req.flash return content with brackets ['message']

[iwaduarte]

I'm having a problem with req.flash when I am try to set a flash message inside a function:
I am doing:

req.flash('info', 'Yep all good' );

but then when I am using console.log to display it:
console.log(req.flash('info'));

I get : [ 'Yep all good' ] with brackets.
I do not know what do to fix this. Can someone give me a help. Is that a bug?

[Manos Kounelakis]

I believe this due to req.flash returning an array of strings

[Renan Coelho]

i'm facing with the same issue. cannot get an object from flash() function. any helps?

[Renan Coelho]

without any help, i've made my own script to work with. please see my gist if you are interested https://gist.github.com/sayhicoelho/f3f8009d2d380dc28765c13c65340c0e

[iwaduarte]

I have pretty much abandoned the use of req.flash(). It is buggy and lacks of the documentation to perform this simple task as we can see. I did not get any response either. Instead I highly recommend you to work with res.locals. They do pretty much the same thing if setup properly.

[lutzklai]

This is the expected behavior of req.flash. So if you wanted you could push multiple messages to the same key

req.flash('info', 'message 1');
req.flash('info', 'message 2');

Then in your view you could iterate over the array and display all the messages.

---

In my use case I knew I would only pass a single error object to flash

req.flash('errors': errorObject);

So now I can fetch it and select the first index

const errors = req.flash('errors');
res.locals.errors = errors.length > 0 ? errors[0] : {};

[iwaduarte]

I have misunderstood this. Thanks!!!

[UgbeGodwinIkpe]

I'm have issues in returning with req.flash() too.
I'm trying to return a string message to the view instead it's flashing 1.
This is the short code:
return res.render('index', {
error_msg: req.flash('error_msg', 'Not found'),
success_msg: ''
})