printerest downloader script

printerestdownloader.js

//login printerest => search a keyword => F12 => paste this script to console

function getLargestUrl(srcset) {
    const urls = srcset.split(', ');

    // Extract width and URL for each entry
    const entries = urls.map(entry => {
        const [url, widthString] = entry.split(' ');
        const width = parseInt(widthString, 10);
        return {
            url,
            width
        };
    });

    const filteredEntries = entries.filter(item => {
        if (item.url.includes('originals')){
            return true;
        }
        return false;
    
    });

    return filteredEntries[0].url;
}

function downloadImage(url) {
    if (url) {
        fetch(url)
            .then(response => response.blob())
            .then(blob => {
                const link = document.createElement('a');
                const fileName = url.split('/').pop().split('?')[0];

                if (fileName.includes('.htm')) {
                    console.log('error: limit reached ' + url)
                    return;
                }
                link.href = window.URL.createObjectURL(blob);
                link.download = fileName;
                document.body.appendChild(link);
                link.click();
                document.body.removeChild(link);
            })
            .catch(error => console.error(`Error downloading image: ${error}`));
    }
}


let listUrl = new Map();


function delay(milliseconds) {
    return new Promise(resolve => setTimeout(resolve, milliseconds));
}


async function main(){
    
    for(let i=0;i<10;i++){
        window.scrollBy(0, 500);
        let img = document.querySelectorAll('div[data-test-id="non-story-pin-image"] img')
        img.forEach(item =>{
            let srcset = item.getAttribute('srcset');
            let originUrl = getLargestUrl(srcset);
            listUrl.set(originUrl,true);
            //console.log(originUrl)
        })
        

        
        await delay(500);
    }

    for (const key of listUrl.keys()) {
      console.log('downloading: '+key);
        downloadImage(key);
        await delay(1000);
    }
    //console.log(listUrl)
}

main()