Binding a function to event

Listening to events become simple with decorators

Overview
SugoiJS provide single line binding solution for binding a class method to socket event
Bind socket events
Listening to socket events become simple with @SocketOn decorator
@SocketOn(event: string, namespace: string = "/", ...middlewares:Array<ISocketMiddleware>)
event - The event name
namespace - The related namespace which the socket should be related to.
middlewares - 0...n arguments of middleware functions which should occur before the event callback function.
Another signature of this decorator is:
@SocketOn(event: string, ...middlewares:Array<ISocketMiddleware>)
type ISocketMiddleware = (socket:SocketIOStatic.Socket,data:any)=>Promise<any>|any
This decorator registers the function as a callback for an event.
In case middlewares functions were passed, those methods will occur right before the callback  function.
Example
@SocketOn("message","/",(socket,data)=>{
    console.log("log message data: %s from socket id: %s",data,socket.id);
})
function messageHandler(socket,data){
    socket.to(data.room).emit('message',data.message)
}
You can bind one function to multiple events by use multiple @SocketOn decorators.
Bind Server events
Listening to Socket events become simple with @SocketServerOn decorator
@SocketServerOn(event: string, namespace: string = "/", ...middlewares:Array<ISocketMiddleware>)
event - The event name
namespace - The related namespace which the socket should be related to.
middlewares - 0...n arguments of middleware functions which should occur before the event callback function.
Another signature of this decorator is:
@SocketServerOn(event: string, ...middlewares:Array<ISocketMiddleware>)
type ISocketMiddleware = (socket:SocketIOStatic.Socket,data:any)=>Promise<any>|any
​
This decorator registers the function as a callback for an event.
In case middlewares functions were passed, those methods will occur right before the callback  function.
Example
@SocketSererOn("connection","/",(socket,data)=>{
    console.log("log message data: %s from socket id: %s",data,socket.id);
})
function messageHandler(socket){
    socket.emit('connected',{msg:"welcome"})
}
You can bind one function to multiple events by use multiple @SocketServerOn decorators.

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Last modified 3yr ago