如何通过restkit从api获取数据

Question

我从restkit开始，并有一个简单的帖子发送到api：

http://myapi.com/api/stats

发布参数：format=json

api回归：

{"cache_count":121,"user_count":322,"apps_count":1,"apps_active":47}

你能给我一个例子，说明如何在我的案例中使用restkit吗？

编辑：

我试过了：

NSURL *url = [[NSURL alloc] initWithString:@"http://myapi.com"];
    RKObjectManager *manager = [RKObjectManager managerWithBaseURL:url];
    NSDictionary *tmp = @{@"format": @"json"};

    [manager postObject:tmp path:@"/okapi/services/apisrv/stats" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
            NSDictionary *result = [mappingResult dictionary];

            if([[result objectForKey:@"success"] isEqualToNumber:[NSNumber numberWithInt:1]]){

                // some code
            }
        }

        failure:^(RKObjectRequestOperation *operation, NSError *error) {
            NSLog(@"Error: %@", error);
        }];

但我收到错误：

Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No response descriptors match the response loaded."