Lets build a form with but before, lets see where wen can use auth forms for.
Authentication forms are crucial components of web and application security, serving as the primary method for verifying the identity of users. These forms can be implemented in various ways, catering to different security needs, user experiences, and application contexts. Here’s a list of how authentication forms can be used across different scenarios:
This is how the form will look like
<div
x-data="{ loginEmail: '', loginPassword: '', passwordPattern: /^(?=.*[A-Z])(?=.*\W).+$/, showPassword: false }">
<form
x-on:submit.prevent="login">
<div >
<label
for="login_email"
>Email</label
>
<input
type="email"
id="login_email"
x-model="loginEmail"
placeholder="Enter your email"
required
/>
<p
x-show="!loginEmail"
class="text-red-500 ">
Email is required
</p>
</div>
<div>
<label
for="login_password"
>Password</label
>
<div class="relative">
<input
:type="showPassword ? 'text' : 'password'"
id="login_password"
x-model="loginPassword"
placeholder="Enter your password"
required
/>
<span
x-text="showPassword ? 'Hide' : 'Show'"
@click="showPassword = !showPassword"
>Show</span
>
</div>
<p class="...">
Password must contain at least one capital letter and a special
character.
</p>
<p
x-show="loginPassword && !passwordPattern.test(loginPassword)"
class="text-red-500...">
Password does not meet requirements
</p>
</div>
<div class="mt-4">
<button
type="submit"
>Login</button
>
</div>
</form>
</div>
This part is the data that will be used in the form, it will contain the email and password of the user and a pattern that will be used to validate the password.
showPassword
variable will be used to show or hide the password input field.passwordPattern
variable will be used to validate the password.loginEmail
and loginPassword
variables will be used to store the email and password of the user.<div x-data="{ loginEmail: '', loginPassword: '', passwordPattern: /^(?=.*[A-Z])(?=.*\W).+$/, showPassword: false }"></div>
This part is the form itself, we will use the x-on:submit.prevent="login"
attribute to prevent the form from submitting when the user clicks the submit button.
<form x-on:submit.prevent="login">
<!-- The form content -->
</form>
On the email input x-model="loginEmail"
attribute will bind the value of the input field to the loginEmail
variable and the x-show="!loginEmail"
attribute will show the error message if the email is not filled in.
<div>
<label for="login_email">Email</label>
<input
type="email"
id="login_email"
x-model="loginEmail"
placeholder="Enter your email"
required
/>
<p
x-show="!loginEmail"
class="text-red-500">
Email is required
</p>
</div>
In the password input we will find:
:type="showPassword ? 'text' : 'password'"
attribute will show or hide the password input field.x-model="loginPassword"
attribute will bind the value of the input field to the loginPassword
variable. x-text="showPassword ? 'Hide' : 'Show'"
attribute will show or hide the show/hide button when the user clicks it.@click="showPassword = !showPassword"
attribute will toggle the showPassword
variable when the user clicks the show/hide button.x-show="loginPassword && !passwordPattern.test(loginPassword)"
attribute will show the error message if the password is not filled in or does not meet the requirements. This message will be hidden if the password is filled in and meets the requirements.p
saying ” Password must contain at least one capital letter, a special character, and be 1-8 characters long” is always visible to avoid confusion, is part of good UX<div>
<label for="login_password">Password</label>
<div>
<input
:type="showPassword ? 'text' : 'password'"
id="login_password"
x-model="loginPassword"
placeholder="Enter your password"
required
/>
<span
x-text="showPassword ? 'Hide' : 'Show'"
@click="showPassword = !showPassword"
>Show</span
>
</div>
<p class="...">
Password must contain at least one capital letter and a special character.
</p>
<p
x-show="loginPassword && !passwordPattern.test(loginPassword)"
class="text-red-500...">
Password does not meet requirements
</p>
</div>
This button will trigger the login
function when it is clicked.
<button type="submit" class="...">Login</button>
In this tutorial, we learned how to create a login form using Tailwind CSS and Alpine.js. We covered topics such as creating a login form, handling form submissions, validating user input, and displaying error messages using Alpine.js. We also explored how to use Tailwind CSS to style the form and add animations to the login button. By following this tutorial, you can create a secure and user-friendly login form using Tailwind CSS and Alpine.js.
/Michael Andreuzza
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