In my Express application, I have a route that sends a GET request to the 'challenges' collection in MongoDB. This route is designed to find a specific challenge by its section number and challenge number.
Here is the code snippet for this functionality:
// @route GET api/challenge?section=_&challenge=_
// @description Get challenge by section number and challenge number
// @access Private
router.get('/', auth, async (req, res) => {
try {
const challenge = await Challenge.find({
section_no: req.query.section,
challenge_no : req.query.challenge,
});
if (!challenge) {
return res.status(400).json({ msg: 'Challenge not found' });
}
return res.json(challenge);
} catch (err) {
console.error(err.message);
res.status(500).send('Server Error');
}
});
This code works perfectly when tested on Postman. When providing both query parameters 'section' & 'challenge', it successfully retrieves the desired challenge data.
However, my question now is how can I enhance this code so that I can optionally query ONLY the section OR BOTH the section & challenge. For example, if I were to make a request like:
api/challenge?section=1
It should return all challenges in section 1.
But at the same time, I still want to be able to fetch a specific challenge by using the query:
api/challenge?section=1&challenge=1
This should return data on the first challenge in section 1.
Thank you in advance for any help provided!