checkVatBinding / checkVat

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#import <CkoXml.h>
#import <NSString.h>
#import <CkoHttp.h>
#import <CkoHttpResponse.h>

CkoXml *xml = [[CkoXml alloc] init];
xml.Tag = @"soapenv:Envelope";
[xml AddAttribute: @"xmlns:soapenv" value: @"http://schemas.xmlsoap.org/soap/envelope/"];
[xml AddAttribute: @"xmlns" value: @"urn:ec.europa.eu:taxud:vies:services:checkVat:types"];
[xml AddAttribute: @"xmlns:impl" value: @"urn:ec.europa.eu:taxud:vies:services:checkVat"];
[xml UpdateChildContent: @"soapenv:Header" value: @""];
[xml UpdateChildContent: @"soapenv:Body|checkVat|countryCode" value: @"string"];
[xml UpdateChildContent: @"soapenv:Body|checkVat|vatNumber" value: @"string"];

// In a SOAP HTTP request, including the XML declaration (<?xml version="1.0" encoding="UTF-8"?>) in the XML body is generally not required. 
xml.EmitXmlDecl = NO;
NSString *soapRequestBody = [xml GetXml];

NSString *endpoint = @"http://ec.europa.eu/taxation_customs/vies/services/checkVatService";
NSString *soapAction = @"";
//  For SOAP requests, the standard Content-Type is usually set to "text/xml" or "application/soap+xml"
NSString *contentType = @"text/xml";

CkoHttp *http = [[CkoHttp alloc] init];

[http ClearHeaders];
[http SetRequestHeader: @"Content-Type" value: contentType];
[http SetRequestHeader: @"SOAPAction" value: soapAction];

CkoHttpResponse *resp = [http PostXml: endpoint xmlDoc: soapRequestBody charset: @"utf-8"];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    NSLog(@"%@",@"Failed to send SOAP request.");
    return;
}

// Get the XML response body.
CkoXml *responseXml = [[CkoXml alloc] init];
[resp GetBodyXml: responseXml];

int statusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"response status code: ",statusCode);

// If the status code does not indicate succcess, then show the response XML,
// which probably contains error information.
if (statusCode != 200) {
    NSLog(@"%@",[responseXml GetXml]);
    return;
}

NSLog(@"%@",[responseXml GetXml]);

// Parse the successful SOAP response XML.

// This is a sample of the response XML, but the namespace prefixes will be different.
// We can parse the result using "*" for the namespace prefixes (see below).

NSString *Envelope_xmlns = [responseXml GetAttrValue: @"xmlns"];
NSString *countryCode = [responseXml GetChildContent: @"*:Body|checkVatResponse|countryCode"];
NSString *vatNumber = [responseXml GetChildContent: @"*:Body|checkVatResponse|vatNumber"];
NSString *requestDate = [responseXml GetChildContent: @"*:Body|checkVatResponse|requestDate"];
NSString *valid = [responseXml GetChildContent: @"*:Body|checkVatResponse|valid"];
NSString *name = [responseXml GetChildContent: @"*:Body|checkVatResponse|name"];
NSString *address = [responseXml GetChildContent: @"*:Body|checkVatResponse|address"];

Request XML

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns="urn:ec.europa.eu:taxud:vies:services:checkVat:types" xmlns:impl="urn:ec.europa.eu:taxud:vies:services:checkVat">
    <soapenv:Header/>
    <soapenv:Body>
        <checkVat>
            <countryCode>string</countryCode>
            <vatNumber>string</vatNumber>
        </checkVat>
    </soapenv:Body>
</soapenv:Envelope>

Response XML

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns="urn:ec.europa.eu:taxud:vies:services:checkVat:types" xmlns:impl="urn:ec.europa.eu:taxud:vies:services:checkVat">
    <soapenv:Header/>
    <soapenv:Body>
        <checkVatResponse>
            <countryCode>string</countryCode>
            <vatNumber>string</vatNumber>
            <requestDate>date</requestDate>
            <valid>true</valid>
            <name>string</name>
            <address>string</address>
        </checkVatResponse>
    </soapenv:Body>
</soapenv:Envelope>