How to get all users from MongoDB? - node.js

Question

I'm trying to get all my users from MongoDB, I've readed all documentations, but nothing helps.. What I'm trying to do is set my back-end mainController and create a get request which helps me get all users in front, so I can display them in my page. I'm still learning how to work with MongoDB, so sorry for my awful question.
mainController:
const uid = require('uid-safe')
const bcrypt = require('bcrypt')
const UserSchema = require('../schemas/UserSchema');
const { db } = require('../schemas/UserSchema');
const { default: mongoose } = require('mongoose');
module.exports = {
register: async (req, res) => {
const { username, email, password, image, city, country, firstName, lastName, phone, gender, birth } = req.body;
const userExists = await UserSchema.findOne({ username });
if (userExists) {
return res.send({ error: true, message: 'User with this username exists', data: null });
}
const emailExists = await UserSchema.findOne({ email });
if (emailExists) {
return res.send({ error: true, message: 'User with this email exists', data: null });
}
const id = await uid(7);
const hashedPass = await bcrypt.hash(password, 3);
const user = new UserSchema({
secret: id,
username,
email,
password: hashedPass,
image,
city,
country,
firstName,
lastName,
phone,
gender,
birth
});
await user.save();
return res.send({ error: false, message: 'User successfully registrated!', data: null });
},
login: async (req, res) => {
const { username, password } = req.body;
const loginUser = await UserSchema.findOne({ username });
if (loginUser) {
const passMatch = bcrypt.compare(password, loginUser.password)
if (passMatch) {
return res.send({ error: false, message: `Welcome back ${username}!`, data: loginUser })
}
return res.send({ error: true, message: 'Invalid password', data: null });
};
return res.send({ error: true, message: 'Invalid username', data: null });
},
getSingleUser: async (req, res) => {
const { secret } = req.params;
const findUser = await UserSchema.findOne({ secret });
if (findUser) {
return res.send({ error: false, message: 'User found', data: findUser });
}
return res.send({ error: true, message: 'User not found', data: null });
},
updateUser: async (req, res) => {
try {
const updateduser = await User.updateOne({ secret: req.params.secret }, { $set: req.body });
res.status(200).json(updateduser);
} catch (error) {
res.status(400).json({ message: error.message });
}
}
};
mainRouter:
const express = require('express')
const { login, register, getSingleUser, authSession, usersApi } = require("../controller/mainController")
const { loginValidate, registerValidate } = require("../middleware/authValidator")
const mainRouter = express.Router()
mainRouter.post('/register', registerValidate, register);
mainRouter.post('/login', loginValidate, login);
mainRouter.get('/user/:secret', getSingleUser)
module.exports = mainRouter;
Thank you!

Answer 1

I think you can use the find function.
const uid = require('uid-safe')
const bcrypt = require('bcrypt')
const UserSchema = require('../schemas/UserSchema');
const { db } = require('../schemas/UserSchema');
const { default: mongoose } = require('mongoose');
module.exports = {
register: async (req, res) => {
const { username, email, password, image, city, country, firstName, lastName, phone, gender, birth } = req.body;
const userExists = await UserSchema.findOne({ username });
if (userExists) {
return res.send({ error: true, message: 'User with this username exists', data: null });
}
const emailExists = await UserSchema.findOne({ email });
if (emailExists) {
return res.send({ error: true, message: 'User with this email exists', data: null });
}
const id = await uid(7);
const hashedPass = await bcrypt.hash(password, 3);
const user = new UserSchema({
secret: id,
username,
email,
password: hashedPass,
image,
city,
country,
firstName,
lastName,
phone,
gender,
birth
});
await user.save();
return res.send({ error: false, message: 'User successfully registrated!', data: null });
},
login: async (req, res) => {
const { username, password } = req.body;
const loginUser = await UserSchema.findOne({ username });
if (loginUser) {
const passMatch = bcrypt.compare(password, loginUser.password)
if (passMatch) {
return res.send({ error: false, message: `Welcome back ${username}!`, data: loginUser })
}
return res.send({ error: true, message: 'Invalid password', data: null });
};
return res.send({ error: true, message: 'Invalid username', data: null });
},
getSingleUser: async (req, res) => {
const { secret } = req.params;
const findUser = await UserSchema.findOne({ secret });
if (findUser) {
return res.send({ error: false, message: 'User found', data: findUser });
}
return res.send({ error: true, message: 'User not found', data: null });
},
updateUser: async (req, res) => {
try {
const updateduser = await User.updateOne({ secret: req.params.secret }, { $set: req.body });
res.status(200).json(updateduser);
} catch (error) {
res.status(400).json({ message: error.message });
}
},
getAllUsers: async(req, res) => {
try {
const allUser = await User.find({});
res.status(200).json(allUser);
} catch (error) {
res.status(400).json({ message: error.message });
}
}
};
const express = require('express')
const { login, register, getSingleUser, authSession, usersApi, getAllUsers } = require("../controller/mainController")
const { loginValidate, registerValidate } = require("../middleware/authValidator")
const mainRouter = express.Router()
mainRouter.post('/register', registerValidate, register);
mainRouter.post('/login', loginValidate, login);
mainRouter.get('/user/all', getAllUsers);
mainRouter.get('/user/:secret', getSingleUser);
module.exports = mainRouter;