Created
January 22, 2023 07:23
-
-
Save Rahmanism/af44f6b2017bfcd6b37f7f3e55608143 to your computer and use it in GitHub Desktop.
A sample code to use fetch in JavaScript
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Currency</title> | |
| </head> | |
| <body> | |
| <form> | |
| <input id="currency" placeholder="Currency" type="text" list="symbolsList"> | |
| <datalist id="symbolsList"> | |
| <option value="GBP">Great Britain Pound</option> | |
| <option value="EUR">Euro</option> | |
| <option value="TRY">Turkish Lira</option> | |
| <option value="IRR">Iranian Rial</option> | |
| </datalist> | |
| <input type="submit" value="Convert"> | |
| </form> | |
| <div id="result"> | |
| </div> | |
| <script> | |
| const fetchApiOps = () => { | |
| document.querySelector('form').onsubmit = () => { | |
| document.querySelector('#result').innerHTML = 'loading...' | |
| const myHeaders = new Headers() | |
| myHeaders.append('apikey', 'iIB9mxEEebuZwLOzLWLiBqF4gsVCa7zx') | |
| const requestOptions = { | |
| method: 'GET', | |
| redirect: 'follow', | |
| headers: myHeaders | |
| } | |
| const symbol = document.querySelector('#currency').value.toUpperCase() | |
| fetch('https://api.apilayer.com/exchangerates_data/latest?' + | |
| `symbols=${symbol}&base=USD`, requestOptions) | |
| .then(response => response.json()) | |
| .then(data => { | |
| console.log(data) | |
| if (!data.error) { | |
| const rate = data.rates[symbol] | |
| document.querySelector('#result').innerHTML = | |
| `1 USD is ${rate.toFixed(2)} ${symbol}.` | |
| } else { | |
| document.querySelector('#result').innerHTML = "Not found" | |
| } | |
| }) | |
| .catch(error => { | |
| document.querySelector('#result').innerHTML = 'An error happend :(' | |
| console.log('ERR:', error) | |
| }) | |
| return false | |
| } | |
| } | |
| document.addEventListener('DOMContentLoaded', fetchApiOps) | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment