error while call web service with restkit api objective c - ios

Question

I am trying to call web service and upload image,
There is a problem in the mapping, and I have spent many hours on it without success. The error I am getting is:
Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No mappable
object representations were found at the key paths searched."
UserInfo={NSLocalizedDescription=No mappable object representations
were found at the key paths searched., NSLocalizedFailureReason=The
mapping operation was unable to find any nested object representations
at the key paths searched: user The representation inputted to the
mapper was found to contain nested object representations at the
following key paths: message, success This likely indicates that you
have misconfigured the key paths for your mappings., keyPath=null,
DetailedErrors=( )}
and there method that call web service
[SVProgressHUD show];
[delegate.objectManager.HTTPClient.defaultHeaders setValue:#"application/x-www-form-urlencoded" forKey:#"content-type" ];
RKObjectMapping *responseMapping = [RKObjectMapping mappingForClass:[SignUpResponse class]]; //create response and request mapping
[responseMapping addAttributeMappingsFromDictionary:#{#"phone": #"phone",
#"device_type": #"device_type",
#"device_token": #"device_token",
#"type": #"type",
#"email": #"email",
#"identity": #"identity",
#"date": #"date",
#"status": #"status",
#"name": #"name",
#"activation": #"activation",
#"image": #"image",
#"id": #"id"
}];
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMapping
method:RKRequestMethodPOST
pathPattern:#"AgentRegister"
keyPath:#"user"
statusCodes:[NSIndexSet indexSetWithIndex:200]];
[delegate.objectManager.defaultHeaders setValue:#"application/x-www-form-urlencoded" forKey:#"content-type" ];
delegate.objectManager.requestSerializationMIMEType =RKMIMETypeFormURLEncoded;
[delegate.objectManager removeResponseDescriptor:responseDescriptor];
[delegate.objectManager addResponseDescriptor:responseDescriptor];
NSString *fcmToken = [FIRInstanceID instanceID].token;
SignUpRequest *signUpRequest = [[SignUpRequest alloc]init];
signUpRequest.phone = txtPhoneNumber.text;
signUpRequest.email = txtEmail.text;
signUpRequest.identity=txtIdOrCity.text;
signUpRequest.device_type=#"IOS";
signUpRequest.device_token=fcmToken;
signUpRequest.type=#"1";
UIImage *image = [UIImage imageNamed:#"Logo"];
// Serialize the Article attributes then attach a file
NSMutableURLRequest *request = [[RKObjectManager sharedManager] multipartFormRequestWithObject:signUpRequest method:RKRequestMethodPOST path:#"AgentRegister" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:UIImagePNGRepresentation(image)
name:#"image"
fileName:#"photo.png"
mimeType:#"application/x-www-form-urlencoded"];
}];
RKObjectRequestOperation *operation = [[RKObjectManager sharedManager] objectRequestOperationWithRequest:request success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult){
[SVProgressHUD dismiss];
if(mappingResult.array.count !=0){
[self performSegueWithIdentifier:#"goToVerify" sender:self];
}else{
}
[delegate.objectManager removeResponseDescriptor:responseDescriptor];
}failure:^(RKObjectRequestOperation *operation, NSError *error){
[SVProgressHUD dismiss];
NSLog(#"%#",error.description);
UIAlertController *alert = [UIAlertController alertControllerWithTitle:#".."
message:#"حدث خطاء ما .. حاول مرة اخري" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:#"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}];
[alert addAction:okAction];
[self presentViewController:alert animated:YES completion:nil];
[delegate.objectManager removeResponseDescriptor:responseDescriptor];
}];
[[RKObjectManager sharedManager] enqueueObjectRequestOperation:operation];
}

Answer 1

This error is telling you that nothing was available at the user path. For instance, if your response is JSON, there would be no root key called user, only message and success:
{
"user": "<- This key doesnt exist",
"message": "<- There is something here",
"success": "<- There is also something here"
}
You most likely need to change your keyPath from user to something like success.user.