我应该使用get还是post？ 或两者？

Question

I'm relatively new to get and post etc, so any help is welcome!

In my App.js file, I have a user text input field and a submit button, and I'd like to do a couple things with this information:

1. Return a string from my server.js file to the same page
2. Increase a counter each time the button is pressed and output this value to a separate stats.js file

Am I on the right lines by thinking I should use a post to send the button click event back to server.js, and another post to return the string from server.js?

And the same for the second point?

Ie In the button onClick function:

<form action = '/' method = ‘POST’>

And in the server.js, something like:

App.post('/', (req, res) {
    // return string code here
}

I think I just need a bit of guidance on which files i should be doing methods :) any help appreciated!

Answer 1

<FORM> actions should always be a POST

As a general rule for other transfers - use GET to 'request' data, and POST to send/upload it.

Answer 2

Read section 4 of RFC 7230 .

Forget about the user interface for the moment.

You want to get some information from the server and record some statistics about it.

The statistics are a side effect, they aren't the real purpose of the request, they are essentially just a standard access.log file. This means that, despite the record of the request being made, you are making a safe request.

So make one request, and make it a GET request.