无法将Realm与iCloud同步

Question

我正在尝试将我的应用中的Realm与iCloud / CloudKit同步，但一直没有成功...

这是我的源代码:

-(void)sync
{
    NSURL *baseURL = [[NSFileManager defaultManager] URLForUbiquityContainerIdentifier:nil];

    if (baseURL) //iCloud is active
    {
        NSURL *serverURL = [NSURL URLWithString:@"http://myMacBookNwtworkIP:9080"]; //Realm Object Server is up and running at this URL
        RLMSyncCredential *usernameCredential = [RLMSyncCredential credentialWithUsername:@"myUsername"
                                                                                 password:@"myPassword"
                                                                                  actions:RLMAuthenticationActionsUseExistingAccount];
        RLMSyncCredential *iCloudCredential = [RLMSyncCredential credentialWithICloudToken:@"myiCloudToken"];

        [RLMSyncUser authenticateWithCredential:usernameCredential
                                  authServerURL:serverURL
                                   onCompletion:^(RLMSyncUser *user, NSError *error) {
                                       if (user) { //user recognized in my real object server
                                           // can now open a synchronized RLMRealm with this user
                                           RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
        /* CRASH AT THIS LINE! */          config.syncConfiguration = [[RLMSyncConfiguration alloc] initWithUser:user realmURL:serverURL];
                                           RLMRealm *realm = [RLMRealm realmWithConfiguration:config error:nil];// Any changes made to this Realm will be synced across all devices!
                                       } else if (error) {
                                           // handle error
                                           NSLog(@"error %@",error);
                                       }
                                   }];
    }
}

当我尝试执行

config.syncConfiguration = [[RLMSyncConfiguration alloc] initWithUser:user realmURL:serverURL];

我遇到了这个错误

提供的URL (http://myMacBookNwtworkIP:9080) 不是有效的Realm URL。

我该如何解决它？

另外，由于这是我第一次尝试在iCloud中保存数据，那我应该如何使用iCloud凭证？ 实际上，如果我将用户名凭证替换为它，则用户始终为空...

我按照以下链接中的步骤进行操作：

1. https://realm.io/docs/objc/latest/#the-realm-mobile-platform
2. https://realm.io/docs/realm-object-server/#authentication

- ddb

Answer 1

为避免崩溃，需要指定"realm"协议而非"http"，如下所示。

config.syncConfiguration = [[RLMSyncConfiguration alloc] initWithUser:user realmURL:[NSURL URLWithString:@"realm://myMacBookNwtworkIP:9080"]];

thanks to this link

- ddb