Node.JS Help me

[harryd123]

I'm hoping somebody can put me out of my misery. I'm following a tutorial to build a blogging website but have run into trouble when trying to post to my database.

link:

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I've copied the code line form his tutorial mostly, and have mongoDB hooked up correctly (I think). Yet when I press save, nothing is posted, nothing shows up in the database thats been created, and the form isn't redirected. I think because an object isn't been created, it can't find an ID and is redirecting me to the same page.

In my implementation I actually modified the code quite a bit, but when running into this issue I decided to recreate his project line by line - only to get the same error. Feels like it has to be something to do with how my DB is configured?

Please can someone help? Thanks!

Routes file is here:

const express = require('express')
const Blog = require('./../models/blog')
const router = express.Router()

router.get('/new', (req, res) => {
  res.render('blogs/new', { blog: new Blog() })
})

router.get('/edit/:id', async (req, res) => {
  const blog = await Blog.findById(req.params.id)
  res.render('blogs/edit', { blog: blog })
})

router.get('/:slug', async (req, res) => {
  const blog = await Blog.findOne({ slug: req.params.slug })
  if (blog == null) res.redirect('/')
  res.render('blogs/show', { blog: blog })
})

router.post('/', async (req, res, next) => {
  req.blog = new Blog()
  next()
}, saveblogAndRedirect('show'))

router.put('/:id', async (req, res, next) => {
  req.blog = await Blog.findById(req.params.id)
  next()
}, saveblogAndRedirect('edit'))

router.delete('/:id', async (req, res) => {
  await Blog.findByIdAndDelete(req.params.id)
  res.redirect('/')
})

function saveblogAndRedirect(path) {
  return async (req, res) => {
    let blog = req.blog
    blog.title = req.body.title
    blog.description = req.body.description
    blog.markdown = req.body.markdown
    try {
      blog = await blog.save()
      res.redirect(`/blogs/${blog.slug}`)
    } catch (e) {
      res.render(`blogs/${path}`, { blog: blog })
    }
  }
}

module.exports = router