Shopify Script for detecting users location and apply local currency

theme.js

//to be placed in theme.js or custom.js

//script for redirecting users to use local currency
$.get("https://ipinfo.io/json", function (response) {
  //console.log (response.country)
  var check = false;
  if (response.country === 'GB') {
    //console.log("hello UK");    
    if(!localStorage["check"]) {
   		window.location.search += '?currency=gbp';
    	localStorage["check"] = true;
	}	
    
  }else if (response.country === 'US') {
    //console.log("hello US");
    if(!localStorage["check"]) {
    	window.location.search += '?currency=usd';
    	localStorage["check"] = true;
	}
  }else if (response.country === 'AU') {
    if(!localStorage["check"]) {
    	window.location.search += '?currency=aud';
    	localStorage["check"] = true;
	}
  }else if (response.country === 'CA') {
    if(!localStorage["check"]) {
    	window.location.search += '?currency=cad';
    	localStorage["check"] = true;
	}
  }else if (response.country === 'JP') {
    if(!localStorage["check"]) {
    	window.location.search += '?currency=jpy';
    	localStorage["check"] = true;
	}
  }else if (response.country === 'AL' || response.country === 'AT'|| response.country === 'BE'|| response.country === 'CY'|| response.country === 'EE'|| response.country === 'FI'|| response.country === 'FR'|| response.country === 'DE'|| response.country === 'GR'|| response.country === 'IE'|| response.country === 'IT'|| response.country === 'LV'|| response.country === 'LT'|| response.country === 'LU'|| response.country === 'MT'|| response.country === 'NL'|| response.country === 'PT'|| response.country === 'SK'|| response.country === 'SI'|| response.country === 'ES'|| response.country === 'EZ') {
    if(!localStorage["check"]) {
    	window.location.search += '?currency=eur';
    	localStorage["check"] = true;
	}
  }
  
  
});