Socket.IO Packet
Packets are encoded in the Socket.IO protocol. Read a breakdown of the sample session or read more about the session lifecycle.
Packet Contents
| Description | Data type | Optional |
|---|---|---|
| A packet type | integer | |
| A namespace | string | |
| A payload | Object or Array | x |
| An acknowledgement ID | integer | x |
Packet Types
| Type | ID | Usage |
|---|---|---|
| CONNECT | 0 | Used during the connection to a namespace. |
| DISCONNECT | 1 | Used when disconnecting from a namespace. |
| EVENT | 2 | Used to send data to the other side. |
| ACK | 3 | Used to acknowledge an event. |
| CONNECT_ERROR | 4 | Used during the connection to a namespace. |
| BINARY_EVENT | 5 | Used to send binary data to the other side. |
| BINARY_ACK | 6 | Used to acknowledge an event (the response includes binary data). |