Hi everything works fine, but is it possible to limit articles to specific users only... Example user1 registers and adds article, user2 registers also but he can delete user1 article... can this be limited, for example user1 has access to own articles only..

I forked the main branch; ran the first command npm install and it installed the necessary modules;

when I ran the next command npm start this is the error log I received in the terminal; I visited StackOverflow looking for answers to no avail.

Server started on port 3000...
D:\Github Repos\Demosignin\node_modules\mongoose\lib\connection.js:680
    throw new MongooseError('The `uri` parameter to `openUri()` must be a ' +
          ^

MongooseError: The `uri` parameter to `openUri()` must be a string, got "undefined". Make sure the first parameter to `mongoose.connect()` or `mongoose.createConnection()` is a string.
    at Connection.openUri (D:\Github Repos\Demosignin\node_modules\mongoose\lib\connection.js:680:11)
    at D:\Github Repos\Demosignin\node_modules\mongoose\lib\index.js:345:10
    at D:\Github Repos\Demosignin\node_modules\mongoose\lib\helpers\promiseOrCallback.js:31:5
/modules/cjs/loader:1174:10)
    at Module.load (node:internal/modules/cjs/loader:998:32)
    at Module._load (node:internal/modules/cjs/loader:839:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:17:47

StackOverflow question visited is here

This brought me back to square one.
I need help to solve this error log. @bradtraversy @zubair-saif @DominikWronski

As you click on Article one it doesn't open the article and it's because it's not finding the article by ID, could you please how to fix it?

Error parsing command line: unrecognised option '--rest'
how cansolve this error

There would be a problem that multiple users share the same username, but we're able to login with the one who first registered. Is there any ways to prevent it happen like what we did to validate those required inputs to be not empty?

Getting the following error after changing the 'edit_article.pug' file:

Cannot read property '_id' of null

My code is:

extends layout

block content
h1 #{title}
form(method='POST', action='/articles/edit/'+article._id)
#form-group
label Title:
input.form-control(name='title', type='text', value=article.title)
#form-group
label Author:
input.form-control(name='author', type='text', value=article.author)
#form-group
label Body:
textarea.form-control(name='body') article.body
input.btn.btn-primary(type='submit',value='Submit')

.
.
.
 let article = new Article();
    article.title = req.body.title;
    article.author = req.user._id;
    article.body = req.body.body;
.
.
.

Here in router.post('/add',....

I get the error of "TypeError: Cannot read property '_id' of undefined".

But I can correctly login with user.

How to solve this?

Hi, Brad! Thanks for much, the best video tutorial. Your videos me helps on dissertation!!!
Please, You can make a lesson, on how to upload a picture and display it on a browser? 🙌🏻👏🏻

When i tried to include the Express validator middleware, nodemon gives me an error which says 'expressValidator is not a function"

Hello,
my english is not that good, use Translate ;)
I came to you via Youtube and now here to my problem.
Edit Article => input Author = UserID from MongoDB
Change "input Author" and call Artilel, breaks the script and the server :(
How can you catch that ???

LG
Volker