Discord Bot JSON

const Discord = require('discord.js');
const client = new Discord.Client();
const auth = require('./auth.json');

const fs = require('fs');
const prefix = "/";
client.rep = require('./data.json');


client.on('ready', () => {
  console.log(`Logged in as ${client.user.tag}!`);
  client.user.setActivity('Sea of Thieves');
});

client.on('message', message => {

  if (message.content.startsWith(prefix + "rep")) {
    editedmessage = message.content.slice (4);

    client.rep [message.author.id] = {
      message: editedmessage
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Sea Dogs")) {
    seadogsinput = message.content.slice (16);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Sea Dogs reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Hunter's Call")) {
    hunterscallinput = message.content.slice (21);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput,
      hunterscall: hunterscallinput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Hunter's Call reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Gold Hoarders")) {
    goldhoardersinput = message.content.slice (21);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput,
      hunterscall: hunterscallinput,
      goldhoarders: goldhoardersinput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Gold Hoarders reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Order of Souls")) {
    orderofsoulsinput = message.content.slice (22);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput,
      hunterscall: hunterscallinput,
      goldhoarders: goldhoardersinput,
      orderofsouls: orderofsoulsinput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Order of Souls reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Merchant Alliance")) {
    merchantallianceinput = message.content.slice (25);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput,
      hunterscall: hunterscallinput,
      goldhoarders: goldhoardersinput,
      orderofsouls: orderofsoulsinput,
      merchantalliance: merchantallianceinput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Merchant Alliance reputation has been updated");
    });
  }

  else if (message.content.startsWith(prefix + "update Athena's Fortune")) {
    athenainput = message.content.slice (24);

    client.rep [message.author.id] = {
      message: editedmessage,
      seadogs: seadogsinput,
      hunterscall: hunterscallinput,
      goldhoarders: goldhoardersinput,
      orderofsouls: orderofsoulsinput,
      merchantalliance: merchantallianceinput,
      athena: athenainput
    }

    fs.appendFile("./data.json", JSON.stringify(client.rep, null, 4), err => {
      if(err) throw err;
      message.channel.send ("Your Athena's Fortune reputation has been updated");
    });
  }

  if (message.content.startsWith (prefix + "showrep")) {
    let _message = client.rep[message.author.id].message;
    let _seadogslevel = client.rep[message.author.id].seadogs;
    let _hunterscalllevel = client.rep[message.author.id].hunterscall;
    let _goldhoarderslevel = client.rep[message.author.id].goldhoarders;
    let _orderofsoulslevel = client.rep[message.author.id].orderofsouls;
    let _merchantalliancelevel = client.rep[message.author.id].merchantalliance;
    let _athenalevel = client.rep[message.author.id].athena;

    var embed = new Discord.RichEmbed()
      .setTitle(message.author.username + ", your Sea of Thieves reputation")
      .setDescription('some description')
      .setThumbnail(message.author.displayAvatarURL)
      .addField('Gamer Tag', _message)
      .addField('Sea Dogs', _seadogslevel, true)
      .addField('Hunter\'s Call', _hunterscalllevel, true)
      .addField('Gold Hoarders', _goldhoarderslevel, true)
      .addField('Order of Souls', _orderofsoulslevel, true)
      .addField('Merchant Alliance', _merchantalliancelevel, true)
      .addField('Athena\'s Fortune', _athenalevel, true)
      .setColor('#0x5fafaf')

    message.channel.send (embed);
  }

});

client.login(auth.token);