Add Export Button to your Dashboard

Here, we found out how to add Export Button that generates PDF and saves it locally on User Device when pressed.

Here is result, on right corner we have block with Export Button

To achieve that, lets edit Dashboard Layout. Proceed to Edit Dashboard Layout

So here a Dashboard Constructor, press Add New Component

Add Apex Chart (soon will be renamed to Custom Code Component)

To make it all work, we borrow code from PDF Builder

var selector = '.dashboard-apex-chart-' + scope.vm.componentData.id


var element = document.querySelector(selector);




element.innerHTML = '<button>Export</button>'

function getCookieValue(name) {
            const cookies = document.cookie.split('; '); // Split cookies into array of "name=value"
            for (let i = 0; i < cookies.length; i++) {
                const cookie = cookies[i].split('='); // Split each "name=value" into [name, value]
                if (cookie[0] === name) {
                    return decodeURIComponent(cookie[1]); // Return the decoded value if the name matches
                }
            }
            return null; // Return null if the cookie is not found
        }


element.addEventListener('click', function() {
    
    let currentUrl = window.location.href;
    
    let base_url = window.location.href.split('/a/')[0]
    
    var portfolios = filters.outputs.portfolios || [];
    var report_date = filters.outputs.report_date || utils.getYesterdayDate();
    
    var portoflio = 'Bonds Portfolio'
    
    if (filters.outputs.portfolios.length){
     portoflio = filters.outputs.portfolios[0]
    }
    
    let url_path = '/api/storage/workflows/com/finmars/pdf-builder/example/report.html?report_date='+filters.outputs.report_date+'&portfolio=' + portoflio
                
    // Replace '_builder.html' with '.html' in the URL
    let targetUrl = base_url + url_path
    
    fetch(window.location.origin + '/services/pdf-engine/print/', {
        method: "POST",
        credentials: 'include',
        body: JSON.stringify({
            "url": targetUrl,
            "access_token": getCookieValue('access_token')
        }),
        headers: {
            Accept: 'application/json',
            'Content-type': 'application/json'
        }
    }).then(response => {
        if (response.ok) return response.blob();
        throw new Error('Failed to generate PDF.');
    })
    .then(blob => {
        // Create a URL for the blob object
        const url = window.URL.createObjectURL(blob);

        // Create a link element
        const a = document.createElement('a');
        a.style.display = 'none';
        a.href = url;
        
        // Extract filename for the PDF
        let baseName = targetUrl.split('/').pop().replace('.html', '').split('?')[0]; // Strip the path and extension

        a.download = baseName + '.pdf'; // You can set the default filename here

        // Append the link, trigger the download, and remove the link
        document.body.appendChild(a);
        a.click();
        window.URL.revokeObjectURL(url);
        document.body.removeChild(a);
    })
    .catch(error => {
        console.error('Error during PDF export:', error);
        alert('Error exporting PDF. Check the console for more details.');
    });
    
})

Idea is simple, we just add <button> and add Event Listener To it, in Event Listener we make an REST API call to PDF Printer Service (pupeteer)

Things to Consider

let url_path = '/api/storage/workflows/com/finmars/pdf-builder/example/report.html?report_date='+filters.outputs.report_date+'&portfolio=' + portoflio
                
let targetUrl = base_url + url_path

We hardcoded url_path of our report.html 

Place instead of it path to your .html PDF report, also provide extra settings if required like

?report_date='+filters.outputs.report_date+'&portfolio=' + portoflio

Thats it!