Files
RestKit/Code/Network/RKClient.h
2010-10-01 14:26:21 -04:00

138 lines
4.6 KiB
Objective-C

//
// RKClient.h
// RestKit
//
// Created by Blake Watters on 7/28/09.
// Copyright 2009 Two Toasters. All rights reserved.
//
#import "RKRequest.h"
#import "RKParams.h"
#import "RKResponse.h"
#import "NSDictionary+RKRequestSerialization.h"
/**
* RKClient exposes the low level client interface for working
* with HTTP servers and RESTful services. It wraps the request/response
* cycle with a clean, simple interface.
*/
@interface RKClient : NSObject {
NSString* _baseURL;
NSString* _username;
NSString* _password;
NSMutableDictionary* _HTTPHeaders;
}
/**
* The base URL all resources are nested underneath
*/
@property(nonatomic, retain) NSString* baseURL;
/**
* The username to use for authentication via HTTP AUTH
*/
@property(nonatomic, retain) NSString* username;
/**
* The password to use for authentication via HTTP AUTH
*/
@property(nonatomic, retain) NSString* password;
/**
* A dictionary of headers to be sent with each request
*/
@property(nonatomic, readonly) NSDictionary* HTTPHeaders;
/**
* Return the configured singleton instance of the Rest client
*/
// TODO: Should be sharedClient/globalClient?
+ (RKClient*)client;
/**
* Set the shared singleton issue of the Rest client
*/
// TODO: Should be sharedClient/globalClient?
+ (void)setClient:(RKClient*)client;
/**
* Return a Rest client scoped to a particular base URL. If the singleton client is nil, the return client is set as the singleton
*/
+ (RKClient*)clientWithBaseURL:(NSString*)baseURL;
/**
* Return a Rest client scoped to a particular base URL with a set of HTTP AUTH credentials. If the singleton client is nil, the return client is set as the singleton
*/
+ (RKClient*)clientWithBaseURL:(NSString*)baseURL username:(NSString*)username password:(NSString*)password;
/**
* Will check for network connectivity (to google.com)
*/
- (BOOL)isNetworkAvailable;
/**
* Adds an HTTP header to each request dispatched through the Rest client
*/
- (void)setValue:(NSString*)value forHTTPHeaderField:(NSString*)header;
/**
* Returns a resource path with a dictionary of query parameters URL encoded and appended
*/
- (NSString*)resourcePath:(NSString*)resourcePath withQueryParams:(NSDictionary*)queryParams;
/**
* Returns a NSURL by adding a resource path to the base URL
*/
- (NSURL*)URLForResourcePath:(NSString*)resourcePath;
/**
* Returns a NSURL by adding a resource path to the base URL and appending a URL encoded set of query parameters
*/
- (NSURL*)URLForResourcePath:(NSString *)resourcePath queryParams:(NSDictionary*)queryParams;
/**
* Return a request object targetted at a resource path relative to the base URL. By default the method is set to GET
* All headers set on the client will automatically be applied to the request as well.
*/
- (RKRequest*)requestWithResourcePath:(NSString*)resourcePath delegate:(id)delegate callback:(SEL)callback;
///////////////////////////////////////////////////////////////////////////////////////////////////////////
// Asynchronous Helper Methods
///////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* These methods are provided as a convenience to cover the common asynchronous request tasks. All other request
* needs should instantiate a request via requestWithResourcePath:delegate:callback and work with the RKRequest
* object directly.
*/
/**
* Fetch a resource via an HTTP GET and invoke a callback with the result
*/
- (RKRequest*)get:(NSString*)resourcePath delegate:(id)delegate callback:(SEL)callback;
/**
* Fetch a resource via an HTTP GET with a dictionary of params and invoke a callback with the resulting payload
*
* Note that this request _only_ allows NSDictionary objects as the params. The dictionary will be coerced into a URL encoded
* string and then appended to the resourcePath as the query string of the request.
*/
- (RKRequest*)get:(NSString*)resourcePath queryParams:(NSDictionary*)queryParams delegate:(id)delegate callback:(SEL)callback;
/**
* Create a resource via an HTTP POST with a set of form parameters and invoke a callback with the resulting payload
*/
- (RKRequest*)post:(NSString*)resourcePath params:(NSObject<RKRequestSerializable>*)params delegate:(id)delegate callback:(SEL)callback;
/**
* Update a resource via an HTTP PUT and invoke a callback with the resulting payload
*/
- (RKRequest*)put:(NSString*)resourcePath params:(NSObject<RKRequestSerializable>*)params delegate:(id)delegate callback:(SEL)callback;
/**
* Destroy a resource via an HTTP DELETE and invoke a callback with the resulting payload
*/
- (RKRequest*)delete:(NSString*)resourcePath delegate:(id)delegate callback:(SEL)callback;
@end