func CopyUser(user *User) map[string]interface{}
CopyUser Copies a user struct for transferring user client data to another node
userData *User - User to be copied as a map[string]interface{}.
func DiscardUser(reliableClientAddr string, sid string)
DiscardUser Deletes a user data. Either reliableClientAddr or SID to be used.
[NOTE] Uses mutex lock internally.
NOTE: Newer version of the clients use SID instead of the client address.
reliableClientAddr string - Client address of the user to be discarded. sid string - User SID of the user to be discarded.
func GetCCU() int
GetCCU returns the number of concurrent users of the node
[NOTE] Uses mutex lock internally..
func New(data map[string]interface{}, initTTL int64) (map[string]interface{}, error)
New [INTERNAL USE ONLY] handle mesh network command sent from HTTP
[NOTE] Uses mutex lock internally.
if initTTL is greater than 0, it will be used as the initial TTL (in seconds) if initTTL is 0 or less, config TTL will be used as the initial TTL (in seconds)
func OnDiscard(callback func(string, *User))
OnDiscard Registers a callback on user data deletion
[IMPORTANT] This function is not goroutine safe and it must not be used in runtime. assign callbacks on the start of your process only.
callback func(SID string, userData *User) - Callback to be invoked when the target user is deleted.
func OnNew(callback func(*User))
OnNew Registers a callback on user.New()
[IMPORTANT] This function is not goroutine safe and it must not be used in runtime. assign callbacks on the start of your process only.
callback func(newUserData *User) - Callback to be invoked when a new user is created.
func OnNewConnection(callback func(*User))
OnNewConnection assigns a callback on new user connection
[IMPORTANT] This function is not goroutine safe and it must not be used in runtime. assign callbacks on the start of your process only.
callback func(newUserData *User) - Callback to be invoked when a new user is created.
func SetTCPState(sid string, state *tcp.State)
SetTCPState [INTERNAL USE ONLY] Sets TCP user state to the user data and updates TTL
[NOTE] Uses mutex lock internally.
sid string - User SID of the target user to updated. state *tcp.State - TCP state to be assigned to the user.
func SetUDPStateAndRUDPConn(sid string, state *udp.State)
SetUDPStateAndRUDPConn [INTERNAL USE ONLY] Sets UDP user state to the user data and updates TTL
[NOTE] Uses mutex lock internally.
sid string - User SID of the target user to updated. state *udp.State - UDP state to be assigned to the user.
func SetUserByID(sid string, user *User, ttl int64) bool
SetUserByID Sets a user data by sid
[NOTE] Uses mutex lock internally.
sid string - User SID to store in the server memory. userData *User - User to be stored. ttl int64 - TTL of the stored user in seconds. This will be extended by using Extend etc.
func SetWSState(sid string, state *ws.State)
SetWSState [INTERNAL USE ONLY] Sets WebSocket state to the user data and updates TTL
[NOTE] Uses mutex lock internally.
sid string - User SID of the target user to updated. state *ws.State - WebSocket state to be assigned to the user.
func SetupAsConnector(ttl int64)
SetupAsConnector Sets up as Connector server
ttl int64 - TTL of the health check in seconds.
func SetupAsTCPServer()
SetupAsTCPServer Sets up as TCP server
func SetupAsUDPServer()
SetupAsUDPServer Sets up as UDP server
func SetupAsWebSocketServer()
SetupAsWebSocketServer Sets up as TCP server
func UpdateUserByID(sid string) bool
UpdateUserByID Updates TTL of user data in the vault
[NOTE] Uses mutex lock internally.
sid string - User SID of the target user to updated.
User User data structure
type User struct {
// unique ID to udentify the user by
ID string
SID string
SIDBytes []byte
// key value storage - use user.Get() and user.Set() to access this map or should ONLY be used with Update()
Data map[string]interface{}
Payload []byte
// used only by WebSocket as Payload
WSData map[string]interface{}
WSState *ws.State
TCPState *tcp.State
UDPState *udp.State
RUDPConn *udp.Connection
// User client local address list byte array from UDP State
UDPClientLocalAddrBytes []byte
// UDPState is always a new one..
UDPClientKey string
// encryption keys
EncryptionKey []byte
EncryptionIV []byte
EncryptionMacKey []byte
// reconnect flag
Reconnect bool
// contains filtered or unexported fields
}
func CreateBlankUser(sid, uid string) *User
CreateBlankUser creates an incomplete user to be used as a dummy
Usage Example: Create a dummy user to create an empty room and/or group without actual client.
sid string - Blank user SID. uid string - Blank user ID.
func GetUserByID(sid string) *User
GetUserByID Returns a user by its SID - intended to be used by UDP server
[NOTE] Uses mutex lock internally.
sid string - User SID of the target user.
func (user *User) Disconnect()
Disconnect disconnects the client from the server
func (user *User) Get(key string) interface{}
Get [Deprecated] returns a value associated with the key (SID) given
[NOTE] Uses mutex lock internally.
User data must be handled by the user and nobody else, so no race condition...
[IMPORTANT] When you get a byte array, the value may become base64 string (This happens when user moves from one node to another)
[IMPORTANT] value does NOT support struct. If you need to store a a structured data, please use map instead
[IMPORTANT] If you store complex data types such as maps etc... all value type will be interface{}
[IMPORTANT] If the value is numeric, the data type may become float64:
numInterface := userData.Get("num") // this maybe float64
var num int
if numInterface == nil {
num = 0 // Get() can return a nil
}
if _, ok := numInterface.(float64); ok {
num = int(numInterface.(float64)) // cast it to be int
} else {
num = numInterface.(int)
}
key string - User property key of the value to retrieve.
func (u *User) GetAsBool(k string) bool
GetAsBool returns user data by its key as a bool.
[IMPORTANT] Returns false if the value does not exist or invalid.
func (u *User) GetAsBytes(k string) []byte
GetAsBytes returns user data by its key as a string.
func (u *User) GetAsFloat64(k string) float64
GetAsFloat64 returns user data by its key as a float64.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsInt16(k string) int16
GetAsInt16 returns user data by its key as a int16.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsInt32(k string) int32
GetAsInt32 returns user data by its key as a int32.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsInt64(k string) int64
GetAsInt64 returns user data by its key as a int64.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsInt8(k string) int8
GetAsInt8 returns user data by its key as a int8.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsString(k string) string
GetAsString returns user data by its key as a string.
[IMPORATNT] Returns an empty string if the value does not exist or invalid.
func (u *User) GetAsUint16(k string) uint16
GetAsUint16 returns user data by its key as a uint16.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsUint32(k string) uint32
GetAsUint32 returns user data by its key as a uint32.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsUint64(k string) uint64
GetAsUint64 returns user data by its key as a uint32.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (u *User) GetAsUint8(k string) uint8
GetAsUint8 returns user data by its key as a uint8.
[IMPORTANT] Returns 0 if the value is invalid or not found.
func (user *User) GetClientAddr() string
GetClientAddr returns the user client address
func (user *User) GetClientKey() string
GetClientKey returns clientKey
func (user *User) OnNewConnection(callback func())
OnNewConnection [INTERNAL USE ONLY]
callback func() - Callback to be invoked when a new user connection is establied with the client.
func (user *User) Push(message []byte, reliable bool)
Push [Deprecated] use ServerPush instead
func (user *User) Respond(message []byte, status uint8, reliable bool)
Respond [Deprecated] use ServerRespond instead
func (user *User) Send(ver uint8, cmd uint16, message []byte, status uint8, reliable bool)
Send [Deprecated] Sends a packet from the server to the target user client with a response status
func (user *User) ServerPush(ver uint8, cmd uint16, message []byte, reliable bool)
ServerPush Sends a push packet from the server to the target user client
ver uint8 - Server push message command version. cmd uint16 - Server push message command ID. message []byte - Message byte array to be sent as a push. reliable bool - If true, UDP will become RUDP.
func (user *User) ServerRespond(message []byte, ver uint8, cmd uint16, status uint8, reliable bool)
ServerRespond sends a packet as a response w/ ver and cmd of your choice
message []byte - Message byte array to be sent as a response. ver uint8 - Server response command version. cmd uint16 - Server response command ID. status uint8 - Server response status. Status consts are avialble in server package. server.Ok (success), server.Bad (error caused by the user), server.Err (error caused by the server). reliable bool - If true, UDP will become RUDP.
func (user *User) Set(key string, value interface{})
Set [Deprecated] stores a value along with the key (SID): the value will remain stored until user object is discarded
[NOTE] Uses mutex lock internally.
User data must be handled by the user and nobody else, so no race condition....
[IMPORTANT] value does NOT support struct. If you need to store a a structured data, please use map instead
[IMPORTANT] If you store complex data types such as maps etc... all value type will be interface{}
key string - Key of the user property to be set.
value interface{} - Value of the user property to be set.
func (u *User) SetAsBool(k string, v bool) bool
SetAsBool sets user data by a key given as a bool.
func (u *User) SetAsBytes(k string, v []byte) bool
SetAsBytes sets user data by a key given as a byte array.
func (u *User) SetAsFloat64(k string, v float64) bool
SetAsFloat64 sets user data by a key given as a float64.
func (u *User) SetAsInt16(k string, v int16) bool
SetAsInt16 sets user data by a key given as a int16.
func (u *User) SetAsInt32(k string, v int32) bool
SetAsInt32 sets user data by a key given as a int32.
func (u *User) SetAsInt64(k string, v int64) bool
SetAsInt64 sets user data by a key given as a int64.
func (u *User) SetAsInt8(k string, v int8) bool
SetAsInt8 sets user data by a key given as a int8.
func (u *User) SetAsString(k string, v string) bool
SetAsString sets user data by a key given as a string.
func (u *User) SetAsUint16(k string, v uint16) bool
SetAsUint16 sets user data by a key given as a uint16.
func (u *User) SetAsUint32(k string, v uint32) bool
SetAsUint32 sets user data by a key given as a uint32.
func (u *User) SetAsUint64(k string, v uint64) bool
SetAsUint64 sets user data by a key given as a uint64.
func (u *User) SetAsUint8(k string, v uint8) bool
SetAsUint8 sets user data by a key given as a uint8.
func (user *User) ThrottledPush(throttleTime int64, msg []byte, reliable bool)
ThrottledPush [Deprecated] use ThrottledServerPush instead
[NOTE] Uses mutex lock internally.
func (user *User) ThrottledServerPush(throttleTime int64, ver uint8, cmd uint16, msg []byte, reliable bool)
ThrottledServerPush sends a server push packet if the packet sent previously has past throttleTime previously set.
[NOTE] Uses mutex lock internally.
If not, the packet will be "Dropped". throttleTime is in milliseconds.
func (user *User) Update(key string, op func(data interface{}))
Update allows a custom operation function to "update" user data by its key
[NOTE] Uses mutex lock internally.
[IMPORTANT] value does NOT support struct. If you need to store a a structured data, please use map instead
[IMPORTANT] If you store complex data types such as maps etc... all value type will be interface{}
key string - Key of the user property to be updated.
op func(targetPropertyValue interface{}) - Operation function to handle the property update.
func (user *User) WSMessage(ver float64, cmd float64, msg map[string]interface{})
WSMessage sends a WebSocket message to user client. Only available for WebSocket server.
ver float64 - Server message command version.
cmd float64 - Server message command ID.
msg map[string]interface{} - Server message data to be sent.