How do i use mongodb with electron?

This is an electron app for MongoDB management, you can check the code as an example on how to use mongodb and electron.

https://github.com/officert/mongotron

Basically you can use mongodb as you would normally use in node.js in the Main process and then communicate with Renderer process through the ipc module.

For example:

Renderer process

<html>
  <head></head>
  <body>
    <script>
    const ipc = require('electron').ipcRenderer;
    const informationBtn = document.getElementById('information-dialog')

    informationBtn.addEventListener('click', function (event) {
      ipc.send('create-user')
    })
    </script>
  </body>
<html>

Main process

const ipc = require('electron').ipcMain
const mongo = require('some-mongo-module')

ipc.on('create-user', function (event) {
  /* MONGODB CODE */
})

I would recommend you to use the get started app that you can find in http://electron.atom.io/