set routings

+const express=require('express')
+const router=express.Router()
+
+module.exports=router
\ No newline at end of file

+const express=require('express')
+const router=express.Router()
+
+module.exports=router
\ No newline at end of file

+const express=require('exress')
+const router=express.Router()
+
+router.use('/user',require('./user'))
+router.use('/deck',require('./deck'))
+router.use('/card',require('./card'))
+
+module.exports=router
\ No newline at end of file

+const express=require('express')
+const router=express.Router()
+
+const signUp=require('./signUp')
+const login=require('./login')
+

+const express=require('express')
+const session=require('express-session')
+const findById=require('../../database/user/findById')
+const mysql=require('mysql')
+const bcrypt=require('bcrypt-nodejs')
+const dbconfig=require('../../dbconfig')
+const connection=mysql.createConnection(dbconfig)
+connection.connect()
+
+exports.SignUp=(req,res)=>{
+    const userId=req.body.userId
+    const password=req.body.password
+    const DataCheck=()=>{
+        return new Promise((resolve,reject)=>{
+            if(!userId || !password){
+                return reject({
+                    code: 'request_body_error',
+                    message: 'request body is not defined'
+                })
+            }
+            else resolve()
+        })
+    }
+    const SignUp=()=>{
+        const user=findById(userId)
+        if(!user){
+            const hash=bcrypt.hashSync(password,bcrypt.genSaltSync(10),null)
+            connection.query(`insert into user (userId,password) values (${userId},${hash});`,(err,results,fields)=>{
+                if(err){
+                    throw err
+                }
+                else{
+                    console.log(results)
+                }
+            })
+        }
+        else{
+            return reject({
+                code:'User_already_exists',
+                message:'User already exists'
+            })
+        }
+    }
+
+    DataCheck()
+        .then(SignUp)
+        .then(()=>{
+            return res.status(200).json({userId:userId})
+        })
+        .catch((err)=>{
+            console.log(err)
+            res.status(500).json(err.message||err)
+        })
+}
\ No newline at end of file

@@ -9,6 +9,8 @@ const morgan=require('morgan')
 const cheerio=require('cheerio')
 const mysql=require('mysql')
 require('dotenv').config()
+app.use('/api',require('./api'))
+const dbconfig=require('dbconfig')
 const app=express()
 
 app.use(morgan('[:date[iso]] :method :status :url :response-time(ms) :user-agent'))
@@ -23,13 +25,7 @@ app.use(function (req, res, next) {
     next()
 })
 
-const connection=mysql.createConnection({
-    host:process.env.DB_HOST,
-    user:process.env.DB_USER,
-    password:process.env.DB_PASSWORD,
-    database:'user',
-    port:''
-})
+const connection=mysql.createConnection(dbconfig)
 
 let allCards=[]
 fs.readFile('cardskoKR.json',(err,data)=>{
@@ -50,8 +46,10 @@ app.get('/main',(req,res)=>{
     if(!req.session.sid)
         res.redirect('/login')
     else {
-        fs.readFile('./views/main')
-        res.writeHead(200, {'Content-Type': 'text/html'})
+        fs.readFile('./views/main',(err,data)=>{
+            res.writeHead(200, {'Content-Type': 'text/html'})
+            res.end(data)
+        })
     }
 })
 

+const express=require('express')
+const router=express.Router()
+
+module.exports=router
\ No newline at end of file

+const express=require('express')
+const router=express.Router()
+
+module.exports=router
\ No newline at end of file

+const express=require('express')
+const router=express.Router()
+
+router.use('/user',require('./user'))
+router.use('/deck',require('./deck'))
+router.use('/card',require('./card'))
+
+module.exports=router
\ No newline at end of file

+const mysql=require('mysql')
+const dbconfig=require('../../dbconfig')
+
+exports.findById=(userId)=>{
+    const connection=mysql.createConnection(dbconfig)
+    connection.connect()
+
+    connection.query(`select * from user where userId=${userId}`,(err,result,fields)=>{
+        if(err){
+            throw err
+        }
+        else{
+            return result
+        }
+    })
+}
+
+

+const express=require('express')
+const router=express.Router()
+
+app.get
+
+module.exports=router
\ No newline at end of file

+require('dotenv').config()
+const mysql=require('mysql')
+
+module.exports={
+    host:process.env.DB_HOST,
+        user:process.env.DB_USER,
+    password:process.env.DB_PASSWORD,
+    database:'WhoAreYou',
+    port:process.env.DB_PORT
+}
\ No newline at end of file