So I wanted to create a website that would let a user login. It’s supposed to be super simple. Just a white background with a username input box and a login button. No password.

What language(s) would be best to use?

Can I use my PC for a server for the testing stages?

I would have to create an API so I could talk with the server?

Would it go like 

User enters username and presses login and the API check the server if the usename exists and if it does then it goes to his/her page? 

Another question that popped into mind – How would I store info like usernames? Would I be able to store them in an exel file and read them from there? Would it be different if i did it over a server or locally on my PC?

Also here is a snippet of code that shows kinda what I want but I want the UserName stored somewhere else and not in the code. It’s HTML and JavaScript. I’nm not to sure about it though as i got it online and just modified it to my liking.

<form>

    <input type="text" placeholder="Username" id="text1" /><br />
    <input type="button" value="Login"  onclick="javascript:validate()" />

</form>
<script type="text/javascript">

function validate()
{
    if(document.getElementById("text1").value == "workshop")
    {
        alert( "validation succeeded" );
    }
    else
    {
        alert( "validation failed" );
    }
}
</script>

This is one of my other posts about this topic. 

https://forums.coronalabs.com/topic/65320-how-would-i-let-users-login-to-my-app/#entry337731

Thanks for any help!