ListMessages Method

Gets messages from the queue.

Syntax

amazonsqs.listMessages(queueId, [callback])

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for this method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This method retrieves messages from the queue specified by QueueId, and fires a Message event for each message it receives. The messages may also be accessed using the property Messages.

If VisibilityTimeout greater than -1 it is applied to the messages, otherwise the default timeout of the queue used. Only one message is retrieved by default; this behavior may be modified by changing MaxMessages.

Note: Unlike messages received from standard queues, messages received from FIFO queues can only be deleted within their VisibilityTimeout. Attempting to call DeleteMessage for a message received from a FIFO queue after its VisibilityTimeout has expired will cause the server to return an error.