nexus/server/src/middleware/logger.ts

import path from "node:path";
import fs from "node:fs";
import pino from "pino";
import { pinoHttp } from "pino-http";

const logDir = path.resolve(process.cwd(), ".paperclip", "logs");
fs.mkdirSync(logDir, { recursive: true });

const logFile = path.join(logDir, "server.log");

const sharedOpts = {
  translateTime: "HH:MM:ss",
  ignore: "pid,hostname",
};

export const logger = pino({
  level: "debug",
}, pino.transport({
  targets: [
    {
      target: "pino-pretty",
      options: { ...sharedOpts, ignore: "pid,hostname,req,res,responseTime", colorize: true, destination: 1 },
      level: "info",
    },
    {
      target: "pino-pretty",
      options: { ...sharedOpts, colorize: false, destination: logFile, mkdir: true },
      level: "debug",
    },
  ],
}));

export const httpLogger = pinoHttp({
  logger,
  customSuccessMessage(req, res) {
    return `${req.method} ${req.url} ${res.statusCode}`;
  },
  customErrorMessage(req, res) {
    return `${req.method} ${req.url} ${res.statusCode}`;
  },
});