BPbperel·Jun 16, 2025Submission
Show HN: Socket-call – Call socket.io events like normal JavaScript functions
Hello HN,
I built a Typescript library (named socket-call, for lack of a more sexy name) whose goal is to be able to call socket.io events as regular functions.
So you declare your server-side like so:
...
const listenEvents = (services: UserServices) => ({
// Add your events here, the name of the event is the name of the function
login: async (username: string) => {
services._socket.data.user = { username };
console.log(`User ${username} logged in`);
setInterval(() => {
// Calling an event that's handled client-side
services.showServerMessage(`You're still logged in ${username}!`)
}, 1000);
return `You are now logged in ${username}!`;
},
});
and then on the client side you call them like normal async Javascript functions (and you can also create client-side event handlers):
Read the rest
...
const user = socket.addNamespace<UserEmitEvents, UserListenEvents>(
'/user'
);
// Calling an event that's declared server-side
user.login(username.value).then((message) => {
console.log('Server acked with', message);
});
// Handling an event that is sent by the server
user.showServerMessage = (message) => {
console.log('Server sent us the message', message);
}
I use this library for my own projects and would be interested to receive feedback about it :-)