run ruby file from ajax or on button click event

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run ruby file from ajax or on button click event

posted Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

run ruby file from ajax or on button click event

i am new in ruby. so i have html code which includes one input field and button and i want when user click on that button i have to run one ruby file which has system() method.

index.html


     <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
     </head>
     <body>
        <form method="post" action="/runMethod">
           <input type="text" name="name" value="whatever">
           <input class='btn btn-primary' type='submit' value='click'>
        </form>
     </body>

app.rb

 system("wayback_machine_downloader userInput")

this is my two files code. i just want that if i click on button app.rb file should run with given input. is it possible?

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1 Reply

深蓝 · Answer 1 · 2021-02-16T21:01:15+0000

Technically, you can by writing JS code which executes the ruby file as a script by first using shell, and given the computer has ruby installed you can simply run something like this:

var w = new ActiveXObject("WScript.Shell");
w.run('ruby Scripts\test.rb');

This is however not a good way to do it as you don't get any response or error messages from the executed file, it might cause some security issues and you're executing business logic in the frontend, which is always bad.

The correct way to do it is to make the ajax call to a endpoint, where you can control the access to the information, set business logic in the backend and give proper response. I'm not sure if you're using rails, but if you're you should just create a new path in routes.rb and create a controller method for it.

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run ruby file from ajax or on button click event

run ruby file from ajax or on button click event

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