/** This code sets up a simple comment box system. * It leverages Deno's blob storage for persistence, * and renders an HTML form to accept new comments, * while displaying all existing comments. * TailwindCSS is used to style the HTML elements. */ import { blob } from "https://esm.town/v/std/blob"; // Key for blob storage const COMMENTS_KEY = "comments_storage"; // HTML template for the form and comments list const getHtml = (comments: string[]) => ` Comment Box

Comment Box

Previous Comments

${comment}

`; export default async function main(req: Request): Promise { // Fetch existing comments let comments: string[] = await blob.getJSON(COMMENTS_KEY) || []; if (req.method === "POST") { const formData = await req.formData(); const newComment = formData.get("comment")?.toString().trim(); if (newComment) { // Append the new comment and save to blob storage comments.push(newComment); await blob.setJSON(COMMENTS_KEY, comments); // Redirect to avoid resubmission on page refresh return Response.redirect(new URL(req.url).origin); } } // Return the HTML with comments return new Response(getHtml(comments), { headers: { "Content-Type": "text/html" } }); }

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