I created a socketio demo as below:
services/socketiodemo.service.js
"use strict";
const ApiGateway = require("moleculer-web");
// require Socket.IO and Moleculer's Socket.IO mixin
const SocketIOService = require("moleculer-io");
module.exports = {
name: "socketiodemo",
mixins: [ApiGateway, SocketIOService],
settings: {
io: {
path: "/socket.io",
cors: true
}
},
events: {
// handle connections of clients
"socket.connected" (ctx) {
console.log(`Socket ${ctx.socket.id} connected to ${ctx.nodeID}.` );
ctx.emit("hello", "Connected successfully!");
},
"socket.disconnected" (ctx) {
console.log(`Socket ${ctx.socket.id} disconnected from ${ctx.nodeID}`)
},
// handle incoming message from the connected client
"socket.message" (ctx, data) {
console.log(`Socket ${ctx.socket.id} sent message: ${data}`);
// broadcast the message to all connected clients
ctx.broadcast("message", data);
},
},
}
now I use html client for testing:
<!DOCTYPE html>
<html>
<head>
<title>Socket.IO Client Example</title>
<script src="https://cdn.socket.io/socket.io-3.0.3.min.js"></script>
<script>
// create socket.io client connection
const socket = io("http://localhost:3000", {
path: "/socket.io",
});
// handle incoming message from server
socket.on("message", function (message) {
console.log("Incoming message: ", message);
});
// handle incoming message from server when connected
socket.on("hello", function (message) {
console.log("Connected to server: ", message);
});
// sendmessage to server when button is clicked
function sendMessage() {
const input = document.getElementById("message-input");
const message = input.value;
socket.emit("message", message);
input.value = "";
}
</script>
</head>
<body>
<div>
<input
type="text"
id="message-input"
placeholder="Enter message..."
/>
<button onclick="sendMessage()">Send</button>
</div>
</body>
</html>
but get 404 Not Found error:
1.please tell me why there get this issue?
2.and I check the localhost:3000 also not find the /socket.io (only /list-aliases API), why don't have /socket.io? and whether this is related to first question?
Maybe need nginx config or correct route set in node.js (express etc) like