How Do You Add Cookies in Webflow?

In this tutorial, we will learn how to add cookies in Webflow. Cookies are small pieces of data stored in the user’s browser, which can be used to store user preferences, track user activity, and more. Adding cookies to your Webflow site can enhance the user experience and provide personalized content.

Step 1: Create a Cookie

To create a cookie, you need to use JavaScript. Open your project in Webflow and add a new custom code block just before the closing </body> tag.

Note: If you’re not familiar with JavaScript, don’t worry! We’ll guide you through the process step by step.

Inside the custom code block, add the following script:

<script>
  function setCookie(name, value, days) {
    var expires = "";
    if (days) {
      var date = new Date();
      date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
      expires = "; expires=" + date.toUTCString();
    }
    document.cookie = name + "=" + (value || "") + expires + "; path=/";
  }
</script>

The setCookie() function takes three parameters: name, value, and days. The name parameter is used to specify the name of the cookie, while the value parameter is used to specify the value of the cookie. The days parameter indicates how many days the cookie will be stored in the browser.

Step 2: Set a Cookie Value

Now, let’s set a cookie value. You can do this by calling the setCookie() function and passing the appropriate parameters.

For example, if you want to set a cookie named “username” with the value “JohnDoe” that expires in 7 days, you can use the following code:

<script>
  setCookie("username", "JohnDoe", 7);
</script>

This code will set a cookie named “username” with the value “JohnDoe” that will expire in 7 days.

Step 3: Retrieve a Cookie Value

To retrieve a cookie value, you can use JavaScript’s document.cookie property. This property returns all the cookies associated with the current document.

To retrieve the value of a specific cookie, you need to parse the document.cookie string and extract the desired value.

<script>
  function getCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
      var c = ca[i];
      while (c.charAt(0) == ' ') c = c.substring(1, c.length);
      if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
  }

  var username = getCookie("username");
</script>

The getCookie() function takes one parameter: name. It loops through all the cookies and checks if the name of a cookie matches the specified name.

If a match is found, it returns the value of that cookie. Otherwise, it returns null.

In the example above, we retrieve the value of the “username” cookie and assign it to the variable username.

Step 4: Use Cookie Values in Your Webflow Site

Now that you know how to create and retrieve cookies, you can use their values to personalize your Webflow site.

For example, you can display a personalized greeting message based on the user’s username:

<script>
  var username = getCookie("username");
  if (username) {
    document.getElementById("greeting").innerHTML = "Welcome back, " + username + "!";
  } else {
    document.innerHTML = "Welcome!";
  }
</script>

<h3 id="greeting"></h3>

In the code above, we retrieve the value of the “username” cookie and use it to display a personalized greeting message. If no username is found, a generic welcome message is displayed instead.

Conclusion

Cookies are a powerful tool for adding functionality and personalization to your Webflow site. By following this tutorial, you have learned how to create cookies, set their values, retrieve their values, and use them in your site. Now you can enhance your users’ experience by providing personalized content and remembering their preferences.

Remember to always handle user data with care and ensure that you comply with relevant privacy regulations.

Happy coding!