如何构造 http 请求以从 iOS 应用程序创建 facebook 的开放图形对象

Question

我想通过从我的应用程序发送http请求来创建Facebook开放图对象，我不使用Facebook SDK，我使用的是社交网络框架，并通过AFNetworking构建打开图的请求。我的代码：

    - (void)didInitializeSocialAccountStore:(BOOL)succes forPermissions:(AccountStorePermissions)permissionsType
    {
        NSURLRequest *request = [self requestWithMethod:@"POST" path:[NSString stringWithFormat:@"https://graph.facebook.com/me/objects/myapp:comments?access_token=%@", [MGSocialNetworkSingleton sharedInstance].facebookAccesToken] parameters:self.exampleObject];
        if (permissionsType == AccountStorePermissions_Publish)
        {
            AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
                DLog(@"response: %@n", response);
                DLog(@"JSON: %@n", JSON);
                DLog(@"URL: %@n", request.URL);
            } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
                DLog(@"response: %@n", response);
                DLog(@"error: %@n", error);
                DLog(@"JSON: %@n", JSON);
                DLog(@"URL: %@n", response.URL);
            }];
            [operation start];
        }    
}
- (NSDictionary *)exampleObject
{
    return @{@"object":@{@"title":@"Titleeeee"}};
}

请求发出后，我得到了以下错误响应：

didInitializeSocialAccountStore:forPermissions:]_block_invoke_2[Line 432]JSON：{错误={代码=100；message="（#100）参数对象是必需的"；type=OAuthException；}；}

我也在使用这种方法：

[self registerHTTPOperationClass:[AFJSONRequestOperation class]];
[self setParameterEncoding:AFJSONParameterEncoding];
[self setDefaultHeader:@"Accept" value:@"application/json"];

因此exampleObject NSDictionary应该自动转换为JSON

编辑

这个curl命令运行良好：

卷曲-X POST"https://graph.facebook.com/me/objects/myapp:comments"-F"access_token=CAAH3rJC7RHUBAHP6NHGaa5Pr2MKlJT4X9GZBZBkc93T9TNHqoSV411eD2uvOw2XInpZCZBryY4V6OtvHP5xMDZCJfyiieTe8IB1lS68gYkNlKj6bNYfcsPZCGpamC2wWVJDkAYm9hVHI3FASDGxbHKWUQAm8JZAwblA68y8HXZA1v2EaDZAe3VabyJQ37Q5rf6JVpWiRV50dKH9XSa7I7ZAcg9QajPhWnk3PEZ D"-F"object=｛\"title \"：\"Titleeee \"｝"

Answer 1

好吧，我使用了不同的方法，它很有效，这是我的代码，也许有人不会像我那样浪费时间：

NSDictionary *parameters = @{@"title":@"work you f****r"};
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:nil];
NSString *jsonString = [[NSString alloc] initWithData:jsonData
                                             encoding:NSUTF8StringEncoding];
NSMutableURLRequest *request = [self requestWithMethod:@"POST" path:[[NSString stringWithFormat:@"%@/me/objects/website?access_token=%@&object=%@", kMGFacebookAPIBaseURLString, [MGSocialNetworkSingleton sharedInstance].facebookAccesToken, jsonString] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding] parameters:nil];

它返回：

response: {
    id = 709840849042702;
}

它适用于不同的图形对象（网站），但在这里不是问题