calendar/apps/api/v2/src/middleware/app.logger.middleware.ts

import { Injectable, NestMiddleware, Logger } from "@nestjs/common";
import { Request, NextFunction } from "express";

import { Response } from "@calcom/platform-types";

@Injectable()
export class AppLoggerMiddleware implements NestMiddleware {
  private logger = new Logger("HTTP");

  use(request: Request, response: Response, next: NextFunction): void {
    const { ip, method, originalUrl } = request;
    const userAgent = request.get("user-agent") || "";

    response.on("close", () => {
      const { statusCode } = response;
      const contentLength = response.get("content-length");
      this.logger.log(`${method} ${originalUrl} ${statusCode} ${contentLength} - ${userAgent} ${ip}`);
    });
    next();
  }
}