node-go/packages/server/server.js

const createError = require("http-errors");
const express = require("express");

const cors = require("cors");

const path = require("path");
const cookieParser = require("cookie-parser");
const logger = require("morgan");

const db = require("./data/db");

const dotenv = require("dotenv");
dotenv.config();

const indexRouter = require("./routes/index");
const usersRouter = require("./routes/users");
const authRouter = require("./routes/auth");
const apiRouter = require("./routes/api");

const app = express();

const allowedOrigin = process.env.REACT_ADDRESS;
const corsOptions = {
  origin: allowedOrigin,
  credentials: true,
  methods: "GET,PUT,POST,DELETE",
};

app.options("*", cors(corsOptions));
app.use("*", cors(corsOptions));

// disable logging for tests
if (process.env.NODE_ENV !== "test") app.use(logger("dev"));

app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use("/", indexRouter);
app.use("/users", usersRouter);
app.use("/auth", authRouter);
// @auth
app.use("/api/v1", apiRouter);

// 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.send("error");
});

module.exports = app;