Using the Facebook module you can let your application users authorize themselves with their Facebook ID. An accessToken is stored on the authenticated user object.

Configuration

Facebook Scope

The scopes that you want the user to authorize. Default value here is “email, user_posts” which you should leave like it is until more functionality is added to this module. Read more about possible permissions here.

Facebook App Secret

With the Facebook app secret it’s possible to request data which the user of the Facebook app has approved. If you want to access this data you have to insert the app secrets here.

Facebook App ID

The ID of the Facebook app where you want your users be authorized against. The default value is the ApiOmat Facebook app ID; if you have your own Facebook app, you may enter this one here.

Usage

After setting the configuration parameters, you may call the following URL in your app to start authentication for a user:

https://apiomat.org/yambas/rest/modules/Facebook/spec/YOURAPPNAME/auth?\
memberId=USERID&usedSystem=SYSTEM

If you develop for android or iOS you have to use a WebView to call the URL.

You have to replace YOURAPPNAME with the name of your app, the USERID with the ID of your current User and SYSTEM with the system information. To fetch the UserID you can use this:

Android

int start = user.getHref().lastIndexOf("/");
String id = user.getHref().substring(start + 1);

You can easily access the system information by calling the attribute “system” from the class “User”. So if you are programming with java it could look like this:

Android

webview.loadUrl("http://apiomat.org/yambas/rest/modules/Facebook" +
"/spec/TestApp/auth?memberId=" + id + "&usedSystem=" +User.system);

The Facebook site is presented to the user asking him if the requesting app (with the ID set in the configuration) may get access to the scopes (set in the configuration) after he logged in. If the user clicks OK the authentication starts, otherwise it is cancelled.

If authentication was successful, the user object will have an additional field accessToken on server side. To fetch this one you have to do a simple reload of the user, so your code may look like this:

Android

callAuthURL();
// do other things
// later on get the actualized user object
user.loadMeAsync(new AOMEmptyCallback() {
	@Override
	public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
		if (exception != null) {
			Log.d("MyActivity", "accessToken: " + user.getAccessToken());
		}
	}
});

Objective-C

callAuthURL();
// do other things
// later on get the actualized user object
[user loadMeAsyncWithFinishingBlock:^(NSError *error) {
    NsLog(@"accessToken: %@ " , [user getAccessToken]);
}];

JavaScript

var user = new Apiomat.User();
 
callAuthUrl();
 
user.loadMe({
    onOk : function() {
        console.log("accessToken: " + user.getAccessToken());
    },
    onError : function(error) {
    }
});

Backbone.js

var user = apiomat.User();
 
callAuthUrl();

Using these values you can access Facebook API without doing a rather complicated OAuth handshake by yourself.

But you can also set the accessToken from your client by calling the following method on your user object:

Android

user.setAccessToken("<the_token>");

Objective-C

[user setAccessToken:@"<the_token>"];

JavaScript

user.setAccessToken("<the_token>");

Backbone.js

user.set({"accessToken", "<the_token>"})

Read here (android) or here (iOS) how you get the accessToken from the native Facebook client libraries.
If you set the accessToken by your own you don’t must set the “Facebook App Secret” in your module config.

If you added the Facebook module to your app setup, you will be able to work with Facebook models like with ‘normal’ models. The following models will handling the communication with Facebook:

FBUser — represent the user in facebook
FBPost — represent a post in facebook
FBComment — A comment in facebook graph API
FBLike — represents a like in facebook system

Working with posts

You can get your own posts by loading the list of posts from a FBUser object. In the following example we’re getting our own posts.

Android

final FBUser me = new FBUser( );
// You have to save the model first, because you need a valid href from the server
me.saveAsync(new AOMEmptyCallback() {
	@Override
	public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
		if (exception != null) {
			// Get the last 25 own posts
			me.loadPostsAsync("", new AOMEmptyCallback() {
				@Override
				public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
					List<FBPost> posts = me.getPosts();
					//Print out the posts
					for ( FBPost fbPost : posts )
					{
					 Log.d("MyActivity", "Message: " + fbPost.getMessage( ) );
					}
				}
			});
		}
	}
});

Objective-C

AOMFBUser *me = [[AOMFBUser alloc] init];
// You have to save the model first,
// cause you need a valid href from the server
[me saveAsyncWithBlock:^(NSError *error) {
    // Get the last 25 own posts
    [me loadPostsAsync:@"" andWithBlock:^(NSError *error) {
        if(error == FALSE)
        {
            //Print out the posts
            for (AOMFBPost *fbPost in [me posts]) {
                NSLog(@"Message: %@", [fbPost message]);
            }
        }
    }];
}];

JavaScript

var me = new Apiomat.FBUser( );
var loadPostsCB = {
		onOk : function() {
    	var posts = me.getPosts();
		
		//Print out the posts
		for (var i=0;i<posts.length;i++) {
			console.log("Message: " + posts[i].getMessage( ) );
		}
	},
		onError : function(error) {
    		console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	}
};
 
//You have to save the model first, because you need a valid href from the server
var saveCB = {
		onOk : function() {
    	// Get the last 25 own posts
    	me.loadPosts("", loadPostsCB);
	},
		onError : function(error) {
    	console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	}
};
 
me.save(saveCB);

Backbone.js

var loadPostsCB = {
    success: function(model, response, options) {
        var posts = model.get("posts");
 
        //print out the posts
        for(var i = 0; i < posts.length; i++) {
            console.log("Message: " + posts[i].get("Message"));
        }
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
}
 
var saveUserCB = {
    success: function(model, response, options) {
        model.loadPosts(loadPostsCB);
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }}
 
var me = apiomat.FBUser();
 
//you have to save the model first, because you need a valid href from server
me.save(saveUserCB);

Swift

let me = FBUser()
// You have to save the model first,
// cause you need a valid href from the server
me.save { (error) in
    // Get the last 25 own posts
    me.loadPosts { (models, error) in
        if error == false {
            //Print out the posts
            for let fbPost in me.posts {
               
				print("Message: \(fbPost.message)")
            }
        }
    }
}

C#

FBUser me = new FBUser ();
//you have to save the model first in order to get a valid href from server
await me.SaveAsync ();
 
//get the latest 25 own posts
await me.LoadPostsAsync();
IList<FBPost> posts = me.Posts;
 
//print the posts
foreach (FBPost post in posts)
{
	Console.WriteLine ("message content: " + post.Message);
}

It’s also very easy and straightforward to send a post to your own wall.

Android

FBPost newPost = new FBPost();
newPost.setMessage("A test post from api o mat");
try {
	// Send to your own wall
	newPost.save( );
} catch (Exception e) {
	System.err.println("Error occured: " + e.getMessage());
}

Objective-C

AOMFBPost *newPost = [[AOMFBPost alloc] init];
[newPost setMessage:@"A test post from ApiOmat"];
//Send to your own wall
[newPost saveAsyncWithBlock:^(NSError *error) {
    if(error)
    {
        NSLog(@"Error occurred: %@", [error userInfo]);
    }
}];

JavaScript

var newPost= new Apiomat.FBPost();
newPost.setMessage("A test post from ApiOmat");
 
// Send to your own wall newPost.save( );
var saveCB = {
    onOk : function() {
        console.log("saved");
    },
    onError : function(error) {
        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
    }
};
 
newPost.save(saveCB);

Backbone.js

var savePostCB = {
    success: function(model, response, options) {
        console.log("post successfully saved");
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
}
 
var newPost = apiomat.FBPost();
newPost.set({"Message", "a test message from apiomat"});
newPost.save(savePostCB);

Swift

let newPost = FBPost()
newPost.message = "A test post from ApiOmat"
//Send to your own wall
newPost.save { (error) in
    if(error) {
		print("Error occurred: \(error.userInfo)")
    }
}];

C#

FBPost post = new FBPost();
post.Message = "A test post from ApiOmat";
 
//send to our own wall
await post.SaveAsync ();

Note: Cause Facebook changes their Graph API it isn’t longer possible to pin a message to the wall of a friend!

Delete a current post:

Android

//...get posts (see above)
//Delete object of type FBPost
fbPost.deleteAsync(new AOMEmptyCallback() {
	@Override
	public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
		if (exception != null) {
			// ...
		}
	}
});

Objective-C

//...get posts (see aboove)
//Delete object of type FBPost
[fbPost deleteAsyncWithBlock:^(NSError *error) {
 
}];

JavaScript

//... get posts have a look to the example above
//delete object of type FBPost
var deleteCB = {
    onOk : function() {
        console.log("deleted");
       
    },
    onError : function(error) {
        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
    }
};
 
newPost.deleteModel(deleteCB);

Backbone.js

var deletePostCB = {
    success: function(model, response, options) {
        console.log("successfully deleted post");
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
}
 
newPost.destory(deletePostCB);

Swift

//...get posts (see aboove)
//Delete object of type FBPost
fbPost.delete { (error) in
 
}

C#

//... get posts have a look to the example above
//delete object of type FBPost
await post.DeleteAsync();

You can fetch the comments of a post with the following code snippet:

Android

private void test() {
	final FBUser me = new FBUser();
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				printCommentsOfPostOfUser(me, 0);
			}
		}
	});
}
 
private void printCommentsOfPostOfUser(final FBUser user, final int postIndex){
	// Now download the list of posts
	user.loadPostsAsync("", new AOMEmptyCallback() {
		List posts = user.getPosts();
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				printCommentsOfPost(posts.get(postIndex));
			}
		}
	});
}
 
private void printCommentsOfPost(final FBPost post) {
	// Get the comments for the first post
	post.loadCommentsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null){
				List<fbcomment> comments = post.getComments();
				for (FBComment comment : comments) {
					String message = String.format("Comment from %s: %s", comment
							.getFrom().get("name"), comment.getMessage()));
					Log.d("MyActivity", message );
				}
			}
		}
	});
}

Objective-C

AOMFBUser *me = [[AOMFBUser alloc] init];
[me saveAsyncWithBlock:^(NSError *error) {
    // Now download list of posts List
    [me loadPostsAsync:@"" andWithBlock:^(NSError *error) {
        if(error == FALSE)
        {
            // Get the comments for the first post
            [[me posts][0] loadCommentsAsync:@"" andWithBlock:^(NSError *error) {
                for (AOMFBComment *comment in [[me posts][0] comments]) {
                    NSLog(@"Comment from %@: %@", [[comment from] objectForKey:@"name"], [comment message]);
                }
            }];
        }
        else
        {
            NSLog(@"Error occurred: %@", [error userInfo]);
        }
    }];
}];

JavaScript

function test() {
	var me= new Apiomat.FBUser();
 
	var saveCB = {
	    onOk : function() {
	        printCommentsOfPostOfUser(me,0);
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
 
	me.save(saveCB);
}
 
function printCommentsOfPostsOfUser(var user, var postIndex) {
	var loadPostsCB = {
	    onOk : function() {
	    	var posts=user.getPosts();
	        printCommentsOfPost(posts.get(postIndex));
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
 
	user.loadPosts(loadPostsCB);
 
}
 
function printCommentsOfPost(var post) {
	var loadCommentsCB = {
	    onOk : function() {
	    	var comments=posts.getComments();
	    	for (index = 0; index < comments.length; ++index) {
   				console.log(comments[index]);
			}
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
 
	post.loadComments(loadCommentsCB);
 
}

Backbone.js

function printCommentsOfPost(var post) {
    var loadCommentsCB = {
        success: function(model, response, options) {
            var comments = posts.get("Comments");
            for (var i = 0; i comments.length; i++) {
                console.log(comments[i]);
            }
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    post.loadComments(loadCommentsCB);
}
 
function printCommentsOfPostOfUser(var user, var postIndex) {
    var loadPostsCB = {
        success: function(model, response, options) {
            var posts = model.get("Posts");
            printCommentsOfPost(posts[postIndex]);
        },
        error: function (model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    user.loadPosts(loadPostsCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            printCommentsOfPostOfUser(model, 0);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
    me.save(saveUserCB);
}

Swift

let me = FBUser()
me.save { (error) in
    // Now download list of posts List
    me.loadPosts { (models, error) in
        if error == false {
            // Get the comments for the first post
            me.posts[0].loadComments { (models, error) in
 
                for let comment in me.posts[0].comments {
                    NsLog(@"Comment from %@: %@", [[comment from] objectForKey:@"name"], [comment message]);
					print("Comment from \(comment.from["name"]): \(comment.message)")
                }
            }];
        } else {
 
 
			print("Error occurred: \(error.userInfo)")
        }
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
//load list of posts
me.LoadPostsAsync ();
if (me.Posts.Count > 0)
{
	FBPost post = me.Posts [0];
  	Console.WriteLine ("content of first post: " + post.Message);
 
  	await post.LoadCommentsAsync()
  	IList<FBComment> comments = post.Comments;
 
  	foreach (FBComment comment in comments)
  	{
    	Console.WriteLine ("Comment from " + comment.From.Values ["name"] + ": " + comment.Message);
  	}
}

When you want to add a comment to a post do the following things:

Android

private void test() {
	final FBUser me = new FBUser( );
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null){
				addCommentToPostOfUser(me, 0, "A comment");
			}
		}
	});
}
 
private void addCommentToPostOfUser(final FBUser user, final int postIndex, final String commentText) {
	user.loadPostsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null){
				FBPost post = user.getPosts().get(postIndex);
				addCommentToPost(post, commentText);
			}
		}
	});
}
 
private void addCommentToPost(final FBPost post, final String commentText){
	final FBComment comment = new FBComment();
	comment.setPostId(post.getForeignId());
	comment.setMessage(commentText);
	comment.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null){
				linkCommentToPost(post, comment);
			}
		}
	});
}
 
private void linkCommentToPost(final FBPost post, final FBComment comment) {
	post.postCommentsAsync(comment, new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null)
			{
				// ...
			}
		}
	});
}

Objective-C

AOMFBUser *me = [[AOMFBUser alloc] init];
[me saveAsyncWithBlock:^(NSError *error) {
    // download list of posts
    [me loadPostsAsync:@"" andWithBlock:^(NSError *error) {
        if(error == FALSE)
        {
             // Create a new comment
            AOMFBComment *comment = [[AOMFBComment alloc] init];
 
            // Set the post id
            AOMFBPost postWithComment = [me posts][0];
            [comment setPostId:[postWithComment getForeignId]];
            // add a text
            [comment setMessage:@"A comment"];
            [comment saveAsyncWithBlock:^(NSError *error) {
                // Also link together
                [postWithComment postCommentsAsync:comment andWithBlock:^(NSError *error) {
                    if(error)
                    {
                        NSLog(@ "Error occurred: %@", [error userInfo]);
                    }
                }];
            }];
        }
    }];
}];

JavaScript

function test() {
	var me= new Apiomat.FBUser();
 
	var saveCB = {
	    onOk : function() {
	    	addCommentToPostOfUser(me, 0, "A comment");
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
 
	me.save(saveCB);
}
 
function addCommentToPostOfUser(var user, var postIndex, var commentText) {
	var loadPostsCB = {
	    onOk : function() {
	    	var post = user.getPosts().get(postIndex);
            addCommentToPost(post, commentText);
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
	user.loadPosts(loadPostsCB);
}
 
function addCommentToPost (var post, var commentText) {
	var comment= new Apiomat.FBComment();
	comment.setPostId(post.getForeignId());
	comment.setMessage(commentText);
 
	var commentSaveCB = {
		    onOk : function() {
		    	linkCommentToPost(post, comment);
		    },
		    onError : function(error) {
		        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
		    }
		};
 
 
 
	comment.save(commentSaveCB);
}
 
function linkCommentToPost(var post, var comment) {
	var postCommentsCB = {
		    onOk : function() {
		    	console.log("saved");
		    },
		    onError : function(error) {
		        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
		    }
		};
 
	post.postComments(postCommentsCB);
}

Backbone.js

function linkCommentToPost(comment, post) {
    var postCommentToPostCB = {
        success: function(model, reponse, options) {
            console.log("successfully posted comment to post");
        },
        error: function(model, resposne, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    post.postComment(comment, postCommentToPostCB);
}
 
function addCommentToPost(var post, var commentMessage) {
    var comment = apiomat.FBComment();
    comment.set({"PostId", post.get("foreignId")});
    comment.set({"Message", commentMessage});
 
    saveCommentCB = {
        success: function(model, response, options) {
            linkCommentToPost(comment, post);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    comment.save(saveCommentCB);
}
 
function addCommentToPostOfUser(var user, var postIndex, var commentMessage) {
    var loadPostCB =  {
        success: function(model, reponse, options) {
            var post = model.get("Posts")[postIndex];
            addCommentToPost(post, commentMessage);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.statusCode);
        }
    }
 
	user.loadPosts(loadPostCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            addCommentToPostOfUser(model, 0, "A comment");
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
 
    me.save(saveUserCB);
}

Swift

let me = FBUser()
me.save { (error) in
    // download list of posts
    me.loadPosts { (models, error) in
        if error == false {
             // Create a new comment
            let comment = FBComment()
 
            // Set the post id
            let postWithComment = me.posts[0]
            comment.postId = postWithComment.foreignId
            // add a text
            comment.message = "A comment"
            comment.save { (error) in
                // Also link together
                postWithComment.postComments(comment) { (href, errror) in
                    if error {
                  
						print("Error occurred: \(error.userInfo)")
                    }
                }];
            }
        }
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
//load list of posts
me.LoadPostsAsync ();
 
//create new comment
FBComment comment = new FBComment();
 
FBPost postWithComment = me.Posts[0];
//set the post id
comment.PostId = postWithComment.Id;
 
//add a message for your comment
comment.Message = "my comment";
 
//now save the comment
await comment.SaveAsync();
 
//also link together
await postWithComment.PostCommentsAsync(comment);

Certainly it’s possible to add a comment to posts of your friends.

If you don’t like your comment anymore you can easily delete it:

Android

//do stuff like above
//If you have the comment downloaded
//than you can delete it
comment.delete();

Objective-C

//do stuff like above
//If you have the comment downloaded
//than you can delete it
[comment deleteAsyncWithBlock:^(NSError *error) {
 
}];

JavaScript

//do stuff like above
//If you have the comment downloaded
//than you can delete it
var deleteCB = {
	    onOk : function() {
	    	console.log("deleted");
	    },
	    onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
comment.deleteModel(deleteCB);

Backbone.js

//do stuff like above
//If you have the comment downloaded
//than you can delete it
 
var destroyCommentCB = {
    success: function(model, reponse, options) {
        console.log("successfully deleted comment");
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
}
 
comment.destroy(destroyCommentCB);

Swift

//do stuff like above
//If you have the comment downloaded
//than you can delete it
comment.delete { (error) in
 
}

C#

//do stuff like above
//If you have the comment downloaded
//than you can delete it
await comment.DeleteAsync();

Accessing likes of a post:

Android

private void test() {
	final FBUser me = new FBUser();
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				printLikesOfPost(me, 0);
			}
		}
	});
}
 
private void printLikesOfPost(final FBUser user, final int postIndex) {
	user.loadPostsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				FBPost post = user.getPosts().get(postIndex);
				printLikesOfPost(user, post);
			}
		}
	});
}
 
private void printLikesOfPost(final FBUser user, final FBPost post) {
	post.loadLikesAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				// Load likes of first post
				List<fblike> likes = post.getLikes();
				Log.d("MyActivity", "Count likes: " + likes.size());
				// Print out the name of the persons which liked the post
				for (FBLike like : likes) {
					Log.d("MyActivity", like.getName());
				}
			}
		}
	});
}

Objective-C

AOMFBUser *me = [[AOMFBUser alloc] init];
[me saveAsyncWithBlock:^(NSError *error) {
    // download list of posts
    [me loadPostsAsync:@"" andWithBlock:^(NSError *error) {
        if(error == FALSE)
        {
            // Load likes of first post
            [[me posts][0] loadLikesAsync:@"" andWithBlock:^(NSError *error) {
                if(error == FALSE)
                {
                    NSLog(@"Count likes: %i", [[[me posts][0] likes] count] );
                    // Print out the name of the persons which liked the post
                    for (AOMFBLike like in [[me posts][0] likes]) {
                        NSLog(@"%@", [like name]);
                    }
                }
                else
                {
                    NSLog(@ "Error occurred: %@", [error userInfo]);
                }
            }];
        }
    }];
}];

JavaScript

function test() {
	var me= new Apiomat.FBUser();
	var saveCB = {
		    onOk : function() {
		    	 printLikesOfPost(me, 0);
		    },
		    onError : function(error) {
		        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
		    }
		};
	me.save(saveCB);
}
 
function printLikesOfPost(var user, var postIndex) {
	var loadPostsCB = {
		    onOk : function() {
		    	var post = user.getPosts().get(postIndex);
                printLikesOfPost(user, post);
		    },
		    onError : function(error) {
		        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
		    }
		};
	user.loadPosts(loadPostsCB);
}
 
function printLikesOfPost(var user, var post) {
	var loadLikesCB = {
			    onOk : function() {
				    	// Load likes of first post
	                var likes = post.getLikes();
	                	console.log("Count likes: " + likes.length);					
	                for (index = 0; index < comments.length; ++index) {
   						console.log(comments[index]);
					}
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
	post.loadLikes(loadLikesCB);
}

Backbone.js

function printLikesOfPost(var post) {
    var loadLikesCB = {
        success: function(model, response, options) {
            var likes = post.get("Likes");
            for (var i = 0; i likes.length; i++) {
                console.log(likes[i]);
            }
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.statusCode);
        }
    }
 
    post.loadLikes(loadLikesCB);
}
 
function printLikesOfPostOfUser(var user, var postIndex) {
    var loadPostsCB = {
        success: function(model, response, options) {
            var posts = model.get("Posts");
            printLikesOfPost(posts[postIndex]);
        },
        error: function (model, reponse, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.statusCode);
        }
    }
 
    user.loadPosts(loadPostsCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            printLikesOfPostOfUser(model, 0);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
 
    me.save(saveUserCB);
}

Swift

let me = FBUser()
me.save { (error) in
    // download list of posts
    me.loadPosts { (models, error) in
        if error == false {
            // Load likes of first post
           	me.posts[0].loadLikes { (models, error) in
                if error == false {
 
 
					print("Count likes: \(me.post[0].likes.count.description)")
                    // Print out the name of the persons which liked the post
                    for (let like in me.posts[0].likes) {
 
						print("\(like.name)")
                    }
                } else {
					print("Error occurred: \(error.userInfo)")
                }
            }
        }
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
me.LoadPostsAsync ();
if (me.Posts.Count > 0)
{
    FBPost post = me.Posts [0];
    Console.WriteLine ("content of first post: " + post.Message);
 
    await post.LoadLikesAsync();
    IList<FBLike> likes = post.Likes;
 
    foreach (FBLike like in likes)
    {
        Console.WriteLine ("Like from: " + like.Name);
    }
}

As of Nov 17, 2016 Facebook changed the behavior of publishing likes, this action is only possible with Page Access Tokens. As the SDKs are using a User Access Token, it is not possible to publish likes using any SDK. For documentation purposes, you can see the former code snippet below:

Android

private void test() {
	final FBUser me = new FBUser();
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				likePost(me, 0);
			}
		}
	});
}
 
private void likePost(final FBUser user, final int postIndex) {
	user.loadPostsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				FBPost post = user.getPosts().get(postIndex);
				likePost(post);
			}
		}
	});
}
 
private void likePost(final FBPost post) {
	// Create a new like
	final FBLike like = new FBLike();
	 // persist the like object first
	like.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				likePost(post, like);
			}
		}
	});
}
 
private void likePost(final FBPost post, final FBLike like) {
	post.postLikesAsync(like, new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null)
			{
				// ...
			}
		}
	});
}

Objective-C

AOMFBLike *likeIt = [[AOMFBLike alloc] init];
AOMFBUser *myUser = [[AOMFBUser alloc] init];
[myUser saveAsyncWithBlock:^(NSError *error) {
    // persist the like object first
    [likeIt saveAsyncWithBlock:^(NSError *error) {
        // download list of posts
        [myUser loadPostsAsync:@"" andWithBlock:^(NSError *error) {
            if(error == FALSE)
            {
                NSMutableArray *posts = [me posts];
                [posts[1] postLikesAsync:likeIt andWithBlock:^(NSError *error) {
 
                }];
            }
            else
            {
                 NSLog(@ "Error occurred: %@", [error userInfo]);
            }
        }];
 
    }];
}];

JavaScript

function test() {
	var me= new Apiomat.FBUser();
	var saveCB = {
			    onOk : function() {
				    likePost(me, 0);
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
	me.save(saveCB);
}
 
function likePostLoad(var user, var postIndex) {
	var loadPostsCB = {
			    onOk : function() {
				   	var post = user.getPosts().get(postIndex);
                	likePostSave(post);
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
 
	user.loadPosts(loadPostsCB);
}
 
function likePostSave(var post) {
	var like= new Apiomat.FBLike();
	var saveCB = {
			    onOk : function() {
				   	var post = user.getPosts().get(postIndex);
                	likePost(post);
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
 
	like.save(saveCB);
}
 
function likePost( var post, var like) {
	var postLikesCB = {
			    onOk : function() {
				   	//console.log();
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
	post.postLikes(postLikesCB);
}

Backbone.js

function linkCommentToPost(like, post) {
    var postLikeToPostCB = {
        success: function(model, response, options) {
            console.log("successfully posted like to post");
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
 
        post.postLike(like, postLikeToPostCB);
    }
}
 
function addLikeToPost(var post) {
    var like = apiomat.FBLike();
    
    saveLikeCB = {
        success: function(model, response, options) {
            linkLikeToPost(like, post);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    comment.save(saveLikeCB);
}
 
function addLikeToPostOfUser(var user, var postIndex) {
    var loadPostCB =  {
        success: function(model, response, options) {
            var post = model.get("Posts")[postIndex];
            addLikeToPost(post);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.statusCode);
        }
    }
 
    user.loadPosts(loadPostCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            addLikeToPostOfUser(model, 0);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.statusCode);
    }
 
    me.save(saveUserCB);
}

Swift

let likeIt = FBLike()
let myUser = FBUser()
myUser.save { (error) in
    // persist the like object first
    likeIt.save { (error) in
        // download list of posts
        myUser.loadPosts { (models, error) in
            if error == false {
                let posts = me.posts
                posts[1].postLikes(likeIt) { (href, error) in
 
                }
            } else {
				print("Error occurred: \(error.userInfo)") 
            }
        }
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
//load list of posts
me.LoadPostsAsync ();
 
//create new like
FBLike like = new FBLike();
 
FBPost postWithComment = me.Posts[0];
 
//now save the like
await like.SaveAsync();
 
//also link together
await postWithComment.PostLikesAsync(like);

Delete own like is easy:

Android

private void test() {
	final FBUser me = new FBUser();
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				deleteLike(me, 0, 0);
			}
		}
	});
}
 
private void deleteLike(final FBUser user, final int postIndex, final int likeIndex) {
	user.loadPostsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				FBPost post = user.getPosts().get(postIndex);
				deleteLike(post, likeIndex);
			}
		}
	});
}
 
private void deleteLike(final FBPost post, final int likeIndex) {
	post.loadLikesAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				FBLike like = post.getLikes().get(likeIndex);
				deleteLike(post, like);
			}
		}
	});
}
 
private void deleteLike( final FBPost post, final FBLike like) {
	post.removeLikesAsync(like, new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				// ...
			}
		}
	});
}

Objective-C

AOMFBUser *myUser = [[AOMFBUser alloc] init];
[myUser saveAsyncWithBlock:^(NSError *error) {
     // download list of posts
    [myUser loadPostsAsync:@"" andWithBlock:^(NSError *error) {
        if(error == FALSE)
        {
            NSMutableArray *posts = [me posts];
            AOMFBPost post = posts[1];
            deleteLike(post);
        }
    }];
}];
 
void deleteLike(AOMFBPost *post)
{
    // get likes of post
    [post loadLikesAsync:@"" andWithBlock:^(NSError *error) {
        // You can only delete your own like
        [post removeLikesAsync:[post likes][0] andWithBlock:^(NSError *error) {
            if(error)
            {
                NSLog(@ "Error occurred: %@", [error userInfo]);
            }
        }];
    }];
}

JavaScript

function test() {
	var me= new Apiomat.FBUser(); 
	var saveCB = {
			    onOk : function() {
				   deleteLike(me, 0, 0);
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
	me.save(saveCB);
 
}
 
function deleteLike(var user, var postIndex, var likeIndex) {
	var loadPostsCB = {
			    onOk : function() {
				   var post = user.getPosts().get(postIndex);
                	deleteLikePosts(post, likeIndex);
			    },
			    onError : function(error) {
			        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
			    }
			};
 
	user.loadPosts(loadPostsCB);
 
	}
 
function deleteLikePosts(var post, var likeIndex) {
	var loadLikesCB = {
				    onOk : function() {
					   	var like = post.getLikes().get(likeIndex);
                		deleteLikePost(post, like);
				    },
				    onError : function(error) {
				        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
				    }
				};
	post.loadLikes(loadLikesCB);
}
 
function deleteLikePost(var post,var like) {
	var removeLikesCB = {
				    onOk : function() {
					   	//console.log();
				    },
				    onError : function(error) {
				        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
				    }
				};
	post.removeLikes(removeLikesCB);
 
}

Backbone.js

function deleteLike(post, like) {
    var removeLikeFromPostCB = {
        success: function(model, response, options) {
            console.log("successfully removed like from post");
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    post.removeLike(like, removeLikeFromPostCB);
}
 
function deleteLikeFromPost(var post, var likeIndex) {
    loadLikesCB = {
        success: function(model, response, options) {
            deleteLike(post, post.get("Likes")[likeIndex]);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
    
    post.loadLikes(loadLikesCB);
}
 
function deleteLike(var user, var postIndex, var likeIndex) {
    var loadPostCB =  {
        success: function(model, reponse, options) {
            var post = user.get("Posts")[postIndex];
            deleteLikeFromPost(post, likeIndex);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
 
    user.loadPosts(loadPostCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            deleteLike(model, 0, 0);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
 
    me.save(saveUserCB);
}

Swift

let myUser = FBUser()
[myUser.save { (error) in
     // download list of posts
    myUser.loadPosts { (models, error) in
        if(error == false)
        {
            let posts = me.posts
           	let post = posts[1]
            deleteLike(post);
        }
    }
}
 
func deleteLike(post: FBPost) {
    // get likes of post
    post.loadLikes { (models, error) in
        // You can only delete your own like
		 if let like = post.likes[0] {
			post.removeLikes(like) { (error) in
            	if(error) {
					print("Error occurred: \(error.userInfo)")
            	}
        	}
		}
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
//load list of posts
me.LoadPostsAsync ();
 
FBPost post = me.Posts[0];
  
if(post != null)
{	
	await post.LoadLikesAsync ();
    FBLike likeToDelete = post.Likes [0];
 
    if (likeToDelete != null)
    {
    	await post.RemoveLikesAsync (likeToDelete);
	}
}

Get information about you

Here is an example how you get information about you. Don’t forget to set the facebook scope (about_me) in the app setup on dashboard (see also information about App Setup)

Android

final FBUser me = new FBUser();
me.saveAsync(new AOMEmptyCallback() {
	@Override
	public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
		if (exception != null) {
			//Now you have access to your information like the name
			Log.d("MyActivity", "Name: " + me.getName( ));
		}
	}
});

Objective-C

AOMFBUser *myUser = [[AOMFBUser alloc] init];
// You have to save the model first
[myUser saveAsyncWithBlock:^(NSError *error) {
    if(error == FALSE)
    {
        //Now you have access to your information
        //e.g. the name
        NSLog(@"Name: %@", [myUser name]);
    }
}];

JavaScript

var me= new Apiomat.FBUser();
var saveCB = {
	onOk : function() {
		console.log(me.getName());
	},
	onError : function(error) {
		console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	}
};
me.save(saveCB);

Backbone.js

var me = apiomat.FBUser();
 
var saveUserCB = {
    success: function(model, response, options) {
        console.log(model.get("Name"));
    },
    error: function(model, response, options) {
        console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
	}
}
 
me.save(saveUserCB);

Swift

let myUser = FBUser()
// You have to save the model first
myUser.save { (error) in
    if error == false {
        //Now you have access to your information
        //e.g. the name
		print("Name: \(myUser.name)
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
//Now you have access to your information like the name
Console.WriteLine("Name: " + me.Name);

Fetch information about friends and posts of friends

You can get information about your friends by loading the friend list on your FBUser. Don’t forget to set the permission ‘friends_about_me’ in the dashboard (see also information about App Setup).

If the friend has authorized the same app on Facebook, you can load the posts from him. These posts can then be loaded using "loadPosts".

Android

private void test() {
	final FBUser me = new FBUser();
	me.saveAsync(new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				printFriendInfo(me);
			}
		}
	});
}
 
private void printFriendInfo(final FBUser user) {
	user.loadFriendsAsync("", new AOMEmptyCallback() {
		@Override
		public void isDone(boolean wasLoadedFromStorage, ApiomatRequestException exception) {
			if (exception != null) {
				List<fbuser> friends = me.getFriends();
				for (FBUser friend : friends) {
					  Log.d("MyActivity", "Facebook ID: " + friend.getForeignId( ) );
					  Log.d("MyActivity", "Name of friend: " + friend.getName( ) );
				}
			}
		}
	});
}

Objective-C

AOMFBUser *me = [[AOMFBUser alloc] init];
// You have to save the model first
[me saveAsyncWithBlock:^(NSError *error) {
   // Now download the list of friends
    [me loadFriendsAsync:@"" andWithBlock:^(NSError *error) {
       if(error == FALSE)
       {
           NSMutableArray *friends = [me friends];
           for (AOMFBUser *friend in friends) {
               NSLog(@"Facebook ID: %@", [friend getForeignId]);
               NSLog(@"Name of friend: %@", [friend name]);
           }
       }
       else
       {
           NSLog(@ "Error occurred: %@", [error userInfo]);
       }
    }];
}];

JavaScript

function test() {
	var me= new Apiomat.FBUser();
	var saveCB = {
		onOk : function() {
		   	printFriendInfo(me);
		},
		onError : function(error) {
			console.log("Some error occured: (" + error.statusCode + ")" + error.message);
		}
	};
	me.save(saveCB);
}
 
function printFriendInfo(var user) {
	var loadFriendsCB = {
	    onOk : function() {
		   	var friends = user.getFriends();
		   	for (index = 0; index < friends.length; ++index) {
   				console.log(friends[index]);
   			}
		},
        onError : function(error) {
	        console.log("Some error occured: (" + error.statusCode + ")" + error.message);
	    }
	};
	me.loadFriends(loadFriendsCB);
}

Backbone.js

function printFriendInfo(var user) {
    var loadFriendsCB = {
        success: function(model, response, options) {
            var friends = user.get("Friends");
            for(var i = 0; i < friends.length; i++) {
                console.log(friends[i]);
            }
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
    
    user.loadFriends(loadFriendsCB);
}
 
function test() {
    var me = apiomat.FBUser();
 
    var saveUserCB = {
        success: function(model, response, options) {
            printFriendInfo(model);
        },
        error: function(model, response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
    }
 
    me.save(saveUserCB);
}

Swift

let me = FBUser
// You have to save the model first
me.save { (error) in
   // Now download the list of friends
    me.loadFriends { (models, error) in
       if error == false {
           
			if let friends = me.friends {
				
				for let friend in friends {
				
					print("Facebook ID: \(friend.foreignId)")
					print("Name of friend
				}
			}
       } else {
           
			print("Error occurred: \(error.userInfo))
       }
    }
}

C#

FBUser me = new FBUser ();
await me.SaveAsync ();
 
await me.LoadFriendsAsync ();
IList<FBUser> friends = me.Friends;
 
foreach (FBUser friend in friends)
{
	Console.WriteLine ("Facebook ID: " + friend.ForeignId);
	Console.WriteLine ("Facebook Name: " + friend.Name);
}

User Signup and Login with Facebook

When you read about how our SDKs work, you know that you need a user to configure the Datastore, so that saving and loading objects work (because the related requests need to be authenticated with the user credentials). The same works for our REST API.

But when you want your users to be able to login with their existing Facebook credentials, you don’t want to ask for separate credentials to create an object of the ApiOmat user class or a subclass. That’s what our Facebook login mechanism is for. You supply the Facebook token of your user (obtained from the official Facebook SDK) and receive a tuple that contains an ApiOmat User object and a token map with the tokens you need to authenticate:

Android

private void fbLogin(final String fbToken) {
	FBUser.loginFacebookUserAsync(fbToken, new AOMCallback() {
		@Override
		public void isDone(UserTokenContainerTuple userTokenContainerTuple, boolean wasLoadedFromStorage, ApiomatRequestException exception) {
		    if (exception != null)
			{
				User user = userTokenContainerTuple.getUser();
				String sessionToken = userTokenContainerTuple.getTokenContainer().getSessionToken();
				user.setSessionToken(sessionToken);
				Datastore.configureWithSessionToken(user);
			}
		}
	});
}

Objective-C

 - (void) FbLogin: (NSString*) fbToken
{
	AOMFBUser* me = [[AOMFBUser alloc] init];
 
	[AOMDatastore configureWithUser:member];
	AOMUserTokenContainerTuple* tuple = [me loginFacebookUser:FB_ACCESSTOKEN];
	AOMUser* member = tuple.user;
	user.sessionToken = tuple.tokenContainer.sessionToken;
	[AOMDatastore configureWithSessionTokenFromUser:user];
}

JavaScript

function fbLogin(fbToken) {
	Apiomat.FBUser.loginFacebookUser(fbToken, {
    	onOk: function(userTokenMap) {
        	var user = userTokenMap.user;
        	var tokenMap = userTokenMap.tokenMap;
 
        	user.setSessionToken(tokenMap.sessionToken);
        	Apiomat.Datastore.configureWithUserSessionToken(user);
    	},
    	onError: function(error) {
        	console.log("Some error occured. " + error.statusCode + " --> " + error.message);
    	}
	)
}

Backbone.js

function fBLogin(var fbToken) {
    var fBUser = apiomat.FBUser();
    var fbLoginCB = {
        success: function(success, response) {
            if(success) {
                var tokenMap = response.tokenMap;
                apiomat.authenticationService().configureWithUserSessionToken(tokenMap.access_token);
            }
        },
        error: function(model response, options) {
            console.log("some error occured: (" + options.error.statusCode + ") " + options.error.message);
        }
    }
    fbUser.loginFacebookUser(fbToken, fbLoginCB);
}

Swift

func FBLogin(fbToken: String) {
	let comp: CompletionHandlerWithUserTokenContainer = { data, error in
		if(error == nil) {
			DataStore.configureWithSessionToken(data.tokenContainer.sessionToken!)
			//now you can go on
		}
		else {
			//handle error
		}
	}
 
	let fbUser = FBUser();
	fbuser.loginFacebookUser(fbToken, completion: comp)
}

C#

private void FbLoginAsync(string fbToken)
{
	Tuple<User, IDictionary> userTokenMapTuple = await FBUser.GetOrCreateUserAsync(fbToken).ConfigureAwait(false);
	User user = userTokenMapTuple.Item1;
	IDictionary tokenMap = userTokenMapTuple.Item2;
	user.SessionToken = tokenMap["SessionToken"];
	Datastore.ConfigureWithSessionToken(user);
}

The example code already configures the Datastore with the received session token. So from then on normal requests to the backend can be made, like myObj.saveAsync(); in Java.

This mechanism also works if your user signed up the conventional way before and now wants to login with Facebook. When the user object that already exists in the backend already has a Facebook ID attached and it’s the same as the one of the Facebook User with whose credentials your user just logs in, you also get the same return type with a user and a tokenMap. The existing user object also gets assigned some additional data if the attributes don’t have any values yet (first name, last name, date of birth).

Facebook Module

Configuration

Facebook Scope

Facebook App Secret

Facebook App ID

Usage

Working with posts

Get information about you

Fetch information about friends and posts of friends

User Signup and Login with Facebook

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