Utilizing the Power of AJAX in Combination with an Event Loop

I have a function that is supposed to make AJAX requests with an event loop while taking 9 inputs at the top and querying them from a database. Currently, it only logs to the console but will eventually perform more actions. However, I am encountering an error of "undefined" and I'm unsure what the issue might be.

var cards = [
  "Black Lotus",
  "Mox Pearl",
  "Mox Sapphire",
  "Mox Jet",
  "Mox Ruby",
  "Mox Emerald",
  "Time Walk",
  "Timetwister",
  "Ancestral Recall",
];

for (var i = 0; i < cards.length; i++) {
  function renderBinder() {
    var cardName = cards[i];
    
    var queryURL = "https://api.scryfall.com/cards/named?fuzzy=" + cardName;

    $.ajax({
      url: queryURL,

      method: "GET",
    }).then(function (response) {
      console.log(response.name);
    });
  }
}

Answer №1

If you're looking to fetch card details sequentially using AJAX requests, here's a simple way to achieve that. The function named fetchCardDetails accepts an array of cards as an argument. It removes one card at a time from the list, makes an AJAX call for that specific card, and upon successful retrieval of data, it calls itself again with the updated list excluding the current card.

var cards = [
  "Black Lotus",
  "Mox Pearl",
  "Mox Sapphire",
  "Mox Jet",
  "Mox Ruby",
  "Mox Emerald",
  "Time Walk",
  "Timetwister",
  "Ancestral Recall",
];

function fetchCardDetails(cards) {
    if (cards.length) {
        $.ajax({
            method: 'GET',
            url: "https://api.scryfall.com/cards/named?fuzzy=" + cards.pop()
        })
        .then((response) => {
            console.log(response);
            fetchCardDetails(cards);
        });
    }
}

fetchCardDetails(cards); // Outputs response for each request made

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