Script for choosing a winner on Instagram (JavaScript Instagram comment picker)

Ivan @ 10 / 10 / 2021 @ Blog / Programming / Скрипты
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Время чтения: ~ 7 мин.

Instagram Comment Picker

Completely reworked the script for choosing winners in contests for instagram (logic and set of functions), which I wrote earlier. Here is the code:

//MOSTLY WRITTEN BY I. Matveev of DMTRVK.RU
//THANKS TO GeorgeCrisan from https://forum.freecodecamp.org/t/how-to-make-math-random-not-repeat-same-numbers/417973/3 for the generateUniqueRandom function

// here you can set it up:

let myAccoutName = "dmrtvk.ru"; //your account name to exclude from selection
let howManyToSelect = 5; //number of winners
let numberOfCommentPagesToOpen = 100; // number times to click on the button
let timeToWaitBetweenClicks = 500; // in milliseconds, set this according to your connection speed, so the browser would have time to load the button to expand the comments list.

// end of setup, lets run it.
let haveIt = [];
(function myLoop(i) {
  setTimeout(function() {
    try {
        document.querySelector('.dCJp8.afkep').click();
        console.log('>')
    } catch(e) {
        console.log('Can find any button to click, moving on.')
        mainProcess(howManyToSelect); //how many to select
        return;
    }
    console.log('>'); //  your code here                
    if (--i) myLoop(i);   //  decrement i and call myLoop again if i > 0
  }, timeToWaitBetweenClicks)
})(numberOfCommentPagesToOpen);                   //  pass the number of iterations as an argument


function generateUniqueRandom(maxNr) {
    //Generate random number
    let random = (Math.random() * maxNr).toFixed();

    //Coerce to number by boxing
    random = Number(random);

    if(!haveIt.includes(random)) {
        haveIt.push(random);
        return random;
    } else {
        if(haveIt.length < maxNr) {
          //Recursively generate number
         return  generateUniqueRandom(maxNr);
        } else {
          console.log('No more numbers available.')
          return false;
        }
    }
}

function mainProcess(howManyToSelect){

    let userNameList = document.querySelectorAll(".sqdOP.yWX7d._8A5w5.ZIAjV "); // here goes the selector we search for
    console.log(userNameList.length);
    nameSet = new Set();

    for (let i=0; i<userNameList.length; i++) {
      nameSet.add(userNameList[i].firstChild.nodeValue);
      console.log(userNameList[i].firstChild.nodeValue);
    }

    console.log(nameSet.size);
    let keys = Array.from(nameSet.keys());

    console.log("!!!!!!!!!!!!!!!!!!!!!!!!");
    console.log("!!!!!!!!!!!!!!!!!!!!!!!!");
    console.log("!!!!!!!!!!!!!!!!!!!!!!!!");
    console.log("!!!!!!!!!!!!!!!!!!!!!!!!");
    console.log("Selected randomly:");

    for (i=0; i<howManyToSelect; i++){ //CHANGE THIS TO THE NUMBER OF WINNERS
        //console.log(keys[Math.floor(Math.random() * keys.length)]);
        randomNumber = generateUniqueRandom(keys.length);
        if (keys[randomNumber] == myAccoutName | keys[randomNumber] == undefined){ //CHANGE THIS TO EXCLUDE YOUR ACCOUNT
            i--;
        } else {
            console.log("№",i+1," —", "@", keys[randomNumber]);
        }
    }
}

Just paste into the browser console and hit enter. Pay attention to the comments in the code: there are several variables at the beginning of the program.

myAccoutName = “dmrtvk.ru”; // your account name to be excluded from selection
howManyToSelect = 5; // how many winners do you need to choose
numberOfCommentPagesToOpen = 100; // how many times to press the + button to load comments (depending on how many comments you have under the publication)
timeToWaitBetweenClicks = 500; // in milliseconds, set in accordance with the speed of your connection so that the browser has time to load the + button, which loads the list of comments.


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