CoreProtect/docs/api/networking.md

Networking API

The CoreProtect Networking API allows clients to receive data using packets.

Networking Details
Networking Version:	1
Plugin Version:	v21.3+

---

Packets

The server will not respond unless the player has the correct permission, which is coreprotect.networking.

---

Server to Client

Data Packet

Sends data from the database.

• Channel: coreprotect:data

Type: Int	1	2	3	4
	Time: long	Time: long	Time: long	Time: long
	Phrase selector: UTF	Phrase selector: UTF	Result User: UTF	Result User: UTF
	Result User: UTF	Result User: UTF	Message: UTF	Target: UTF
	Target: UTF	Amount: Int	Sign: Boolean
	Amount: Int	X: Int	X: Int
	X: Int	Y: Int	Y: Int
	Y: Int	Z: Int	Z: Int
	Z: Int	World name: UTF	World name: UTF
	World name: UTF
	Rolledback: Boolean
	isContainer: Boolean
	Added: Boolean

Example (Fabric):

ByteArrayInputStream in = new ByteArrayInputStream(buf.getWrittenBytes());
DataInputStream dis = new DataInputStream(in);
int type = dis.readInt();
long time = dis.readLong();
String selector = dis.readUTF();
String  resultUser = dis.readUTF();
String target = dis.readUTF();
int amount = dis.readInt();
int x = dis.readInt();
int y = dis.readInt();
int z = dis.readInt();
String worldName = dis.readUTF();
boolean rolledback = dis.readBoolean();
boolean isContainer = dis.readBoolean();
boolean added = dis.readBoolean();

Handshake Packet

Sends handshake if player is registered.

• Channel: coreprotect:handshake
• Registered: Boolean

---

Client to Server

Handshake Packet

Sends handshake to register

• Channel: coreprotect:handshake
• Mod Version: UTF
• Mod Id: UTF
• CoreProtect Protocol: Int

Example (Fabric):

PacketByteBuf packetByteBuf = new PacketByteBuf(Unpooled.buffer());
ByteArrayOutputStream msgBytes = new ByteArrayOutputStream();
DataOutputStream msgOut = new DataOutputStream(msgBytes);
msgOut.writeUTF(modVersion);
msgOut.writeUTF(modId);
msgOut.writeInt(coreprotectProtocol);
packetByteBuf.writeBytes(msgBytes.toByteArray());

---

Debugging

/co network-debug

Allows you to debug the networking API if you are registered and have correct permissions.
To utilize the command, network-debug: true must be set in the CoreProtect config.yml.

Example
/co network-debug <type>

---