created: Like post controller

backend/controller/likeController.js

@@ -0,0 +1,43 @@
+const { Like, TargetType_ENUM } = require("../models/Like");
+const Post = require("../models/Post");
+const mongoose = require("mongoose");
+
+/**
+ * @desc user can like the post of the other developers
+ * @route GET /posts/:id/like
+ */
+async function likePost(req, res) {
+  try {
+    const PostId = req.params.id;
+    if (!PostId)
+      return res.status(400).json({ msg: "Post can't be undefined" });
+    if (!mongoose.Types.ObjectId.isValid(PostId))
+      return res.status(400).json({ msg: "Post Id is not Valid" });
+    const postExists = Post.findById(PostId);
+    if (!postExists)
+      return res.status(404).json({ msg: "Post does not Exists" });
+    const likeExists = Like.findOne({
+      targetId: new mongoose.Types.ObjectId(PostId),
+    }).select("_id");
+    if (!likeExists) {
+      const likedPost = await Like.create({
+        targetType: TargetType_ENUM.POST,
+        count: 1,
+        targetId: PostId,
+      });
+      console.log(likedPost);
+    }
+    else{
+        const likeUpdated = await Like.updateOne({ targetId: PostId},{ $inc: {count: 1}});
+        console.log(likeUpdated);
+    }
+    return res.status(200).json({ msg: "Post Liked Successfully" });
+  } catch (err) {
+    console.log(err.stack);
+    return res.status(500).json({ msg: "Internal Server Error" });
+  }
+}
+
+module.exports = {
+  likePost,
+};

backend/models/Like.js

@@ -10,6 +10,9 @@ const LikeSchema = mongoose.Schema({
         type: String,
         enum: Object.values(TargetType_ENUM)
     },
+    count: {
+        type: Number
+    },
     targetId: {
         type: mongoose.Schema.Types.ObjectId,
         refPath: 'targetTypeRef'
@@ -23,6 +26,9 @@ const LikeSchema = mongoose.Schema({
     strict: true
 });
 
-const like = mongoose.model('Like', LikeSchema);
+const Like = mongoose.model('Like', LikeSchema);
 
-module.exports = like;
+module.exports = {
+    Like, 
+    TargetType_ENUM
+};

backend/routes/user-route.js

@@ -4,16 +4,19 @@
 const {generateToken, verifyToken} = require('../middleware/tokenVerification.js');
 const { createPost, showPost, showAllPost } = require('../controller/postController.js');
 const { sendFollow } = require('../controller/followController.js');
+const { likePost } = require('../controller/likeController.js');
 const router = express.Router();
+const app = express();
 
 router.use(express.json());
 router.post('/signup', isUserAuthenticated, generateToken, createUser);
 router.post('/login', generateToken, loginUser);
-router.get('/:id', findUser);
+router.get('/:id', verifyToken, findUser);
 router.post('/post/create', verifyToken, createPost);
 router.get('/post/:id', verifyToken, showPost);
 router.post('/posts', verifyToken, showAllPost); // this should work with GET request but it is not working, instead it returing a 404 on send request in GET format
 router.post('/people', verifyToken, getAllUser);
 router.post('/follow/:id', verifyToken, sendFollow);
+router.put('/posts/:id/like', verifyToken, likePost);
 
 module.exports = router;