Lecture 259:- Sending Data To The Server

To send data to the server, we can use the HTTP POST method. The HTTP POST method sends data to the server as a request message body. This method is used when we want to create or update a resource on the server.

To send data to the server using the POST method, we need to do the following:

1. Create a form in HTML that will contain the data we want to send to the server.
2. Set the form's method attribute to "POST" to indicate that we want to use the POST method to send the data.
3. Set the form's action attribute to the URL of the server endpoint that will handle the POST request.
4. Add input elements to the form that will contain the data we want to send to the server. Each input element should have a name attribute that corresponds to the name of the data field on the server.
5. Add a submit button to the form that the user can click to submit the form.

When the user submits the form, the browser will send an HTTP POST request to the server with the data contained in the form's input elements as the request message body. The server will then process the data and return a response to the browser.

On the server side, we can use a web framework like Express.js to handle the HTTP POST request and extract the data from the request message body. We can then use the data to create or update a resource on the server, such as adding a new contact to a contact list.