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saving data in socket.io

HelloWorld answered on January 24, 2022 Popularity 6/10 Helpfulness 1/10

answer saving data in socket.io

saving data in socket.io

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//On the server side when data is emitted to server
//Create a file where you want the data to goto like "data.txt"
const fs = require('fs')// You do not need any dependencies for fs

socket.on('message', (arg) => {
  //To add to the bottom of the file use this:
  fs.appendFile('data.txt', arg, function(err) {
    if (err) throw err;
    console.log('appended to data.txt')
  }
  //To add to the top of the file:
  fs.readFile('data.txt', function(err, data) {
    if (err) throw err;
    var alldata = arg + data;
    fs.writeFile('data.txt', alldata, function(err) {
      if (err) throw err;
      console.log('prepended to data.txt')
    }
  }
  //Now use this to read the file on load
  fs.readFile('data.txt', function(err, data) {
      if (err) throw err;
      socket.emit('OLD', data.toString());
    }
}

Popularity 6/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript saving-data socket.io

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Contributed on Jan 24 2022

HelloWorld

0 Answers Avg Quality 2/10

saving data in socket.io

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