app.js

var createError = require("http-errors");
// import { CreateHttpError } from "http-errors";
var express = require("express");
var path = require("path");
var cookieParser = require("cookie-parser");
var logger = require("morgan");
var sassMiddleware = require("node-sass-middleware");
//코멘트 컨트롤러 불러오기
var comments = require("./server/controllers/comments");

//몽구스 ODM
var mongoose = require("mongoose");
//세션 저장용 모듈
var session = require("express-session");
var MongoStore = require("connect-mongo")(session);
//패스포트와 경고 플래시 메시지 모듈 가졍괴
var passport = require("passport");
var flash = require("connect-flash");

var indexRouter = require("./server/routes/index");
var usersRouter = require("./server/routes/users");

var app = express();

// view engine setup
app.set("views", path.join(__dirname, "server/views/pages"));
app.set("view engine", "ejs");

//데이터베이스 설정
var config = require("./server/config/config");
//데이터베이스 연결
mongoose.connect(config.url, { useNewUrlParser: true });
//몽고 DB가 실행중인지 체크
mongoose.connection.on("error", function() {
  console.error("MongoDB Connection Error, Make sure MongoDB is running");
});
//패스포트 설정
require("./server/config/passport")(passport);

app.use(logger("dev"));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(
  sassMiddleware({
    src: path.join(__dirname, "public"),
    dest: path.join(__dirname, "public"),
    indentedSyntax: true, // true = .sass and false = .scss
    sourceMap: true
  })
);
app.use(express.static(path.join(__dirname, "public")));

//패스포트용
//세션용 비밀키
app.use(
  session({
    secret: "sometextgohere",
    saveUninitialized: true,
    resave: true,
    // express-session 과 connect-mongo를 이용해 몽고DB에 세션 저장
    store: new MongoStore({
      url: config.url,
      collection: "session"
    })
  })
);
//패스포트 인증 초기화
app.use(passport.initialize());
//영구적인 로그인 세션
app.use(passport.session());
//플래시 메시지
app.use(flash());

app.use("/", indexRouter);
app.use("/users", usersRouter);
app.get("/comments", comments.hasAuthorization, comments.list);
app.post("/comments", comments.hasAuthorization, comments.create);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get("env") === "development" ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render("error");
});

module.exports = app;
app.set("port", process.env.PORT || 3000);
var server = app.listen(app.get("port"), function() {
  console.log("Express server listening in port " + server.address().port);
});