Complete swap from express and aws to express and heroku due to the much smaller learning curve needed for a herkou build

controllers/msg.js

@@ -0,0 +1,85 @@
+const Msg = require('../models/msg'); //import msg model
+
+
+//GET all messages
+const getAllMsg = (req, res) => {
+    Msg.find({}, (err, data)=>{
+        if (err){
+            return res.json({Error: err});
+        }
+        return res.json(data);
+    })
+};
+
+//POST message
+const newMsg = (req, res) => {
+    //check if the id already exists in db
+    Msg.findOne({ id: req.body.id }, (err, data) => {
+
+        //if tea not in db, add it
+        if (!data) {
+            //create a new tea object using the Msg model and req.body
+            const newMsg = new Msg({
+                id:req.body.id,
+                message: req.body.message,
+                time: Date.now(),
+            })
+
+            // save this object to database
+            newMsg.save((err, data)=>{
+                if(err) return res.json({Error: err});
+                return res.json(data);
+            })
+        //if there's an error or the msg is in db, return an error message         
+        }else{
+            if(err) return res.json(`Something went wrong, please try again. ${err}`);
+            return res.json({message:"Msg already exists"});
+        }
+    })    
+};
+
+//DELETE all messages
+const deleteAllMsg = (req, res) => {
+    Msg.deleteMany({}, err => {
+        if(err) {
+          return res.json({message: "Deletion of all messages failed"});
+        }
+        return res.json({message: "Deletion of all messages successful"});
+    })
+};
+
+//GET message based on id
+const getOneMsg = (req, res) => {
+    let id = req.params.id; //get the msg id
+
+    //find the specific msg with that id
+    Msg.findOne({id:id}, (err, data) => {
+    if(err || !data) {
+        return res.json({message: "Message doesn't exist."});
+    }
+    else return res.json(data); //return the msg object if found
+    });
+};
+
+//DELETE message based on id
+const deleteOneMsg = (req, res) => {
+    let id = req.params.id; // get the id of msg to delete
+
+    Msg.deleteOne({id:id}, (err, data) => {
+    //if there's nothing to delete return a message
+    if( data.deletedCount == 0) return res.json({message: "Message doesn't exist."});
+    //else if there's an error, return the err message
+    else if (err) return res.json(`Something went wrong, please try again. ${err}`);
+    //else, return the success message
+    else return res.json({message: "Message deleted."});
+    });
+};
+
+//export controller functions
+module.exports = {
+	getAllMsg,
+	newMsg,
+	deleteAllMsg,
+	getOneMsg,
+	deleteOneMsg
+};