diff --git a/models/ExamRoom.js b/models/ExamRoom.js
index 152ff93b..ec56321e 100644
--- a/models/ExamRoom.js
+++ b/models/ExamRoom.js
@@ -18,7 +18,7 @@ const ExamRoom = sequelize.define(tableName, {
     },
     roomId: {
         type: DataTypes.INTEGER,
-        allowNull: false,
+        allowNull: true,
         references: {
             model: Room,
             key: 'id'
@@ -26,7 +26,7 @@ const ExamRoom = sequelize.define(tableName, {
     },
     lecturerId: {
         type: DataTypes.INTEGER,
-        allowNull: false,
+        allowNull: true,
         references: {
             model: Lecturer,
             key: 'id'
diff --git a/routes/examSlot.js b/routes/examSlot.js
index 39f05310..7c0d2a26 100644
--- a/routes/examSlot.js
+++ b/routes/examSlot.js
@@ -9,7 +9,7 @@ import fs from 'fs'
 
 const router = express.Router()
 
-router.post('/create', async (req, res) => {
+router.post('/', async (req, res) => {
     const ePId = parseInt(req.body.ePId);
     const timeSlotId = parseInt(req.body.timeSlotId);
     const day = req.body.day;
@@ -106,28 +106,28 @@ router.get('/', async (req, res) => {
         let dayCount = 0
         let slotCount = 0
 
-        
+
 
         for (let i = 0; i < course.length; i++) {
             let daySlot = dayList[dayCount]
             let slot = slotList[slotCount].id
-            
-            if (roomSlot > process.env.NUMBER_OF_ROOM_IN_FLOOR * process.env.NUMBER_OF_ROOM_IN_FLOOR){
+
+            if (roomSlot > process.env.NUMBER_OF_ROOM_IN_FLOOR * process.env.NUMBER_OF_ROOM_IN_FLOOR) {
                 roomSlot = 0
                 slotCount++;
-                
-                if(slotCount > process.env.NUMBER_OF_SLOT - 1){
+
+                if (slotCount > process.env.NUMBER_OF_SLOT - 1) {
                     slotCount = 0
                     dayCount++;
                 }
             }
-            
-            
+
+
             const val = course[i];
             let roomCourse = Math.ceil(val.numOfStu / process.env.NUMBER_OF_STUDENT_IN_ROOM)
             fs.appendFileSync("test.txt", roomCourse + "\n");
             roomSlot += roomCourse
-            if(roomSlot <= process.env.NUMBER_OF_STUDENT_IN_ROOM* process.env.NUMBER_OF_ROOM_IN_FLOOR){
+            if (roomSlot <= process.env.NUMBER_OF_STUDENT_IN_ROOM * process.env.NUMBER_OF_ROOM_IN_FLOOR) {
                 for (let i = 0; i < roomCourse; i++) {
                     let data = val.id + ".." + daySlot.getDate() + ".." + slot
                     fs.appendFileSync("test.txt", data + "\n");
@@ -136,9 +136,9 @@ router.get('/', async (req, res) => {
             } else {
                 i--
             }
-            
+
         }
-        
+
     }
     res.json('hihi')
 })
diff --git a/routes/timeSlot.js b/routes/timeSlot.js
index 192bdb11..463c5fec 100644
--- a/routes/timeSlot.js
+++ b/routes/timeSlot.js
@@ -30,18 +30,18 @@ router.get('/getAll', async (req, res) => {
     //get All timeSlot
     try {
         const timeSlots = await TimeSlot.findAll();
-        if(!timeSlots){
+        if (!timeSlots) {
             res.json(NotFoundResponse());
-        }else{
+        } else {
             res.json(DataResponse(timeSlots));
         }
     } catch (error) {
         console.log(error);
         res.json(InternalErrResponse());
-    }  
+    }
 })
 
-router.get('/getMultipleId', async (req,res) => {
+router.get('/getMultipleId', async (req, res) => {
     //tìm theo id khi người dùng nhập dạng "id" = "1,2,3,4,5,6,7"
     const id = req.body.id.split(',');
     console.log(id);
@@ -49,7 +49,7 @@ router.get('/getMultipleId', async (req,res) => {
         const timeSlots = await TimeSlot.findAll({
             where: {
                 id: {
-                    [Op.or] : id
+                    [Op.or]: id
                 }
             }
         }
@@ -127,7 +127,7 @@ router.delete('/deleteAll', async (req, res) => {
 })
 
 
-router.put('/update', async (req, res) => {
+router.put('/', async (req, res) => {
     //update time slot theo id
     const id = parseInt(req.body.id)
     const timeSlotData = req.body;