Please help (dev console)

need some help with javascript since im really bad with it, and gpt can't help me either, i'm trying to download all pdf files of example.com/ebooks/x.pdf (where x is a random file name), and send it to a discord webhook. i have full access to the website, and so would any other person, its free to view by anyone, i just want to automize it so i don't have to do it myself, only thing is i don't really know javascript that well, can someone help?

gpt gave this:

// Your Discord webhook URL  
const webhookURL = 'https://discord.com/api/webhooks/your-webhook-url';  

// Base URL where PDFs are stored  
const baseURL = 'https://example.com/ebooks/';  

// Function to download and send PDFs  
async function downloadAndSendEbooks() {  
    console.log(`Starting to fetch PDF filenames from ${baseURL}`);  

    try {  
        // Fetch the directory listing page  
        const response = await fetch(baseURL);  
        const body = await response.text();  
        
        // Parse the HTML to find PDF links  
        const parser = new DOMParser();  
        const doc = parser.parseFromString(body, 'text/html');  
        const links = Array.from(doc.querySelectorAll('a'));  
        
        const pdfLinks = links  
            .map(link => link.href)  
            .filter(href => href.endsWith('.pdf'));  

        console.log(`Found ${pdfLinks.length} PDF files.`);  

        // Iterate over the found PDF links and send them to Discord  
        for (const pdfUrl of pdfLinks) {  
            console.log(`Attempting to fetch PDF: ${pdfUrl}`);  
                
            // Fetch the PDF file  
            const pdfResponse = await fetch(pdfUrl);  
                
            // If the PDF doesn't exist (404), skip it  
            if (pdfResponse.status === 404) {  
                console.log(`PDF ${pdfUrl} not found, skipping.`);  
                continue;  
            }  

            console.log(`Successfully fetched ${pdfUrl}`);  

            const blob = await pdfResponse.blob();  
            
            // Create a FormData object for sending the file to Discord  
            const formData = new FormData();  
            formData.append('file', blob, pdfUrl.substring(pdfUrl.lastIndexOf('/') + 1)); // Get just the file name  
            
            // Send the PDF to the Discord webhook  
            const discordResponse = await fetch(webhookURL, {  
                method: 'POST',  
                body: formData  
            });  

            if (!discordResponse.ok) {  
                const errorText = await discordResponse.text();  
                throw new Error(`Failed to send to Discord: ${pdfUrl}, Status: ${discordResponse.status}, Response: ${errorText}`);  
            }  

            console.log(`PDF ${pdfUrl} sent to Discord`);  

            // Adding a delay to avoid sending too quickly  
            await new Promise(resolve => setTimeout(resolve, 3000)); // 3-second delay  
        }  
    } catch (error) {  
        console.error(`Error during the process: `, error);  
    }  
}  

// Run the function in the console  
downloadAndSendEbooks();

i want this to be runable in the chrome console