Trying to get variable from http://localhost:3000/categories/subcategories?category_id=13 but req.query returns empty result.
app.get('/subcategories', (req, res) => {
let category_id = req.query.category_id
console.log(req.query)
db.query('SELECT subcategory_name FROM subcategories WHERE category_id=(?)',
[category_id],
(err, result) =>{
res.send({category_id})
});
})
Is this possibly a problem with the way I've set up my server?
See how you are passing the data , directly entering the data or from another URL you are passing the data. Ensuring you are not sending data via req.body. Ref :
or check res.send({category_id}) . Try printing res.send({"category_id": category_id}) . or see console.log(JSON.stringify(req.query))
Or Extract Query Parameters Without Express
const url = require('url');
const querystring = require('querystring');
let rawUrl = 'https://stackabuse.com/?page=2&limit=3';
let parsedUrl = url.parse(rawUrl);
let parsedQs = querystring.parse(parsedUrl.query);
https://stackabuse.com/get-query-strings-and-parameters-in-express-js/