finish api about post board

 {
   "scripts": {
     "server": "cd server && nodemon server",
-    "client": "cd client && npm start --port",
+    "client": "cd client && export PORT=8080 && set PORT=8080 && npm start --port",
     "start": "concurrently --kill-others-on-fail \"npm run server\" \"npm run client\""
   },
   "dependencies": {

@@ -29,7 +29,7 @@ const postModel = mongoose.model('post', post);
 
 function getCurrentDate(originDate) {
   var date;
-  if(originDate == null) date = new Date();
+  if (originDate == null) date = new Date();
   else date = new Date(originDate);
   var year = date.getFullYear().toString();
 
@@ -39,72 +39,141 @@ function getCurrentDate(originDate) {
   var day = date.getDate();
   day = day < 10 ? '0' + day.toString() : day.toString();
 
-  return year + '-'+ month + '-'+ day ;
+  return year + '-' + month + '-' + day;
 }
 
-router.get('/api/getList', async(req, res) => {
-  const today = getCurrentDate();
-  var testDayPostList = await dayPostListModel.findOne({ date: today });
-  if (testDayPostList == null) testDayPostList = new dayPostListModel({ date: today, idArray: [] });
-  res.send(testDayPostList.idArray);
-});
+function arrayEquals(a, b) {
+  return Array.isArray(a) &&
+      Array.isArray(b) &&
+      a.length === b.length &&
+      a.every((val, index) => val === b[index]);
+}
 
-router.get('/api/getList/:date', async(req, res) => {
-  const today = getCurrentDate(req.params.date);
-  var testDayPostList = await dayPostListModel.findOne({ date: today });
-  if (testDayPostList == null) testDayPostList = new dayPostListModel({ date: today, idArray: [] });
-  res.send(testDayPostList.idArray);
+router.get('/api/getList', async (req, res) => {                                                                 // 오늘 게시물들의 아이디 표시
+  try {
+    const today = getCurrentDate();
+    var testDayPostList = await dayPostListModel.findOne({ date: today });
+    if (testDayPostList == null) testDayPostList = new dayPostListModel({ date: today, idArray: [] });
+    res.send(testDayPostList.idArray);
+  }
+  catch (err) {
+    res.send(err.message);
+  }
 });
 
-router.get('/api/get', async(req, res) => {
-  const idArray = req.body.idArray;
-  var resultArray = [];
-  for (const id of idArray){
-    const onePost = await postModel.findById(id);
-    var tempJSON = {};
-    tempJSON.id = onePost.id;
-    tempJSON.title = onePost.title;
-    tempJSON.content = onePost.content;
-    tempJSON.content = tempJSON.content.replace(/(?:\r\n|\r|\n)/g, '');
-    const sliceLength = 10;
-    if(tempJSON.content.length > sliceLength) tempJSON.content = tempJSON.content.slice(0,sliceLength) + "...";
-    resultArray.push(tempJSON);
-  }
-  res.send(resultArray);
+router.get('/api/getList/:date', async (req, res) => {                                                           // 특정 날자의 게시물들의 아이디 표시
+  try {
+    const today = getCurrentDate(req.params.date);
+    var testDayPostList = await dayPostListModel.findOne({ date: today });
+    if (testDayPostList == null) testDayPostList = new dayPostListModel({ date: today, idArray: [] });
+    res.send(testDayPostList.idArray);
+  }
+  catch (err) {
+    res.send(err.message);
+  }
 });
 
-router.get('/api/get/:id', async(req, res) => {
-  const currentPost = await postModel.findById(req.params.id);
-  res.send({ title: currentPost.title, content: currentPost.content });
+router.get('/api/get', async (req, res) => {                                                                     // 특정 id(여러개)의 게시물 내용 요약 불러오기
+  try {
+    const idArray = req.body.idArray;
+    var resultArray = [];
+    for (const id of idArray) {
+      const onePost = await postModel.findById(id);
+      var tempJSON = {};
+      tempJSON.id = onePost.id;
+      tempJSON.title = onePost.title;
+      tempJSON.content = onePost.content;
+      tempJSON.content = tempJSON.content.replace(/(?:\r\n|\r|\n)/g, '');
+      const sliceLength = 10;
+      if (tempJSON.content.length > sliceLength) tempJSON.content = tempJSON.content.slice(0, sliceLength) + "...";
+      resultArray.push(tempJSON);
+    }
+    res.send(resultArray);
+  }
+  catch (err) {
+    res.send(err.message);
+  }
 });
 
-router.post('/api/isPassEqual', async(req, res) => {
-  const currentPost = await postModel.findById(req.body.id);
-  if (currentPost.password == req.body.password) res.send("success");
-  else res.send("failed");
+router.get('/api/get/:id', async (req, res) => {                                                                 // 특정 id의 게시물 불러오기
+  try {
+    const currentPost = await postModel.findById(req.params.id);
+    res.send({ title: currentPost.title, content: currentPost.content });
+  }
+  catch (err) {
+    res.send(err.message);
+  }
 });
 
-router.post('/api/postSave', async (req, res) => {
-  var isFirst = false;
-  const today = getCurrentDate();
+router.post('/api/isPassEqual', async (req, res) => {                                                            // 암호가 같으면 success, 아니면 failed
+  try {
+    const currentPost = await postModel.findById(req.body.id);
+    if (currentPost.password == req.body.password) res.send("success");
+    else res.send("failed");
+  }
+  catch (err) {
+    res.send("failed");
+  }
+});
 
-  var testDayPostList = await dayPostListModel.findOne({ date: today });
-  if (testDayPostList == null) {
-    testDayPostList = new dayPostListModel({ date: today, idArray: [] });
-    isFirst = true;
+router.post('/api/postSave', async (req, res) => {                                                              // 오늘 게시물 작성
+  try {
+    var isFirst = false;
+    const today = getCurrentDate();
+
+    var testDayPostList = await dayPostListModel.findOne({ date: today });
+    if (testDayPostList == null) {
+      testDayPostList = new dayPostListModel({ date: today, idArray: [] });
+      isFirst = true;
+    }
+    var postListArr = testDayPostList.idArray;
+    var newPost = new postModel({ date: today, title: req.body.title, content: req.body.content, password: req.body.password });
+    var newPostData = await newPost.save();
+    postListArr.push(newPostData._id.toString());
+
+    if (isFirst) await testDayPostList.save();
+    else await dayPostListModel.updateOne({ date: today }, { idArray: postListArr });
+
+    res.send("success");
   }
-  var postListArr = testDayPostList.idArray;
-  var newPost = new postModel({ date: today, title: req.body.title, content: req.body.content, password: req.body.password });
-  var newPostData = await newPost.save();
-  postListArr.push(newPostData._id.toString());
+  catch (err) {
+    res.send(err.message);
+  }
+});
 
-  if (isFirst) await testDayPostList.save();
-  else await dayPostListModel.updateOne({ date: today }, { idArray: postListArr });
+router.put('/api/edit/:id', async (req, res) => {                                                              // 게시물 수정
+  try {
+    const id = req.params.id;
+    const title = req.body.title;
+    const content = req.body.content;
+    await postModel.findByIdAndUpdate(id, { title: title, content: content });
+    res.send("success");
+  }
+  catch (err) {
+    res.send(err.message);
+  }
+});
 
-  res.send(newPostData);
+router.delete('/api/delete/:id', async (req, res) => {                                                          // 게시물 삭제
+  try {
+    const id = req.params.id;
+    const list = await dayPostListModel.find();
+    for (const dayList of list) {
+      var newArray = dayList.idArray.filter((data)=>{return data != id;})
+      if(!arrayEquals(dayList.idArray, newArray)){
+        await dayPostListModel.findByIdAndUpdate(dayList._id.toString(), {idArray: newArray});
+      }
+    }
+    await postModel.findByIdAndDelete(id);
+    res.send("success");
+  }
+  catch (err) {
+    res.send(err.message);
+  }
 });
 
-// 게시물 저장에 성공 실패 메시지만 표시, 게시물 수정, 삭제 추가예정 ---------------------------------------------------------------------------------------------------------------------------------------
+// 대기시간 관련 디비 수정 부분 추가 ----------------------------------------------------------------------------------------------------------------------------------------------------------------
+// 학식 일주일치 불러오는 부분 추가 -----------------------------------------------------------------------------------------------------------------------------------------------------------------
 
 // router.get('/api/testSave', async (req, res) => {
 //   var isFirst = false;