How To Auto Select Country Using IP Lookup In jQuery

WebSolutionStuff | May-15-2023 | Categories : Laravel PHP jQuery

In this article, we will see how to auto select a country using IP lookup in jquery. Here, we will learn about autoselect the user's country and validating the telephone number. International Telephone Input supports setting the initial selected country to the user's current country, using an IP lookup service.

So, let's see intltelinput set country code dynamically, country code with flag dropdown jquery, international telephone input jquery validation, autoselect user's country and validate telephone number, international phone number validation javascript.

Here, we use the International Telephone Input plugin for auto select user country with validation. International Telephone Input is a plugin, written in pure JavaScript, for handling international telephone numbers.

You must enable two initialization options. First, you must set the initialCountry option to "auto". This tells the plugin to use the IP lookup service to determine the user's country. Second, you must set the geoIpLookup option to a function that will make the IP lookup request and return the country code.

Example:

<html lang="en">
<head>
	<title>How To Auto Select Country Using IP Lookup In jQuery - Techsolutionstuff</title>
	<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/build/css/intlTelInput.css">
</head>
<body>
	<div class="col-md-6 offset-md-2">
		<div class="container mt-5">
			<div class="card">
				<div class="card-header">
					<strong>How To Auto Select Country Using IP Lookup In jQuery - Techsolutionstuff</strong>
				</div>
				<div class="card-body">
					<h6 class="card-title">Phone Number:</h6>
					<input id="phone" type="tel">
					<span id="valid-msg" class="hide">✓ Valid</span>
					<span id="error-msg" class="hide"></span>
				</div>
			</div>
		</div>
	</div>
</body>
</html>
<script src="https://cdn.jsdelivr.net/npm/intl-t[email protected]/build/js/intlTelInput.min.js"></script>

CSS:

.hide {
  display: none;
}
#valid-msg {
  color: #00c900;
}

jQuery:

It is important to validate any user input before saving it to your backend. With International Telephone Input, you can use the isValidNumber method, which returns true or false. If it returns false, and you'd like more detail, you can then use the getValidationError method to get more information.

const input = document.querySelector("#phone");
const errorMsg = document.querySelector("#error-msg");
const validMsg = document.querySelector("#valid-msg");

// here, the index maps to the error code returned from getValidationError - see readme
const errorMap = ["Invalid number", "Invalid country code", "Too short", "Too long", "Invalid number"];

// initialise plugin
const iti = window.intlTelInput(input, {
  initialCountry: "auto",
  geoIpLookup: callback => {
    fetch("https://ipapi.co/json")
      .then(res => res.json())
      .then(data => callback(data.country_code))
      .catch(() => callback("us"));
  },
  utilsScript: "https://cdn.jsdelivr.net/npm/[email protected]/build/js/utils.js"
});

const reset = () => {
  input.classList.remove("error");
  errorMsg.innerHTML = "";
  errorMsg.classList.add("hide");
  validMsg.classList.add("hide");
};

// on blur: validate
input.addEventListener('blur', () => {
  reset();
  if (input.value.trim()) {
    if (iti.isValidNumber()) {
      validMsg.classList.remove("hide");
    } else {
      input.classList.add("error");
      const errorCode = iti.getValidationError();
      errorMsg.innerHTML = errorMap[errorCode];
      errorMsg.classList.remove("hide");
    }
  }
});

// on keyup / change flag: reset
input.addEventListener('change', reset);
input.addEventListener('keyup', reset);

Output:

how_to_auto_select_country_using_ip_lookup_in_jquery_output