Shortly URL shortening API Challenge

This is a solution to the Shortly URL shortening API Challenge challenge on Frontend Mentor.

Overview

The challenge

• View the optimal layout for the site depending on their device's screen size
• Shorten any valid URL
• See a list of their shortened links
• Copy the shortened link to their clipboard in a single click
• Receive an error message when the form is submitted if:
  • The input field is empty
  • The input is given an invalid URL

Screenshot

Links

• Solution URL: https://github.com/emil6957/shortly
• Live Site URL: https://emil6957.github.io/shortly/

My process

Built With

• Semantic HTML5 markup
• CSS3
• Flexbox
• CSS Animations
• Mobile-first workflow
• JS
• Async await
• shrtcode URL shortening API

What I learned

• Using a mobile-first workflow and using media queries

• Using Switch statements to handle Error messages

if (data.ok === false) {
    linkInput.style.border = "4px solid var(--red)";
    const errMsg = document.querySelector(".err-msg");
    switch(data.error_code) {
    case 1:
        errMsg.textContent = "Please add a URL to shorten";
        break;
    case 2:
        errMsg.textContent = "Invalid URL given";
        break;
    case 3:
        errMsg.textContent = "Rate limit reached. Wait a second and try again";
        break;
    case 4:
        errMsg.textContent = "IP-Address has been blocked for violating shrtcode's terms of service";
        break;
    case 5:
        errMsg.textcontent = "shrtcode already taken/in use. Try again";
        break;
    case 6:
        errMsg.textContent = "Unknown error";
        break;
    case 10:
        errMsg.textContent = "The link you entered is disallowed";
}

• Creating and using small CSS animations with @keyframes

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-1rem);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 1s;
}

Useful resources

• https://www.youtube.com/watch?v=0ohtVzCSHqs&ab_channel - This video helped me understand the advantages of doing a mobile-first workflow compared to desktop-first.