Express.js - routes wont work if they have multiple / - 404 error - express

Question

GET /user/me - sends back 404 (resource not found)
If I change the second '/' to a '_' (i.e GET users_me), then it works.
I have two questions:
1) How to fix it so I can use 'GET /user/me'?
2) It works with an underscore so is there any advantage to using the slash vs. the underscore?
///////////Code
require('./config/config');
const _ = require('lodash');
const express = require('express');
const bodyParser = require('body-parser');
const {ObjectID} = require('mongodb');
//const multer = require('multer');
//const router = express.Router();
var renameKeys = require('rename-keys');
var {mongoose} = require('./db/mongoose');
//var {Todo} = require('./models/todo');
var {User} = require('./models/user');
var {authenticate} = require('./middleware/authenticate');
var app = express();
const port = process.env.PORT;
app.use(bodyParser.json());
// GET users/me
app.get('/users_me', authenticate, (req, res) => {
res.send(req.user);
});
// POST /users -- signing up a new user [how will this handle logging in instead of signing up?]
app.post('/users', (req, res) => {
var body = _.pick(req.body, ['email', 'password']);
var user = new User(body);
user.save().then(() => {
return user.generateAuthToken();
}).then((token) => {
res.header('x-auth', token).send(user);
}).catch((e) => {
res.status(400).send(e);
})
});
app.listen(port, () => {
console.log(`Started up at port ${port}`);
});
module.exports = {app};

Answer 1

First question:
Just change
app.get('/users_me', authenticate, (req, res) => {
res.send(req.user);
});
to
app.get('/users/:me', authenticate, (req, res) => {
res.send(req.user);
});
Then make a Get request:
somehost:someport/users/myusername
Second question:
Routing works just like a file-system:
/path/subpath/
So you can't use an underscore to substitute a slash '/'
INFO: You could pass the id or name (depends on your logic) of the user in the URL of your GET-request:
GET request (in this case to localhost with port 3000):
localhost:3000/users/getuserbyid/20
route:
router.get('/getuserbyid/:id', .....
Hope that helps ;)