.mnb.hu",port,bTls,bAutoReconnect);
if (success != true) {
    Debug.WriteLine("ConnectFailReason: " + Convert.ToString(rest.ConnectFailReason));
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Chilkat.Xml xml = new Chilkat.Xml();
xml.Tag = "soapenv:Envelope";
xml.AddAttribute("xmlns:soapenv","http://schemas.xmlsoap.org/soap/envelope/");
xml.AddAttribute("xmlns:web","http://www.mnb.hu/webservices/");
xml.UpdateChildContent("soapenv:Header","");
xml.UpdateChildContent("soapenv:Body|web:GetCurrencies","");

rest.AddHeader("Content-Type","text/xml");
rest.AddHeader("SOAPAction","/webservices/MNBArfolyamServiceSoap/GetCurrencies");
rest.AddHeader("Accept","application/xml");

Chilkat.StringBuilder sbRequestBody = new Chilkat.StringBuilder();
xml.GetXmlSb(sbRequestBody);
Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = await rest.FullRequestSbAsync("POST","/arfolyamok.asmx",sbRequestBody,sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

int respStatusCode = rest.ResponseStatusCode;
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(rest.ResponseHeader);
    Debug.WriteLine("Response Body:");
    Debug.WriteLine(sbResponseBody.GetAsString());
    return;
}

Debug.WriteLine("response status code = " + Convert.ToString(respStatusCode));

Chilkat.Xml xmlResponse = new Chilkat.Xml();
xmlResponse.LoadSb(sbResponseBody,true);
Debug.WriteLine(xmlResponse.GetXml());

//  The XML response contains this:
//  <?xml version="1.0" encoding="utf-8" ?>
//  <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
//      <s:Body>
//          <GetCurrenciesResponse xmlns="http://www.mnb.hu/webservices/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
//              <GetCurrenciesResult>&lt;MNBCurrencies&gt;&lt;Currencies&gt;&lt;Curr&gt;HUF&lt;/Curr&gt;&lt;Curr&gt;EUR&lt;/Curr&gt;&lt;Curr&gt;AUD&lt;/Curr&gt; ... &lt;/MNBCurrencies&gt;</GetCurrenciesResult>
//          </GetCurrenciesResponse>
//      </s:Body>
//  </s:Envelope>

//  Get the GetCurrenciesResult
string resultEncoded = xmlResponse.GetChildContent("s:Body|GetCurrenciesResponse|GetCurrenciesResult");
Debug.WriteLine(resultEncoded);

//  Entity decode the result to get XML.
Chilkat.StringBuilder sbResult = new Chilkat.StringBuilder();
sbResult.Append(resultEncoded);
sbResult.EntityDecode();

//  Load it into XML.
Chilkat.Xml xmlResult = new Chilkat.Xml();
xmlResult.LoadSb(sbResult,true);
Debug.WriteLine(xmlResult.GetXml());

//  The result is this:

//  <?xml version="1.0" encoding="utf-8" ?>
//  <MNBCurrencies>
//      <Currencies>
//          <Curr>HUF</Curr>
//          <Curr>EUR</Curr>
//          <Curr>AUD</Curr>
//          <Curr>BGN</Curr>
//          <Curr>BRL</Curr>
//          <Curr>CAD</Curr>
//          <Curr>CHF</Curr>
//          <Curr>CNY</Curr>
//          <Curr>CZK</Curr>
//          <Curr>DKK</Curr>
//          <Curr>GBP</Curr>
//          <Curr>HKD</Curr>
//          <Curr>HRK</Curr>
//          <Curr>IDR</Curr>
//          <Curr>ILS</Curr>
//          <Curr>INR</Curr>
//          <Curr>ISK</Curr>
//          <Curr>JPY</Curr>
//          <Curr>KRW</Curr>
//          <Curr>MXN</Curr>
//          <Curr>MYR</Curr>
//          <Curr>NOK</Curr>
//          <Curr>NZD</Curr>
//          <Curr>PHP</Curr>
//          <Curr>PLN</Curr>
//          <Curr>RON</Curr>
//          <Curr>RSD</Curr>
//          <Curr>RUB</Curr>
//          <Curr>SEK</Curr>
//          <Curr>SGD</Curr>
//          <Curr>THB</Curr>
//          <Curr>TRY</Curr>
//          <Curr>UAH</Curr>
//          <Curr>USD</Curr>
//          <Curr>ZAR</Curr>
//          <Curr>ATS</Curr>
//          <Curr>AUP</Curr>
//          <Curr>BEF</Curr>
//          <Curr>BGL</Curr>
//          <Curr>CYN</Curr>
//          <Curr>CSD</Curr>
//          <Curr>CSK</Curr>
//          <Curr>DDM</Curr>
//          <Curr>DEM</Curr>
//          <Curr>EEK</Curr>
//          <Curr>EGP</Curr>
//          <Curr>ESP</Curr>
//          <Curr>FIM</Curr>
//          <Curr>FRF</Curr>
//          <Curr>GHP</Curr>
//          <Curr>GRD</Curr>
//          <Curr>IEP</Curr>
//          <Curr>ITL</Curr>
//          <Curr>KPW</Curr>
//          <Curr>KWD</Curr>
//          <Curr>LBP</Curr>
//          <Curr>LTL</Curr>
//          <Curr>LUF</Curr>
//          <Curr>LVL</Curr>
//          <Curr>MNT</Curr>
//          <Curr>NLG</Curr>
//          <Curr>OAL</Curr>
//          <Curr>OBL</Curr>
//          <Curr>OFR</Curr>
//          <Curr>ORB</Curr>
//          <Curr>PKR</Curr>
//          <Curr>PTE</Curr>
//          <Curr>ROL</Curr>
//          <Curr>SDP</Curr>
//          <Curr>SIT</Curr>
//          <Curr>SKK</Curr>
//          <Curr>SUR</Curr>
//          <Curr>VND</Curr>
//          <Curr>XEU</Curr>
//          <Curr>XTR</Curr>
//          <Curr>YUD</Curr>
//      </Currencies>
//  </MNBCurrencies>
//