Express.Js having same param name but not passed

Question

So I have an issue with Express.Js currently. When I goto /article/14 it returns with these as the parameter.

{ artId: '14' }
{ artId: 'img' }

However, I'm not sure where it gets the img part from or how the value is there twice. However, if I go to a different Id article it works fine.

This is the full code

app.get('/article/:artId', async function (req, res) {
    let artId = req.params.artId;
    getDiscordUserInfo(req, res, function(disData) {
        connection.query(`SELECT * FROM articles WHERE id = ${artId}`, (err, artResults) => {
            if(artResults[0]) {
                connection.query(`SELECT * FROM articles WHERE deleted = 0 AND catId = ${artResults[0].catId}`, (err, catArtsResults) => {
                    connection.query(`SELECT * FROM categories WHERE id = ${artResults[0].catId}`, (err, resultsCat) => {
                        res.render('article', {discordInfo: disData, siteInfo: config['siteInformation'], art: artResults[0], catArts: catArtsResults, cat: resultsCat[0], mdConvert: md});
                    });
                });
            } else {
                res.redirect('/'); 
            }
        });
    });
});

It also seems to still load the page and then crash because of img .

Answer 1

Seems to be resolved. To make the articles I use a markdown converter and the image I placed in the body of the page seems to be the cause. I didn't have the link yet so I used img as a placeholder in the code which made this the result;

Not sure how this in the body would be a cause but somehow was.

Answer 2

aha,,,

app.get('/article/:artId')

:artId is dynamic params. so if you have the same route maybe in your case

app.get('/article/:artId') // route 1
app.get('/article/img') // route 2

simple solution just add conditon before query to database

if(artId !== "img")