How to post to a users wall using Facebook SDK

Tiddly picture Tiddly · Apr 3, 2013 · Viewed 11k times · Source

I want to post some text to a users wall using the facebook sdk in an iOS app.

Is posting an open graph story now the only way to do that?

I've found with open graph stories they are really strange, you can only post things in the format "user x a y" where you preset x and y directly on facebook, like user ata a pizza or user played a game. Setting up each one is pretty laborious too because you have to create a .php object on an external server for each one.

Am I missing something or is there a simpler way to go about this?

Answer

Tiddly picture Tiddly · Apr 3, 2013

Figured it out by browsing the facebook tutorials a bit more.

-(void) postWithText: (NSString*) message
           ImageName: (NSString*) image
                 URL: (NSString*) url
             Caption: (NSString*) caption
                Name: (NSString*) name
      andDescription: (NSString*) description
{

    NSMutableDictionary* params = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
                                   url, @"link",
                                   name, @"name",
                                   caption, @"caption",
                                   description, @"description",
                                   message, @"message",
                                   UIImagePNGRepresentation([UIImage imageNamed: image]), @"picture",
                                   nil];

    if ([FBSession.activeSession.permissions indexOfObject:@"publish_actions"] == NSNotFound)
    {
        // No permissions found in session, ask for it
        [FBSession.activeSession requestNewPublishPermissions: [NSArray arrayWithObject:@"publish_actions"]
                                              defaultAudience: FBSessionDefaultAudienceFriends
                                            completionHandler: ^(FBSession *session, NSError *error)
        {
             if (!error)
             {
                 // If permissions granted and not already posting then publish the story
                 if (!m_postingInProgress)
                 {
                     [self postToWall: params];
                 }
             }
         }];
    }
    else
    {
        // If permissions present and not already posting then publish the story
        if (!m_postingInProgress)
        {
            [self postToWall: params];
        }
    }
}

-(void) postToWall: (NSMutableDictionary*) params
{
    m_postingInProgress = YES; //for not allowing multiple hits

    [FBRequestConnection startWithGraphPath:@"me/feed"
                                 parameters:params
                                 HTTPMethod:@"POST"
                          completionHandler:^(FBRequestConnection *connection,
                                              id result,
                                              NSError *error)
     {
         if (error)
         {
             //showing an alert for failure
             UIAlertView *alertView = [[UIAlertView alloc]
                                       initWithTitle:@"Post Failed"
                                       message:error.localizedDescription
                                       delegate:nil
                                       cancelButtonTitle:@"OK"
                                       otherButtonTitles:nil];
             [alertView show];
         }
         m_postingInProgress = NO;
     }];
}