The difference between the GET and POST methods of HTTP requests

The difference between the GET and POST methods of HTTP requests

In the request-response between the client and the server, the two most commonly used methods are: GET and POST.

• GET-Requests data from the specified resource.
• POST-submits the data to be processed to the specified resource

Get method

Note that the query string (name/value pair) is sent in the URL of the GET request:

/test/demo_form.asp?name1=value1&name2=value2

• Requests can be cached
• Request remains in browser history
• Requests can be bookmark-Favorites
• The request should not be used when processing sensitive data
• Request has a length limit
• Requests should only be used to retrieve data

Post method

Note that the query string (name/value pair) is sent in the HTTP message body of the POST request:

POST /test/demo_form.asp HTTP/1.1Host: w3schools.comname1=value1&name2=value2

Compare GET to POST

Method	GET	POST
Cache	can be cached	Cannot be cached
Encoding type	application/x-www-form-urlencoded	Application/x-www-form-urlencoded or Multipart/form-data. Use multiple encodings for binary data.
Limits on the length of data	Yes. The GET method adds data to the URL when the data is sent, and the length of the URL is restricted (the maximum URL length is 2048 characters)	Unlimited.
Restrictions on data types	Only ASCII characters are allowed	There is no limit. Binary data is also allowed.
Security	GET is less secure than POST because the data being sent is part of the URL. Never use GET when sending passwords or other sensitive information	POST is more secure than GET because parameters are not saved in the browser history or Web server logs.
Visibility of	The data is visible to everyone in the URL.	The data is not displayed in the URL.

Other HTTP Request Methods

• HEAD is the same as GET, but returns only the HTTP header and does not return the document body.
• The PUT upload specifies the URI representation.
• Delete Deletes the specified resource.
• OPTIONS returns the HTTP methods supported by the server
• Connect converts the request connection to a transparent TCP/IP channel.

The difference between the GET and POST methods of HTTP requests