Experiencing an issue with the .save() function in MongoDB - node.js

Question

I am using Node.js, Express, and MongoDB for a project and in MongoDB, .save() is not working.
index.js file code:
const express = require("express");
const app = express();
const dotenv = require("dotenv");
const helmet = require("helmet");
const morgan = require("morgan");
const mongoose = require("mongoose");
//middleware;
app.use(express.json()); //for json files;
app.use(helmet());
app.use(morgan("common"));
//routing paths;
const authUser = require("./routes/auth");
// for secrets keys;
dotenv.config();
//Connecting to Mongoose;
mongoose.connect(process.env.MONGO_PATH, {
userNewUrlParser: true, useUnifiedTopology: true
}, () => {
console.log("Connected to MongoDb");
}
)
app.use("/api/auth", authUser);
app.listen(9000, () => {
console.log("Server is Running...");
}
)
Model file name User.js:
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const UserSchema = new Schema({
username: {
type: String,
require: true,
},
password: {
type: String,
require: true,
}
});
const User= mongoose.model("User", UserSchema);
module.exports = User;
auth.js file
const router = require("express").Router();
const User = require("../models/User");
const bcrypt = require("bcrypt");
//for register;
router.get("/register", async (req, res) => {
try {
const newuser = new User({
username: "herovinay",
password: "herovinay"
});
newuser.save((err)=> {
if (err) {
res.status(500).json({ msg: "internal error is here"});
}
else {
res.status(200).json({ msg: "Data saved successfully..." });
}
});
} catch (err) {
res.send("second error is here");
}
})
module.exports = router;
When accessing localhost:9000/api/auth/register, the output is msg: "internal error is here".
Screenshot of output:
Every time I tried to hit that request, the same error came over and over again.
I tried everything and was unable to save my data to the MongoDB cluster.

Answer 1

Change the get method to post. to create new data in the server the post method is used. and also add the await keyword before the newuser.save(),
here is a example.
const router = require("express").Router();
const User = require("../models/User");
const bcrypt = require("bcrypt");
//for register;
router.post("/register", async (req, res) => {
try {
const newuser = new User({
username: "herovinay",
password: "herovinay"
});
await newuser.save((err)=> {
if (err) {
res.status(500).json({ msg: "internal error is here"});
}
else {
res.status(200).json({ msg: "Data saved successfully..." });
}
});
} catch (err) {
res.send("second error is here");
}
})
module.exports = router;