14.txt

// Submit

You have recently learned about how forms are sent to web servers and the difference between Get and Post. In this reading, 
you will build on this knowledge by learning about Submit. 



# Action and method 
Form submissions are an essential part of the world wide web. Nearly every website uses forms, from buying items online to 
ordering food for delivery. When you click the login button on a website, it sends your username and password to a web server to 
log you into your account. 

As you know by now, you add a form to your web page using the form tag. 
<form> 
</form> 


But how the form is submitted is determined by two essential attributes: action and method. 
The action attribute specifies to which web address the form must be sent. This is address is location of server-side code that 
will process the request.

<form action="/login"> 
</form> 


It is important to note that action can be a full URL address such as https://meta.com, an absolute path such as /login, or a 
relative path such as login. 
The absolute path, which starts with a forward slash, will use the base address of the current website, such as https://meta.com 
and combine it with the absolute path. For example, if /login is the absolute path, the form will be submitted to 
https://meta.com/login. If the address is https://meta.com/company-info/ and /login is the absolute path, the submission address 
will still be https://meta.com/login.

Similarly, a relative path will combine the current web address with a relative path. For example, if the web browser is currently 
on the web page https://meta.com/company-info/, and the relative path is set to login, the form will be submitted to 
https://meta.com/company-info/login. 
The method attribute specifies which HTTP method is used to submit the form; GET or POST. 

<form method="get"> 
</form> 


<form method="post">
</form> 

The form will default to the HTTP GET method when the method attribute is not provided. 
As you may already know, when the form is submitted using the HTTP GET method, the data in the form's fields are encoded in the 
URL. And when the form is submitted using the HTTP POST method, the data is sent as part of the HTTP request body. 
When the web server receives the request, it processes the data and sends back an HTTP response. The response indicates the 
result of the submission, which can be successful or fail due to invalid or incorrect data.