1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
import { blob } from "https://esm.town/v/std/blob?v=11";
import { email } from "https://esm.town/v/std/email?v=11";
export const saveFormData = async (req: Request) => {
// Get existing list of submitted email addresses
let submittedEmailAddresses = await blob.getJSON("submittedEmailAddresses") as string[];
// If there were no email addresses stored, create an empty array
submittedEmailAddresses ??= [];
// Pick out the form data
const formData = await req.formData();
const emailAddress = formData.get("email") as string;
if (submittedEmailAddresses.includes(emailAddress)) {
return new Response("You're already signed up!");
}
// Send a notification email
email({ text: `${emailAddress} just signed up!`, subject: "New sign up" });
// Store form data
submittedEmailAddresses.push(emailAddress);
await blob.setJSON("submittedEmailAddresses", submittedEmailAddresses);
return new Response("Thanks! You're signed up!");
};
Only the latest version can be previewed