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// manipulate responseField to render a formatted and appropriate message
const renderResponse = (res) => {
if(res.errors){
responseField.innerHTML = "<p>Sorry, couldn't format your URL.</p><p>Try again.</p>"
} else {
responseField.innerHTML = `<p>Your shortened url is: </p><p> ${res.shortUrl} </p>`
}
}
// manipulate responseField to render an unformatted response
const renderRawResponse = (res) => {
if(res.errors){
responseField.innerHTML = "<p>Sorry, couldn't format your URL.</p><p>Try again.</p>"
} else {
let structuredRes = JSON.stringify(res).replace(/,/g, ", \n")
structuredRes = `<pre>${structuredRes}</pre>`
responseField.innerHTML = `${structuredRes}`
}
}
// Information to reach API
const apiKey = '<Your API Key>';
const url = 'https://api.rebrandly.com/v1/links';
// Some page elements
const inputField = document.querySelector('#input');
const shortenButton = document.querySelector('#shorten');
const responseField = document.querySelector('#responseField');
// AJAX functions
const shortenUrl = () => {
const urlToShorten = inputField.value;
const data = JSON.stringify({destination: urlToShorten});
const xhr = new XMLHttpRequest();
xhr.responseType = 'json';
xhr.onreadystatechange = () => {
if (xhr.readyState === XMLHttpRequest.DONE) {
renderResponse(xhr.response);
}
}
xhr.open('POST', url);
xhr.setRequestHeader('Content-type', 'application/json');
xhr.setRequestHeader('apikey', apiKey);
xhr.send(data);
}
// Clear page and call AJAX functions
const displayShortUrl = (event) => {
event.preventDefault();
while(responseField.firstChild){
responseField.removeChild(responseField.firstChild);
}
shortenUrl();
}
shortenButton.addEventListener('click', displayShortUrl);
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