Socket.io matchmaking
Index
- How do you use Socket events?
- What is the difference between socket event and emit to socket?
- How do we send information back to the client from socket?
- What is the callback function in emit to socket?
- What is event handling in socket Io?
- How to create custom message events in socket Io?
- How do you emit events from a socket?
- What is socket EventEmitter in NodeJS?
- How do you send and receive data from a socket?
- How to get a socket ID from received message?
- How to receive data from socket client in Python?
- How do I bind a socket client to a socket server?
How do you use Socket events?
We use a Socket Event when the server is checking which player is tagged as It, which is emitted by beginRound (line 99) on the server. Then, we grab our objects server ID from the array and use the Dictionary Value to break it down into the various pieces of data it contains.
What is the difference between socket event and emit to socket?
Socket Event can be thought of as Receive Message since it will only activate once the set message has been broadcasted from the server. The best way to think when using Socket Event and Emit to Socket is that Socket Event reacts only to information coming from the server, whereas Emit to Socket is called in reaction to things done locally.
How do we send information back to the client from socket?
We then send that information back to the client by passing our dictionary ack to the callback function, which becomes the resulting value of the calling Emit to Socket behaviour. Afterwards, a timeout call for 5 seconds is made for finally beginning the round, now that everyone has all the info they need to play the game.
What is the callback function in emit to socket?
The second parameter is a function that we call later on in the socket event to signal the client. The Emit to Socket behaviour will only continue execution if the callback function is called on the server. Here, weve named that parameter callback. This will create an instance of a structure that will contain essential information about a room.
What is event handling in socket Io?
Socket.IO - Event Handling. Sockets work based on events. There are some reserved events, which can be accessed using the socket object on the server side. In the Hello World example, we used the connection and disconnection events to log when a user connected and left.
How to create custom message events in socket Io?
Message was a built-in event provided by the API, but is of not much use in a real application, as we need to be able to differentiate between events. To allow this, Socket.IO provides us the ability to create custom events. You can create and fire custom events using the socket.emit function. Following code emits an event called testerEvent −
How do you emit events from a socket?
We can also emit events from the client. To emit an event from your client, use the emit function on the socket object. To handle these events, use the on function on the socket object on your server. So, now if we go to localhost:3000, we will get a custom event called clientEvent fired.
What is socket EventEmitter in NodeJS?
On the server-side, the Socket instance extends the Node.js EventEmitter class. On the client-side, the Socket instance uses the event emitter provided by the component-emitter library, which exposes a subset of the EventEmitter methods. Adds the listener function to the end of the listeners array for the event named eventName.
