The POST Method

The POST request is generally used to update or create resources at the server, as well as when you want to send some data to be processed by the server. Especially in the context of REST, it is more accurate to consider POST as a process rather than Create.

Data is passed in the body of the request. This has the following implications:

• You can send relatively sensitive information to the server, as the data is embedded in the body of the request and it will not be visible to the end user in the URL. However, note that your data is never truly secure unless you use HTTPS. Even if you send the data within the request body, without HTTPS, it is very easy for someone in the middle to eavesdrop on your data.
• As the data is not sent through the request URL, it does not take up space in the URL, and it therefore has no issues with the URL length limitations:

As we have covered the fundamentals, we can now proceed to discuss ASP.NET.