i am able to send request correctly but after receiving response i get
response.body ={"status":"success","loginToken":"xxxxyyyzzz"}
but with an error saying
It Failed: Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No response descriptors
match the response loaded." UserInfo=0x2b55b0 {NSErrorFailingURLStringKey=http://192.168.1.71
/firstyii/index.php?r=site/login, NSLocalizedFailureReason=A 200 response was loaded from the
URL 'http://192.168.1.71/firstyii/index.php?r=site/login', which failed to match all (1)
response descriptors:
<RKResponseDescriptor: 0x2a5860 baseURL=http://192.168.1.71 pathPattern=/firstyii
/index.php?r=site/login statusCodes=200-299> failed to match: response path '/firstyii
/index.php?r=site/login' did not match the path pattern '/firstyii/index.php?r=site/login'.,
NSLocalizedDescription=No response descriptors match the response loaded., keyPath=null,
NSErrorFailingURLKey=http://192.168.1.71/firstyii/index.php?r=site/login,
NSUnderlyingError=0x2b6070 "No mappable object representations were found at the key paths
searched."}
LoginResponse.h
#interface LoginResponse : NSObject
#property (nonatomic, strong) NSString *status;
#property (nonatomic, strong) NSString *loginToken;
+(RKObjectMapping*)defineLoginResponseMapping;
#end
LoginResponse.m
#import "LoginResponse.h"
#implementation LoginResponse
#synthesize loginToken;
#synthesize status;
+(RKObjectMapping*)defineLoginResponseMapping {
RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[LoginResponse class]];
[mapping addAttributeMappingsFromDictionary:#{
#"status": #"status",
#"loginToken": #"loginToken",
}];
return mapping;
}
#end
Code in LoginManager.m
-(void)LoginWithUserName:(NSString *)username password:(NSString*)password {
LoginRequest *dataObject = [[LoginRequest alloc] init];
[dataObject setUsername:username];
[dataObject setPassword:password];
NSURL *baseURL = [NSURL URLWithString:#"http://192.168.1.71"];
AFHTTPClient * client = [AFHTTPClient clientWithBaseURL:baseURL];
[client setDefaultHeader:#"Accept" value:RKMIMETypeJSON];
RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];
[RKMIMETypeSerialization registerClass:[RKNSJSONSerialization class]
forMIMEType:#"application/json"];
RKObjectMapping *requestMapping = [[LoginRequest defineLoginRequestMapping] inverseMapping];
[objectManager addRequestDescriptor: [RKRequestDescriptor
requestDescriptorWithMapping:requestMapping objectClass:[LoginRequest class] rootKeyPath:nil
]];
// what to print
RKLogConfigureByName("RestKit/Network", RKLogLevelTrace);
RKLogConfigureByName("Restkit/Network", RKLogLevelDebug);
RKObjectMapping *responseMapping = [LoginResponse defineLoginResponseMapping];
[objectManager addResponseDescriptor:[RKResponseDescriptor
responseDescriptorWithMapping:responseMapping pathPattern:#"/firstyii/index.php?r=site/login"
keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]];
[objectManager setRequestSerializationMIMEType: RKMIMETypeJSON];
[objectManager postObject:dataObject path:#"/firstyii/index.php?r=site/login"
parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
NSLog(#"It Worked: %#", [mappingResult array]);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(#"It Failed: %#", error);
}];
}
i think that the code used above is to map response with array ,
so i need code to map simple json like this one response.body={"status":"success","loginToken":"logingngngnnggngngae"}
Such responses are to be mapped using pathpattern , non keyvalue mapping mentioned at https://github.com/RestKit/RestKit/wiki/Object-mapping.
I was using pathPattern having "?" in it , hence it was not matching properly.
,also path pattern shouldnot have "/" at beginning.
the above code works fine if i change the pathPattern to pathPattern:#"site/login"
,and postObject to postObject:#"site/login"
and ofcourse changed the baseurl = #"http://json.xxxxxxx.xxxxx:8179/jsonresponse/index.php" so that there are not special charaters in it.
Related
I am learning Rest-kit. i am trying to parse this url https://api.coursera.org/api/catalog.v1/courses?fields=language,shortDescription
I have created one Courses class.
#interface Courses : NSObject
#property (nonatomic, strong) NSString *name;
#end
and in viewcontroller i have wrote below code
- (void)viewDidLoad
{
[super viewDidLoad];
[self configureRestKit];
[self loadCourses];
}
- (void)configureRestKit
{
// https://api.coursera.org/api/catalog.v1/courses?fields=language,shortDescription
// initialize AFNetworking HTTPClient
NSURL *baseURL = [NSURL URLWithString:#"https://api.coursera.org"];
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
// initialize RestKit
RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];
// setup object mappings
RKObjectMapping *courseMapping = [RKObjectMapping mappingForClass:[Courses class]];
[courseMapping addAttributeMappingsFromDictionary:#{
#"name":#"name"
}];
// register mappings with the provider using a response descriptor
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:courseMapping method:RKRequestMethodGET pathPattern:#"/api/catalog.v1/courses?fields=language,shortDescription" keyPath:#"elements" statusCodes:[NSIndexSet indexSetWithIndex:200]];
[objectManager addResponseDescriptor:responseDescriptor];
}
- (void)loadCourses
{
[[RKObjectManager sharedManager] getObjectsAtPath:#"/api/catalog.v1/courses?fields=language,shortDescription" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
NSLog(#"%#", mappingResult.array);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(#"What do you mean by 'there is no Courses?': %#", error);
}];
}
ERROR :_Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No response descriptors match the response loaded."
I am not getting response in success block. Please correct me. Thanks in advance
Don't add your query parameters to the path pattern on the response descriptor, and set them as parameters on the request:
pathPattern:#"/api/catalog.v1/courses"
generally I would also say that /api/catalog.v1/ should be part of the base URL so you would have:
NSURL *baseURL = [NSURL URLWithString:#"https://api.coursera.org/api/catalog.v1/"];
...
... pathPattern:#"courses" ...
...
... getObjectsAtPath:#"courses" parameters:#{ #"fields" : #"language,shortDescription" } ...
I'm doing a very basic POST request.
setting my requestSerializationMIMEType into RKMIMETypeFormURLEncoded as my server would expect (although it's the default).
Now in the log the request.body would look like this:
request.body=[param1]=test&[param2]=2724
Resulting unknown form values in the server.
The problem here is the param names, they're between square brackets, which I don't have an explanation why they're serialised like this!
My code is somehow exactly the same of the example provided on github.
NOTE: I have done the POST request manually without the square brackets and it's working fine.
EDIT
The code
RKObjectMapping *responseMapping = [RKObjectMapping mappingForClass:[GenericResponse class]];
[responseMapping addAttributeMappingsFromDictionary:#{#"error":#"error", #"status":#"status"}];
NSIndexSet *statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful);
RKResponseDescriptor *genericDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMapping method:RKRequestMethodAny pathPattern:#"" keyPath:#"" statusCodes:statusCodes];
RKObjectMapping *requestMapping = [RKObjectMapping requestMapping];
[requestMapping addAttributeMappingsFromDictionary:[User generateJSONMapping]];//dictionary mapping
RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:requestMapping objectClass:[User class] rootKeyPath:#"" method:RKRequestMethodPOST];
RKObjectManager *manager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:#"https://foo.com/rest/createUser/"]];
[manager addRequestDescriptor:requestDescriptor];
[manager addResponseDescriptor:genericDescriptor];
manager.requestSerializationMIMEType=RKMIMETypeFormURLEncoded;
// POST to create
[manager postObject:user path:#"" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *result) {
NSLog(#"success");// the request is success but the params are not delivered to the server
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(#"fail");
}];
The User is very simple I guess
#interface User : NSObject
#property NSNumber *idShort;
#property NSNumber *idLong;
#property NSNumber *idCom;
#property NSString *comment;
#property NSString *token;
+ (NSDictionary *) generateJSONMapping;
#end
#implementation User
+ (NSDictionary *) generateJSONMapping
{
return #{
#"idShort": #"idShort",
#"idLong": #"idLong",
#"idCom":#"idCom",
#"comment":#"comment",
#"token":#"token",
};
}
#end
The problem is in the RKRequestDescriptor, passing rootKeyPath as an empty string would cause this.
Passing nil would solve the problem.
RKRequestDescriptor *requestDescriptor = [
RKRequestDescriptor requestDescriptorWithMapping:requestMapping
objectClass:[User class]
rootKeyPath:nil
method:RKRequestMethodPOST];
I want to get this JSON data with my iOS app: https://sleepy-journey-2871.herokuapp.com/users.json .... RestKit tries to get these users from the url, but it returns 0 objects and says "No mappable representations were found at the key paths searched. No response descriptors match the response loaded."
PLEASE help me figure out what I'm missing or doing wrong! I've been battling this for weeks.
I have Xcode 5.0.2, I successfully installed RestKit with Cocoapods and a Podfile that looks like this:
platform :ios, '6.0'
pod 'RestKit', '~> 0.22.0'
pod 'RestKit/Testing'
pod 'RestKit/Search'
My AppDelegate.m file is below (the didFinishLaunchingWithOptions method):
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
//Set base url
NSString *baseUrl = #"https://sleepy-journey-2871.herokuapp.com";
//initialize the the http client with baseUrl
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:baseUrl]];
//initialize the RKObjectManager with our http client
RKObjectManager *manager = [[RKObjectManager alloc] initWithHTTPClient:httpClient];
//add text/plain as a JSON content type to properly parse errors
[RKMIMETypeSerialization registerClass:[RKNSJSONSerialization class] forMIMEType:#"text/plain"];
//register JSONRequestOperation to parse JSON in requests
[manager.HTTPClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
//state that we are accepting JSON content type
[manager setAcceptHeaderWithMIMEType:RKMIMETypeJSON];
//configure so that we want the outgoing objects to be serialized into JSON
manager.requestSerializationMIMEType = RKMIMETypeJSON;
//set the shared instance of the object manager, so that we can easily re-use it later
[RKObjectManager setSharedManager:manager];
return YES;
}
I have this code in the viewDidLoad method of the view controller that first loads when the app is launched:
- (void)viewDidLoad
{
[super viewDidLoad];
RKObjectManager *manager = [RKObjectManager sharedManager];
[manager getObjectsAtPath:#"/users"
parameters:nil
success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult)
{
NSLog(#"Loaded databases: %#", [mappingResult array]);
}
failure:^(RKObjectRequestOperation *operation, NSError *error)
{
NSLog(#"Error: %#", [error localizedDescription]);
}];
// Do any additional setup after loading the view, typically from a nib.
}
You have to:
Create a User class.
Create a mapping for User class.
Create a response descriptor.
Pseudocode could look something like:
#interface User : NSObject
#property (nonatomic, copy) NSNumber *userID;
#property (nonatomic, copy) NSString *name;
...
#end
RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[User class]];
[mapping addAttributeMappingsFromDictionary:#{
#"name": #"name",
#"id": #"userID"
...
}];
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping
method:RKRequestMethodAny
pathPattern:nil
keyPath:nil
statusCodes:nil];
...
RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc] initWithRequest:request
responseDescriptors:#[responseDescriptor]];
[operation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *result) {
NSLog(#"The public timeline Tweets: %#", [result array]);
} failure:nil];
[operation start];
Take a look at examples here.
I'm new using RestKit, but I can't understand at all how it works...
please, can somewhere explain me it??
My Json file is:
{
"colors":
{
"red":"#f00",
"green":"#0f0",
"blue":"#00f",
"cyan":"#0ff",
"magenta":"#f0f",
"yellow":"#ff0",
"black":"#000"
}
}
and the path where i'm hosting this file is: http://186.36.181.116/tesis/file.json
The code that I'm trying in my ViewDidLoad method is:
- (void)viewDidLoad
{
[super viewDidLoad];
RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[colores class]];
[mapping addAttributeMappingsFromArray:#[#"colors"]];
NSIndexSet *statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful); // Anything in 2xx
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:RKRequestMethodAny pathPattern:#"/tesis/:coloresID" keyPath:#"colors" statusCodes:statusCodes];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://186.36.181.116/tesis/file.json"]];
RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:#[responseDescriptor]];
[operation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *result) {
colores *colores = [result firstObject];
NSLog(#"Mapped the article: %#", colores);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(#"Failed with error: %#", [error localizedDescription]);
}];
[operation start];
}
My Class "colores" is as follow:
#import <Foundation/Foundation.h>
#interface colores : NSObject{}
#property (weak, nonatomic) IBOutlet NSString *colores;
#end
Thank you so much in advance!!
you can find a detailed tutorial here and full source code github.
In order to properly map responses to JSON, we must do the following things:
*Create an instance of RKEntityMapping for each entity in our managed object model
*Add mappings between JSON response keys and object properties
*Add mappings between embedded JSON objects and relationships
*Create response descriptors with the mappings
*Optional: Create request descriptors with the mappings if you plan to PUT or POST
For 2 days now, I've been trying to find out why I'm getting the error using iOS 6.1.3 with Xcode 4.6.2 and RestKit 0.20.0:
"...this class is not key value coding-compliant for the key Text."
The strange part is that I can receive (GET) the JSON object fine. The error happens when I create my sample SignalMessage object and then try to PUT it back to the server.
The JSON is as follows:
{"Text":"New Message","HasMessage":"true"}
The SignalMessage object looks like this:
#import <Foundation/Foundation.h>
#interface SignalMessage : NSObject {
}
#property (nonatomic, copy) NSString *signalText;
#property (nonatomic, retain) NSNumber *isHasMessage;
#end
And the implementation like this:
#import "SignalMessage.h"
#implementation SignalMessage
#synthesize isHasMessage, signalText;
#end
My correctly working getMessage function looks like this:
- (IBAction)getMessage:(id)sender;
{
NSLog(#"%#", #"Getting message... ");
NSURL *url = [NSURL URLWithString:#"http://ec2-54-243-148-145.compute-1.amazonaws.com/TabletPractice/api/signal?clientIdentifier=2"];
RKObjectManager *manager = [RKObjectManager managerWithBaseURL:url];
RKObjectMapping *responseMapping = [RKObjectMapping mappingForClass:[SignalMessage class]];
[responseMapping addAttributeMappingsFromDictionary:#{#"Text":#"signalText", #"HasMessage": #"isHasMessage"}];
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMapping pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[manager addResponseDescriptor:responseDescriptor];
[manager getObject:nil path:#"" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *result)
{
NSArray *theresults = [result array];
for (SignalMessage *item in theresults) {
self.txtMessage.text = item.signalText;
[self hideControls];
}
} failure:^(RKObjectRequestOperation * operation, NSError * error)
{
NSLog (#"Server WS call failure: operation: %# \n\nerror: %#", operation, error);
}];
}
And here is the sendClicked message that gives me grieve:
- (IBAction)btnSendClicked:(id)sender;
{
if ([txtMessage.text length] < 1)
return;
NSURL *url = [NSURL URLWithString:#"http://ec2-54-243-148-145.compute-1.amazonaws.com/TabletPractice/api/signal?clientIdentifier=2"];
RKObjectManager *manager = [RKObjectManager managerWithBaseURL:url];
RKObjectMapping *requestMapping = [RKObjectMapping requestMapping];
[requestMapping addAttributeMappingsFromDictionary:#{#"Text":#"signalText", #"HasMessage": #"isHasMessage"}];
RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:requestMapping
objectClass:[SignalMessage class]
rootKeyPath:#""];
[manager addRequestDescriptor:requestDescriptor];
SignalMessage *newMessage = [[SignalMessage alloc] init];
newMessage.signalText = #"Test Message";
BOOL isMsg = TRUE;
NSNumber *boolAsNumber = [NSNumber numberWithBool:isMsg];
newMessage.isHasMessage = boolAsNumber;
[manager putObject:newMessage path:#"" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *result) {
NSLog(#"We object mapped the response with the following result: %#", result);
} failure:^(RKObjectRequestOperation * operation, NSError * error)
{
NSLog (#"Server WS call failure: operation: %# \n\nerror: %#", operation, error);
}];
[self hideControls];
}
At this point, I'm at a loss.
Please add a inverse mapping to your RKRequestDescriptor in your btnSendClicked method like below:
RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor
requestDescriptorWithMapping:[requestMapping inverseMapping]
objectClass:[SignalMessage class]
rootKeyPath:#""];