Parse Nginx Log.js

parse-nginx-log.js

import fs from "node:fs";

fs.readFile("./nginx_log.txt", "utf8", (err, data) => {
  const lines = data.split(/\r?\n/);
  let reportsIP = {};
  let reportsDate = {};
  for (const line of lines) {
    if (line) {
      const ipAdress = line.match(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/)[0];

      if (!reportsIP[ipAdress]) {
        reportsIP[ipAdress] = {
          totalAkses: 0,
          logs: [],
        };
      }
      reportsIP[ipAdress]["totalAkses"]++;

      const dateString = line.match(/\[(.*?)\]/)[1];
      const dates = dateString.match(/(\d{2})\/(\w{3})\/(\d{4})/);

      const day = dates[1];
      const month = dates[2];
      const year = dates[3];

      const date = `${year}-${month}-${day}`;

      if (!reportsDate[date]) {
        reportsDate[date] = {
          totalAkses: 0,
          ip: [],
        };
      }

      reportsDate[date]["totalAkses"]++;
      if (reportsDate[date]["ip"].indexOf(ipAdress) === -1) {
        reportsDate[date]["ip"].push(ipAdress);
      }
      reportsIP[ipAdress]["logs"].push(line);
    }
  }

  console.log(
    JSON.stringify({
      reportsDate,
      reportsIP,
    }),
  );
});