iphone - RestKit send post request, parse the result? -

i'm trying pull data web service api , parse received json... i've been though restkit tutorials, couldn't find information on doing post request!

right have code:

-(void) loadperformers { // create our request mapping rkobjectmapping* requestmapping = [rkobjectmapping mappingforclass:[jsonoperationmodel class]]; [requestmapping addattributemappingsfromarray:@[@"requesttype"]];  // create our data mapping rkobjectmapping* datamapping = [rkobjectmapping mappingforclass:[datamodel class] ]; [datamapping addattributemappingsfromarray:@[@"status"]];  // create our performer mapping rkobjectmapping* performermapping = [rkobjectmapping mappingforclass:[performermodel class] ]; [performermapping addattributemappingsfromarray:@[@"idperformer", @"name", @"rate",                                                   @"isinwatch", @"rating", @"pictureurl", @"lastmodifieddate"]];  // create our talent mapping rkobjectmapping* talentmapping = [rkobjectmapping mappingforclass:[datamodel class] ]; [talentmapping addattributemappingsfromarray:@[@"id", @"value"]];  // define relationship mapping request -> data [requestmapping addpropertymapping:[rkrelationshipmapping relationshipmappingfromkeypath:@"data"                                                                                tokeypath:@"data"                                                                              withmapping:datamapping]]; // define relationship mapping data -> performers [requestmapping addpropertymapping:[rkrelationshipmapping relationshipmappingfromkeypath:@"performers"                                                                                tokeypath:@"performers"                                                                              withmapping:performermapping]]; // define relationship mapping performer -> talent [requestmapping addpropertymapping:[rkrelationshipmapping relationshipmappingfromkeypath:@"talents"                                                                                tokeypath:@"talents"                                                                              withmapping:talentmapping]];  rkresponsedescriptor *responsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:jsonoperationmapping pathpattern:nil keypath:nil statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)];  nsurl *url = [nsurl urlwithstring:@"http://10.10.5.106:8089/mobile/default.ashx"]; nsurlrequest *request = [nsurlrequest requestwithurl:url]; rkobjectrequestoperation *objectrequestoperation = [[rkobjectrequestoperation alloc] initwithrequest:request responsedescriptors:@[ responsedescriptor]]; [objectrequestoperation setcompletionblockwithsuccess:^(rkobjectrequestoperation *operation, rkmappingresult *mappingresult) {     rkloginfo(@"result: %@", mappingresult.array); } failure:^(rkobjectrequestoperation *operation, nserror *error) {     rklogerror(@"operation failed error: %@", error); }];  [objectrequestoperation start]; } 

which sample on official tutorial of restkit, modified needs according json. how can adapt sample send json string url, , fetch server anwser?

i couldn't find information on that, , each of server response needs client information sent through json string before being able send response client. (it's isn't fetching url current sample does!)

thanks input on this!