Health Certificate Status Lookup

Health Certificate Status Lookup

Explanation and Improvements:HTML Structure: The code now has a clear form for input, a container forbetter layout, and a `result` div to display the status. Error handling is also included.CSS Styling: Added basic styling for better presentation (font, colors, layout).JavaScript (Simulates API call):Event Listener: The `submit` event listenernow prevents the default form submission.Input Validation: Included basic validation to check if a certificate number was entered. Error message is now dynamically displayed.Simulated API Call: The code now simulates an API call using `setTimeout`. This is a placeholder; you would replace this withan actual API call to your health certificate system. The `setTimeout` is for demonstration; your code should handle the response from the API.Displaying Results: The code displays the certificate number and (crucially) a placeholder status.Error Handling: A `div` withthe class `error` is used to display error messages to the user, and the code now displays a more user-friendly message.Clearer Variable Names: More descriptive variable names were used.Important: Replace the simulated API call with your actual API call logic. Proper error handlingwill be required for production code.How to Use:1. Replace the placeholder API call: Replace the `setTimeout` with your actual API call. You’ll likely need to use JavaScript libraries like `fetch` or `axios` for making HTTP requests.
2. ImplementData Handling: Handle the response from your API. Display the correct status based on the data returned from the certificate system.
3. Error Handling: Implement proper error handling for cases where the API call fails or returns invalid data.Example API Call (using fetch):
javascript
//… (previous code)
resultDiv.innerHTML = “Loading…”;
fetch(‘/api/healthcertificate/’ + certificateNumber) // Replace with your API endpoint.then(response => {if (!response.ok) {throw new Error(‘Network response was not ok’);}return response.json();}).then(data => {// Process the data and display itresultDiv.innerHTML = ‘

Certificate Number: ‘ + certificateNumber + ‘

‘;resultDiv.innerHTML += ‘

Status:’ + data.status + ‘

‘;document.getElementById(‘errorMessage’).innerHTML = “”;}).catch(error => {console.error(‘Error:’, error);resultDiv.innerHTML = ‘

An error occurred while retrieving the status. Please try again later.

‘;document.getElementById(‘errorMessage’).innerHTML = “An error occurred.”;});
// … (rest of your code)Remember to replace `/api/healthcertificate` with the actual endpoint of your API. This example uses `fetch`, a built-in JavaScript API, butif you prefer, you could use libraries like `axios`. Remember to adjust the error handling and data display as needed to match the format of your API response.