AFNetworking with XML request body

APIClient.h

#import <Foundation/Foundation.h>

#import "AFHTTPClient.h"

@interface APIClient : AFHTTPClient

+ (APIClient *)sharedClient;

@end

APIClient.m

#import "APIClient.h"

#import "AFXMLRequestOperation.h"

// Define our additional parameter encoding
enum {
    XMLParameterEncoding = 10
};

@interface APIClient()

- (void)addHTTPBodyToRequest:(NSMutableURLRequest *)request
              withParameters:(NSDictionary *)parameters
                     charset:(NSString *)charset;

@end


#pragma mark -

@implementation APIClient

// We override this method so that we can properly set the request body
- (NSMutableURLRequest *)requestWithMethod:(NSString *)method path:(NSString *)path parameters:(NSDictionary *)parameters
{
    NSMutableURLRequest *request = [super requestWithMethod:method path:path parameters:parameters];
    NSSet *methodsWithNoBody = [NSSet setWithObjects:@"GET", @"HEAD", @"DELETE", nil];
    
    if (parameters != nil && ![methodsWithNoBody containsObject:method])
    {
        NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(self.stringEncoding));
        [self addHTTPBodyToRequest:request withParameters:parameters charset:charset];
    }
    
    return request;
}

- (void)addHTTPBodyToRequest:(NSMutableURLRequest *)request withParameters:(NSDictionary *)parameters charset:(NSString *)charset
{
    switch (self.parameterEncoding)
    {
        case XMLParameterEncoding:  // If it's our custom encoding...
        {
            [request setValue:[NSString stringWithFormat:@"application/xml; charset=%@", charset] forHTTPHeaderField:@"Content-Type"];
            
            // Create the request body
            NSMutableString *body = [NSMutableString string];
            // ** Append your XML request to the body string here **
            
            [request setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
            break;
        }
        default:
        {
            break;
        }
    }
    
    // ** Set any additional headers, etc here **
}

+ (APIClient *)sharedClient
{
    static APIClient *sharedClient = nil;
    
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^(void)
    {
        NSURL *baseURL = [NSURL URLWithString:@"https://yourserver.com/path/to/your/api/"];
        sharedClient = [[self alloc] initWithBaseURL:baseURL];
        
        [sharedClient registerHTTPOperationClass:[AFXMLRequestOperation class]];
        
        // ** Set any default headers **
        [sharedClient setDefaultHeader:@"my-header" value:@"blah"];
        
        // Use our custom parameter encoding
        sharedClient.parameterEncoding = XMLParameterEncoding;
    });
    
    return sharedClient;
}

@end

could you show how to use it? thx.

would appreciate any tutorial/working sample code.

thanks.