# UDPSocket.onMessage(function callback)
Listens on the event of receiving messages.
# Parameters
# function callback
The callback function for the event of receiving messages.
# Parameters
# Object res
| Property | Type | Description |
|---|---|---|
| message | ArrayBuffer | Received messages |
| remoteInfo | Object | Structured information of message sources |
remoteInfo is composed as follows
| Property | Type | Description |
|---|---|---|
| address | string | The address of the socket sending the message |
| family | string | The protocol family used, IPv4 or IPv6 |
| port | number | Port number |
| size | number | The message size, in bytes |