gistfile1.m

//
//  RAPIUtils.h
//  RKit
//
//  Created by Alex Rezit on 08/11/2012.
//  Copyright (c) 2012 Seymour Dev. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface RAPIUtils : NSObject

// URL & body
+ (NSURL *)urlWithRoot:(NSString *)root subpathFormat:(NSString *)subpathFormat, ...;
+ (NSData *)postBodyWithEncodedFormat:(NSString *)format, ...;

// Request
+ (NSDictionary *)jsonByPostRequestForURL:(NSURL *)url withPostBody:(NSData *)postBody;

@end


//
//  RAPIUtils.m
//  RKit
//
//  Created by Alex Rezit on 08/11/2012.
//  Copyright (c) 2012 Seymour Dev. All rights reserved.
//

#import "RAPIUtils.h"

@implementation RAPIUtils

#pragma mark - URL & body

+ (NSURL *)urlWithRoot:(NSURL *)rootURL subpathFormat:(NSString *)subpathFormat, ...
{
    va_list args;
    va_start(args, subpathFormat);
    NSString *subpathString = [[[NSString alloc] initWithFormat:subpathFormat arguments:args] autorelease];
    va_end(args);
    NSURL *url = [NSURL URLWithString:subpathString relativeToURL:rootURL];
    return url;
}

+ (NSData *)postBodyWithEncodedFormat:(NSString *)format, ...
{
    va_list args;
    va_start(args, format);
    NSString *postBodyString = [[[NSString alloc] initWithFormat:format arguments:args] autorelease];
    NSData *postBody = [postBodyString dataUsingEncoding:NSUTF8StringEncoding];
    return postBody;
}

#pragma mark - Request

+ (NSDictionary *)jsonByPostRequestForURL:(NSURL *)url withPostBody:(NSData *)postBody
{
    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] initWithURL:url] autorelease];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:postBody];
    NSHTTPURLResponse *response;
    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:NULL];
    if (response.statusCode == 200) {
        NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingAllowFragments error:NULL];
        return responseDictionary;
    }
    return nil;
}

@end