posts.js

router.get('/getOne', async(req, res) =>{
    try {
        if(!req.query.id){
            throw {message: 'add the post id in the request'}
        }
        const id = req.query.id;
        //be carful to add the the tags field name in the model
        //and not the Model Name or ref
        const post = await Post.findById(id).populate('tags');
        res.status(200).json(post);
    } catch (error) {
        res.status(400).json({error: error.message})
    }

});