Socket works the for a few seconds then fails - reactjs

Question

I've managed to establish a connection using socket. It works great for the first few seconds after that it runs super slow takes like almost 2-3 mins to complete a request. And then it produces this error continuously. The app doesn't crash it just runs slowly with the error displaying countless times.
Firefox can’t establish a connection to the server at ws://localhost:5000/socket.io/?EIO=4&transport=websocket&sid=9S6kqHJdHHXQgrobAAHp..
Error on console.
Main.js
function Home(props) {
const [Username , setUsername] = useState("")
const [SearchedData, setSearchedData] = useState()
const [Data, setData] = useState()
const socket = io('http://localhost:5000')
React.useEffect(() => {
// socket.current = io('http://localhost:5000')
socket.emit("content","yada")
socket.on("get-data", data => {
setData(data)
})
})
function NavBar(props){
const handleClick = (e) => {
const {id} = e.target
if(id === "Post-btn"){
if(Content.length > 0){
let data = {
Username: "yada", Content
}
props.socket.emit("store-data", data)
}
}
return(
Tags....
)}
function Content (props) {
const onLike = (e) => {
const { id } = e.target.dataset
const data = {
username: "yada",
id : id
}
// console.log(data)
props.socket.emit("like", data)
}
return(
Tags.....
)
}
server.js
mongoose.connect(process.env.MongoDB,
{ useNewUrlParser: true, useUnifiedTopology: true }).then(() => {
console.log("Database Connected")
}).catch(err => {
console.log(err)
});
const server = app.listen(process.env.Port, () => {
console.log("Connected on " + process.env.Port)
})
const io = socket(server, {
cors:{
origin: "http://localhost:3000",
credential: true,
}
})
let cuid;
io.on("connection", (socket) => {
socket.on("content", username => {
Comments.find({},(err, data) => {
if(!err)
socket.emit("get-data", data)
})
})
socket.on("store-data", data => {
const {Username, Content} = data
const newdata = new Comments({
userName: Username,
content: Content,
createdAt: new Date().toDateString(),
replies: []
})
newdata.save().then(data => {
for(const d in data)
if(d === "_id"){
Users.findOneAndUpdate({username: Username}, {$push: {UserContent: data[d]}}, {new: true}, (err, save) => {
if(err)
console.log(err)
else
console.log(save)
})
}
})
})
socket.on("like", data => {
const {username, id} = data
Users.findOne({username:username}, (err, data) => {
if(!err){
cuid = data['id']
console.log(cuid)
Comments.findByIdAndUpdate(id, {$set: {score: data['_id']}}, {upsert: true}, (err, d) => {
if(!err){
console.log(d)
}
})
}
})
})
})

Answer 1

Looking at the code provided, I noticed there is an useEffect without params. This may be causing a loop until the application crashes.
React.useEffect(() => {
// socket.current = io('http://localhost:5000')
socket.emit("content","yada")
socket.on("get-data", data => {
setData(data)
})
socket.on("Updated", data => {
setData(data)
})
}, []); <- this is missing
This empty array indicates that the content inside the useEffect will only run once.
More about this https://reactjs.org/docs/hooks-intro.html