run python from inside of node js

function callName(req, res) {

     

    // Use child_process.spawn method from

    // child_process module and assign it

    // to variable spawn

    var spawn = require("child_process").spawn;

     

    // Parameters passed in spawn -

    // 1. type_of_script

    // 2. list containing Path of the script

    //    and arguments for the script

     

    // E.g : http://localhost:3000/name?firstname=Mike&lastname=Will

    // so, first name = Mike and last name = Will

    var process = spawn('python',["./hello.py",

                            req.query.firstname,

                            req.query.lastname] );

    // Takes stdout data from script which executed

    // with arguments and send this data to res object

    process.stdout.on('data', function(data) {

        res.send(data.toString());

    } )

}

https://www.geeksforgeeks.org/run-python-script-node-js-using-child-process-spawn-method/