使用RestKit进行同步HTTP调用 [英] Make a synchronous HTTP call with RestKit

问题描述

将用户登录到我的应用程序时，我需要仅使用用户名从服务器中删除用户对象。这将返回我需要的userId（以及其他内容）以进行其他API调用。从那时起，我将使用userId进行一些其他HTTP调用。如何在发送其他调用之前进行同步调用以完全拉下用户对象？

When logging a user into my application I need to pull a user object down from the server using only the username. This returns the userId (among other things) that I need in order to make other API calls. From that point I'll make a couple other HTTP calls using the userId. How can I make a synchronous call to completely pull down the user object before sending the other calls?

我在我的app delegate类中设置了我的对象映射，完美，并使用此代码从服务器拉下用户对象：

I've setup my object mapping in my app delegate class, which works perfectly, and am using this code to pull the user object down from the server:

[[RKObjectManager sharedManager] loadObjectsAtResourcePath:[@"/api/users/" stringByAppendingString:[_userNameField text]] delegate:self];

这是我尝试过的......如下所示：使用RestKit进行同步通话

This is what I've tried... as suggested here: Making synchronous calls with RestKit

RKObjectLoader* loader = [[RKObjectManager sharedManager] objectLoaderForObject:currentUser method:RKRequestMethodPUT delegate:nil];
RKResponse* response = [loader sendSynchronously];

但是这段代码（1）使用了弃用的方法objectLoaderForObject和（2）崩溃说'无法为HTTP方法'POST''找到类型为'（null）'的对象的可路由路径。

However this code (1) uses the deprecated method objectLoaderForObject and (2) crashes saying 'Unable to find a routable path for object of type '(null)' for HTTP Method 'POST''.

推荐答案

撇开这是否是iPhone应用程序的理想设计的问题，我能够完成我所希望的使用块。

Putting aside the question of whether this is the ideal design for an iPhone application, I was able to accomplish what I was hoping using blocks.

[[RKObjectManager sharedManager] loadObjectsAtResourcePath:[@"/api/users/" stringByAppendingString:[_userNameField text]] usingBlock:^(RKObjectLoader* loader) {

    loader.onDidLoadResponse = ^(RKResponse *response) {

        NSLog(@"Response: \n%@", [response bodyAsString]);
    };

    loader.onDidLoadObjects = ^(NSArray *objects) {

        APIUser *apiUser = [objects objectAtIndex:0];
        NSLog(@"user_id is %i", apiUser.user_id);


    };

    loader.onDidFailWithError = ^(NSError *error) {


            UIAlertView *badLoginAlert = [[UIAlertView alloc]initWithTitle:NSLocalizedString(@"LOGIN_FAILED", nil)
                                                                   message:NSLocalizedString(@"BAD PASSWORD OR USERNAME", nil)
                                                                  delegate:self
                                                         cancelButtonTitle:NSLocalizedString(@"OK", nil)
                                                         otherButtonTitles:nil];
            [badLoginAlert show];           
    };
}];

希望这有助于某人。

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