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Guestbook

You can put an interactive guestbook on your website using vals!

This val is the backend of the guestbook that returns existing messages and handles new messages.

To generate a HTML snippet to post on your website, use @vtdocs.generateGuestbookSnippet.

Setup

Fork this val.

Paste the below snippet into your Val Town workspace – replacing alice and guestbook with your Val Town username and the name of @vtdocs.guestbook fork respectively.

@vtdocs.generateGuestbookSnippet('alice', 'guestbook')

Place the HTML block it returns anywhere on your website.

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import { set } from "https://esm.town/v/std/set?v=11";
let { guestbookMessages } = await import("https://esm.town/v/vtdocs/guestbookMessages");
export const guestbook = async (req: express.Request, res: express.Response) => {
const esc = (await import("npm:escape-html@1.0.3")).default;
if (guestbookMessages === undefined) {
guestbookMessages = [];
}
if (req.method === "GET") {
return res.json(guestbookMessages);
}
if (req.body.name === undefined || req.body.text === undefined) {
return res.status(400);
}
guestbookMessages.push({
name: esc(req.body.name),
text: esc(req.body.text),
});
await set(
"guestbookMessages",
guestbookMessages,
);
return res.status(200);
};
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October 23, 2023