server.js

const express = require('express');
const app = express();

//post 받아오기 위해 body-parser 사용
app.use(express.urlencoded({ extended: false }))

//react ajax 통신
app.use(express.json());
const cors = require('cors');
app.use(cors());

const path = require('path');
require('dotenv').config();

//swagger
const swaggerUi = require("swagger-ui-express");
const swaggerFile = require("./swagger-output");
app.use("/api-docs", swaggerUi.serve, swaggerUi.setup(swaggerFile));

// DB connection
const id = process.env.DBid
const pwd = process.env.DBpwd
const url = process.env.url

// userId auto-increment
var autoIncrement = require('mongoose-auto-increment');
const mongoose = require("mongoose");
var connection = mongoose.connection;
mongoose.connect(`mongodb://${id}:${pwd}@${url}`, { useNewUrlParser: true, useUnifiedTopology: true }, function (err) {
    if (err) {
        console.error("mongoDB Connection Error!", err);
    }
    console.log("mongoDB Connected!");

    // Server Open
    app.listen(8080, function () {
        console.log("Server listening on port 8080!");
    });
});
autoIncrement.initialize(connection);

//router 사용
const studyRouter = require("./routes/study");
const studylistRouter =require("./routes/studylist");
app.use('/study', studyRouter);
app.use('/studylist',studylistRouter);

//react bulid
app.use(express.static(path.join(__dirname,'../build')))
app.get('/',function(req,res){
    res.send(express.static(path.join(__dirname, '../build/index.html')));
})

// router 사용
const authRouter = require('./routes/auth');
app.use('/auth', authRouter);

const userRouter = require('./routes/users');
app.use('/users', userRouter);