使用SLRequest将多个图像上传到脸书 [英] upload multiple images to facebook using SLRequest

问题描述

SDK Way（工作完美）：

  FBSDKSharePhotoContent * content = [[FBSDKSharePhotoContent alloc] init]; 
 
 NSMutableArray * uploadImages = [[NSMutableArray alloc] init]; 
（UIImage *图像中的图像）{
 FBSDKSharePhoto * sharePhoto = [[FBSDKSharePhoto alloc] init]; 
 sharePhoto.caption = title; 
 sharePhoto.image = image; 
 
 [uploadImages addObject：sharePhoto]; 
} 
 content.photos = [NSArray arrayWithArray：uploadImages]; 
 
 [FBSDKShareAPI shareWithContent：content delegate：self]; 
  

和SLRequest方式（仅发送1张图片）：

$ b $ （NSString *）title帐户：（ACAccount *）account completionBlock：（shareSocialResponse）完成
{$（$）$ {code
SLRequest * facebookRequest = [SLRequest requestForServiceType：SLServiceTypeFacebook
requestMethod：SLRequestMethodPOST
URL：[NSURL URLWithString：@https://graph.facebook.com/me/photos]
参数：@ {@message：title}];

for（NSData * imageData in imagesData）{
[facebookRequest addMultipartData：imageData
withName：@source
type：@multipart / form-data
filename：@photo！];
}
NSLog（@facebookRequest％@，facebookRequest）;
facebookRequest.account = account;
[facebookRequest performRequestWithHandler：^（NSData * responseData，NSHTTPURLResponse * urlResponse，NSError * error）
{
if（error）{
NSLog（@％@，error描述）;

} else {
NSDictionary * returnedData = [NSJSONSerialization JSONObjectWithData：responseData options：NSJSONReadingMutableContainers error：& error];
NSLog（@returnedData：％@，[[NSString alloc] initWithData：responseData encoding：NSUTF8StringEncoding]）;

if（[urlResponse statusCode]！= 200）{

dispatch_async（dispatch_get_main_queue（），^ {
NSString * errorMessage = @我们无法处理您的请求现在;
if（[ReturnsData valueForKeyPath：@error.message]！= nil）{
errorMessage = [returnedData valueForKeyPath：@error.message];
}
完成（NO，errorMessage）;
}）;
} else {
完成（YES，@您的剪辑已发布！）;
}
}
}];
}

我相信如果每个数据发送在多部分可能会工作，但不是。

任何人都有任何想法如何做？谢谢。

解决方案

在facebook文档中有一些可能会帮助您的文章。

https ：//developers.facebook.com/docs/graph-api/making-multiple-requests

所以，在你的情况下，你需要发送一个在您的请求中称为批处理的字段，每个文件必须附加一个唯一的名称，因此不会被另一个名称重写。

批处理字段的内容将是一个json，您将在其中指定请求的端点，如此（minified btw）：

  [
 {
method：POST，
relative_url：me / photos ，
body：message = labrys，
attached_files：file1
}，
 {
method：POST，
relative_url：我/照片，
body：message = circle，
attached_files：file2
} 
] 
  

我用邮递员尝试过，该请求的设置应该看起来像这样：

对于不发布代码，我不精通客观C，但希望您能够了解到这一点。

I have 2 ways for share images to Facebook.

The SDK Way (work perfect):

FBSDKSharePhotoContent *content = [[FBSDKSharePhotoContent alloc] init];

    NSMutableArray *uploadImages = [[NSMutableArray alloc] init];
    for (UIImage *image in images) {
        FBSDKSharePhoto *sharePhoto = [[FBSDKSharePhoto alloc] init];
        sharePhoto.caption = title;
        sharePhoto.image = image;

        [uploadImages addObject:sharePhoto];
    }
    content.photos = [NSArray arrayWithArray:uploadImages];

    [FBSDKShareAPI shareWithContent:content delegate:self];

and SLRequest way (only send 1 image):

+ (void)uploadPhotoToFacebook:(NSMutableArray *)imagesData imageTitle:(NSString *)title account:(ACAccount*)account completionBlock:(shareSocialResponse)completion
{
    SLRequest *facebookRequest = [SLRequest requestForServiceType:SLServiceTypeFacebook
                                                    requestMethod:SLRequestMethodPOST
                                                              URL:[NSURL URLWithString:@"https://graph.facebook.com/me/photos"]
                                                       parameters:@{@"message": title}];

    for (NSData *imageData in imagesData) {
        [facebookRequest addMultipartData:imageData
                                 withName:@"source"
                                     type:@"multipart/form-data"
                                 filename:@"photo!"];
    }
    NSLog(@"facebookRequest %@",facebookRequest);
    facebookRequest.account = account;
    [facebookRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error)
    {
        if (error) {
            NSLog(@"%@",error.description);

        } else {
            NSDictionary *returnedData = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:&error];
            NSLog(@"returnedData: %@", [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]);

            if ([urlResponse statusCode] != 200) {

                dispatch_async(dispatch_get_main_queue(), ^{
                    NSString *errorMessage = @"We could not process your request now";
                    if ([returnedData valueForKeyPath:@"error.message"] != nil) {
                        errorMessage = [returnedData valueForKeyPath:@"error.message"];
                    }
                    completion(NO, errorMessage);
                });
            } else {
                completion(YES, @"Your clip was posted!");
            }
        }
    }];
}

I believed that if each data sent in a multipart might work, but no.

Anyone have any idea how to do it? Thanks.

解决方案

There is some article in the facebook docs that might help you.

https://developers.facebook.com/docs/graph-api/making-multiple-requests

So, in your case you will need to send a field called batch in your request and each file must be attached with a unique name so it won't be rewrite by another.

The content of batch field will be a json in which you will specify the endpoint of your request, something like this(minified btw):

[
  {
    "method": "POST",
    "relative_url": "me/photos",
    "body": "message=labrys",
    "attached_files": "file1"
  },
  {
    "method": "POST",
    "relative_url": "me/photos",
    "body": "message=circle",
    "attached_files": "file2"
  }
]

I tried it with postman, the settings for that request should look like this:

Sorry for not posting code, I'm not versed in objective C but I hope you get the idea of this.

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