Batch

If you have several requests you wish to batch together you can use the GraphRequestBatchBuilder to create a batch request.

To create a batch, firstly create your GraphRequest instances as normal:

var request1:GraphRequest = new GraphRequestBuilder()
        .setPath('/me')
        .setMethod('GET')
        .addFields(["first_name","gender","picture.width(160).height(160)" ])
        .build();

var request2:GraphRequest = new GraphRequestBuilder()
        .setPath('/me/friends')
        .setMethod('GET')
        .addParameter("limit", 200 )
        .addFields(["id","first_name","installed","picture.width(160).height(160)" ])
        .build();

Then construct the GraphRequestBatch using a GraphRequestBatchBuilder:

var batch:GraphRequestBatch = new GraphRequestBatchBuilder()
    .addRequest( request1 )
    .addRequest( request2 )
    .build();

Then call makeBatchRequest() with your GraphRequestBatch instance:

Facebook.instance.graphAPI.makeBatchRequest( batch );

Events

You can add event listeners to the request objects to process the return data from each individual request, as you would for a single request:

request1.addEventListener( GraphRequestEvent.COMPLETE, request1_completeHandler );
request1.addEventListener( GraphRequestEvent.ERROR, request1_errorHandler );
request2.addEventListener( GraphRequestEvent.COMPLETE, request2_completeHandler );
request2.addEventListener( GraphRequestEvent.ERROR, request2_errorHandler );

function request1_completeHandler( event:GraphRequestEvent ):void 
{
    // event.data will contain the Facebook response
}

function request1_errorHandler( event:GraphRequestEvent ):void 
{
    // event.errorCode and event.errorMessage will contain details on the error
}

function request2_completeHandler( event:GraphRequestEvent ):void 
{
    // event.data will contain the Facebook response
}

function request2_errorHandler( event:GraphRequestEvent ):void 
{
    // event.errorCode and event.errorMessage will contain details on the error
}

Additionally you can listen for a GraphRequestEvent.BATCH_COMPLETE event to be notified when all the requests have been completed.

batch.addEventListener( GraphRequestEvent.BATCH_COMPLETE, batch_completeHandler );
                
function batch_completeHandler( event:GraphRequestEvent ):void
{
    trace( "batch complete" );
}

You should make sure to add these listeners before the call to makeBatchRequest().

Callbacks

As an alternative to events, you can add callbacks to the requests as you do with a normal GraphRequest:

var request1:GraphRequest = new GraphRequestBuilder()
    .setPath( "/me" )
    .setCompleteCallback(
            function( data:Object ):void 
            {
                log( "request complete: " + JSON.stringify(data) );
            }
    )
    .setErrorCallback(
            function( code:int, message:String ):void 
            {
                log( "request error: " + code + "::"+ message );
            }
    )
    .build();

Additionally you can add a completion callback to the GraphRequestBatch object:

var batch:GraphRequestBatch = new GraphRequestBatchBuilder()
    .addRequest( request1 )
    .addRequest( request2 )
    .addRequest( request3 )
    .setCompleteCallback(
            function():void
            {
                log( "batch complete" );
            }
    )
    .build();