Discord.js | Key Sistemi

    try {
      var randomkey =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
      var sonuc = "";
      for (var i = 0; i < randomkey.length; i++) {
        sonuc += randomkey.charAt(Math.floor(Math.random() * randomkey.length));
      }

      let kisi = {
        key: sonuc,
        isim: message.author.username,
        authorid: message.author.id,
        nowlimit: 1,
        limit: 4,
      };

      fs.readFile("./deneme.json", "utf8", async (err, data) => {
        if (err) {
          console.log(`HATA: ${err}`);
        } else {
          const databases = JSON.parse(data);

          for (let index = 0; index < databases.length; index++) {
            const veri = databases[index];
            if (veri.authorid === message.author.id) {
              if (veri.nowlimit >= 4) {
                message.reply(`Key Sınırına Ulaştınız.`);
                return;
              }

              if (veri.nowlimit === 1) {
                veri.nowlimit = 2;
              } else if (veri.nowlimit === 2) {
                veri.nowlimit = 3;
              } else if (veri.nowlimit === 3) {
                veri.nowlimit = 4;
              }
            }
          }

          message.author.send(sonuc);
          await databases.push(kisi);

          fs.writeFile(
            "deneme.json",
            JSON.stringify(databases, null, 4),
            (err) => {
              if (err) {
                console.log(`HATA: ${err}`);
              }
            }
          );
        }
      });
    } catch (e) {
      message.channel.send(`HATA: ${e.message}`);
    }

    try {
      fs.readFile("./deneme.json", "utf8", (err, data) => {
        const databasess = JSON.parse(data);

        databasess.map((ds) => {
          if (message.author.id === ds.authorid) {
            message.author.send("```" + ds.key + "```");
          }
        });
      });
    } catch (e) {
      message.channel.send(`HATA: ${e.message}`);
    }