Express POST events

Our Express application currently only renders an index page using the Handlebars template engine. Let's now extend our application to render a login form, and then process the results when a user completes this form, and posts it back to our application.

In order to do this, we will need a login route handler that will accept both HTML GET actions, as well as HTML POST actions. Our application will need to be modified in a few places. Firstly, we will need a handler for a GET request that will use an associated login.hbs view template to render the login form. Secondly, we will need another handler to process the POST request once the user has filled in the form and hit the submit button. This POST handler will need to ...

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