javascript - Save JSON file to grab other data from it later - Stack Overflow

I want to be able to save my json file with new data and then call upon that data so that I can save ne

I want to be able to save my json file with new data and then call upon that data so that I can save new data again. Right now all it is doing is it is, when I call upon any part of the JSON file's data, staying the same the last time I manually saved it. (I did edit some code and a better description of my problem) Thank you in advance! Here is my code there is no error log:

const Discord = require('discord.js');
const botconfig = require("./botconfig.json");
const fs = require("fs");
const bot = new Discord.Client();
    bot.on("message", async message => {
        let prefix = botconfig.prefix;
        let messageArray = message.content.split(" ");
        let cmd = messageArray[0];
        let args = messageArray.slice(1);
        console.log(message.member.id)
        var playerFile = require(`./playerData/${message.member.id}.json`);
        if (message.author.bot) return;
        if (message.channel.type === "dm") return;
        if (cmd.charAt(0) === prefix) {
            if(cmd === `${prefix}fc`){
                fs.exists(`./playerData/${message.member.id}.json`, function(exists) {
                    if(exists){
                    let ar = args[0];
                    let ninConsole = args[1];
                    let code = args[2];
                    if(ar === "add" || ar === "remove"){
                        if(code){
                            if(ar === "add"){
                                console.log("Add");
                                if(ninConsole === "switch"){
                                    console.log("Switch " + code); 
                                    let fileContent = `{"switch": "${code}","threeDS": "${playerFile.threeDS}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                                if(ninConsole === "3ds"){
                                    let fileContent = `{"switch": "${playerFile.switch}","threeDS": "${code}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                            }
                            if(ar === "remove"){
                                if(ninConsole === "switch"){
                                    let fileContent = `{"switch": "None","threeDS": "${playerFile.threeDS}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                                if(ninConsole === "3ds"){
                                    let fileContent = `{"switch": "${playerFile.switch}","threeDS": "None"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                            }
                        }
                    }
                }else{
                    return;
                }
                });
            }

I want to be able to save my json file with new data and then call upon that data so that I can save new data again. Right now all it is doing is it is, when I call upon any part of the JSON file's data, staying the same the last time I manually saved it. (I did edit some code and a better description of my problem) Thank you in advance! Here is my code there is no error log:

const Discord = require('discord.js');
const botconfig = require("./botconfig.json");
const fs = require("fs");
const bot = new Discord.Client();
    bot.on("message", async message => {
        let prefix = botconfig.prefix;
        let messageArray = message.content.split(" ");
        let cmd = messageArray[0];
        let args = messageArray.slice(1);
        console.log(message.member.id)
        var playerFile = require(`./playerData/${message.member.id}.json`);
        if (message.author.bot) return;
        if (message.channel.type === "dm") return;
        if (cmd.charAt(0) === prefix) {
            if(cmd === `${prefix}fc`){
                fs.exists(`./playerData/${message.member.id}.json`, function(exists) {
                    if(exists){
                    let ar = args[0];
                    let ninConsole = args[1];
                    let code = args[2];
                    if(ar === "add" || ar === "remove"){
                        if(code){
                            if(ar === "add"){
                                console.log("Add");
                                if(ninConsole === "switch"){
                                    console.log("Switch " + code); 
                                    let fileContent = `{"switch": "${code}","threeDS": "${playerFile.threeDS}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                                if(ninConsole === "3ds"){
                                    let fileContent = `{"switch": "${playerFile.switch}","threeDS": "${code}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                            }
                            if(ar === "remove"){
                                if(ninConsole === "switch"){
                                    let fileContent = `{"switch": "None","threeDS": "${playerFile.threeDS}"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                                if(ninConsole === "3ds"){
                                    let fileContent = `{"switch": "${playerFile.switch}","threeDS": "None"}`
                                    fs.writeFile(`./playerData/${message.member.id}.json`, fileContent, (err) => {
                                        if (err) {
                                            console.error(err);
                                            return;
                                        };
                                    });
                                }
                            }
                        }
                    }
                }else{
                    return;
                }
                });
            }
Share Improve this question edited Mar 22, 2018 at 14:08 NintendoZaedus asked Mar 22, 2018 at 4:17 NintendoZaedusNintendoZaedus 6833 gold badges8 silver badges22 bronze badges 3
  • 1 You seem to have an issue or your code. You have if(ar === "add"){ and then inside that if if(ar === "remove"){ ar can't be add and remove – André Commented Mar 22, 2018 at 9:49
  • Could you explain what is not working? Or what did you expected it to do? – André Commented Mar 22, 2018 at 9:52
  • @AndréPaulo thank you for that, I probably would have overlooked it, but even then that was not the main problem I was experiencing. And yes I have changed my description of my problem, and what I want and some of the code. – NintendoZaedus Commented Mar 22, 2018 at 14:10
Add a ment  | 

1 Answer 1

Reset to default 2

Here is an example of saving data to a JSON file using fs:

JSON.parse(fs.readFileSync("./points.json", "utf8"));

There is an example on how to use this code to make a points system for a discord bot here: https://anidiotsguide_old.gitbooks.io/discord-js-bot-guide/content/coding-guides/storing-data-in-a-json-file.html

Here is the code for this example:

const Discord = require("discord.js");
const fs = require("fs");
const client = new Discord.Client();

let points = JSON.parse(fs.readFileSync("./points.json", "utf8"));
const prefix = "+";

client.on("message", message => {
  if (!message.content.startsWith(prefix)) return;
  if (message.author.bot) return;

  if (!points[message.author.id]) points[message.author.id] = {
    points: 0,
    level: 0
  };
  let userData = points[message.author.id];
  userData.points++;

  let curLevel = Math.floor(0.1 * Math.sqrt(userData.points));
  if (curLevel > userData.level) {
    // Level up!
    userData.level = curLevel;
    message.reply(`You"ve leveled up to level **${curLevel}**! Ain"t that dandy?`);
  }

  if (message.content.startsWith(prefix + "level")) {
    message.reply(`You are currently level ${userData.level}, with ${userData.points} points.`);
  }
  fs.writeFile("./points.json", JSON.stringify(points), (err) => {
    if (err) console.error(err)
  });

});

client.login("SuperSecretBotTokenHere");

I hope this helps!

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