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Convert ISO-3 to ISO-2

By default, the Ideal Postcodes API returns country code in ISO-3 format. If your platform takes in ISO-2 codes instead, use the onLoaded callback function to remap the ISO-3 codes to ISO-2.

 
AddressFinder.setup({
  apiKey: "ak_test",
  outputFields: {
    line_1: "#line_1",
    line_2: "#line_2",
    line_3: "#line_3",
    post_town: "#post_town",
    postcode: "#postcode"
  },
  onLoaded: function () {
    const dropdown = document.getElementById("countries");
    const c = this;
    // Add an event listener to listen for changes in the selected option
    dropdown.addEventListener("change", function () {
      // Get the selected value
      const iso_2 = dropdown.value;
      // Extract ISO3 if available
      const contexts = Object.values(c.options.contexts);
      for (const context of contexts) {
        if (context.iso_2 === iso_2) {
          c.applyContext(context);
          break;
        }
      }
    });
  }
});

Live Demo​

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