Search

export { default } from "https://esm.town/v/stevekrouse/amaranthYak";

import { newRSSItems } from "https://esm.town/v/stevekrouse/newRSSItems";

export async function rssDemo10(interval) {

let items = await newRSSItems({

url: inkAndSwitchRssUrl,

lastRunAt: interval.lastRunAt,

if (items?.length)

return email({

text: JSON.stringify(items, null, 2),

subject: "New from Ink & Switch",

import { valtownToSQLite } from "https://esm.town/v/pomdtr/valTownToSQLite";

export default async function(interval: Interval) {

await valtownToSQLite();

Get the Air Quality Index (AQI) for a location via open data sources.

It's "easy" because it strings together multiple lower-level APIs to give you a simple interface for AQI.

1. Accepts a location in basically any string format (ie "downtown manhattan")

2. Uses [Nominatim](https://nominatim.org/) to turn that into longitude and latitude

3. Finds the closest sensor to you on [OpenAQ](https://openaq.org/)

const cacheKey = location => "easyAQI_locationID_cache_" + encodeURIComponent(location);

export async function easyAQI({ location }: {

location: string;

let openAQLocation = await blob.getJSON(cacheKey(location));

export let consoleEmailEx = (() => {

console.email("message"); // any JSON object can be the message

console.email({ html: "<h1>hello html emails!</h1>" }); // you can send HTML emails

console.email({ hi: "there" }, "Subject Line"); // optional second arg is the subject line

console.email({ html: "<b>hi!</b>", subject: "Subject accepted here too" });

export let mockdevices = (user) => {

// use user name to select devices

let devices = [];

let id = 0;

for (let letter of user) {

// add a device if charcode is even

if (letter.charCodeAt() % 2 === 0) {

// pick type

let type;

if (letter.charCodeAt() % 3 === 0) {

This is an example of how to return an HTML response.

You can also preview it at https://andreterron-htmlExample.web.val.run?name=Andre

export default async function(req: Request): Promise<Response> {

const query = new URL(req.url).searchParams;

// Read name from the querystring or body. Defaults to "you" if not present.

const name = query.get("name") || (await req.json().catch(() => ({}))).name || "you";

// Returns the HTML response

return new Response(`<h1>Hi!</h1>`, {

import { sqlite } from "https://esm.town/v/std/sqlite?v=4";

export async function createNewslettersTable() {

await sqlite.execute(

CREATE TABLE IF NOT EXISTS newsletters (

id INTEGER PRIMARY KEY,

subject TEXT NOT NULL UNIQUE,

web_url TEXT NOT NULL UNIQUE,

target_send_date TIMESTAMP NOT NULL UNIQUE

export const debugSessionId = async (req, res) => {

res.set("Set-Cookie", "sessionid=helloworld; Path=/; HttpOnly");

res.send({ hello: "world" });

export let consoleEmailEx = (() => {

console.email("message"); // any JSON object can be the message

console.email({ html: "<h1>hello html emails!</h1>" }); // you can send HTML emails

console.email({ hi: "there" }, "Subject Line"); // optional second arg is the subject line

console.email({ html: "<b>hi!</b>", subject: "Subject accepted here too" });

This val demonstrates how [TypeBox](https://github.com/sinclairzx81/typebox) objects

are interchangeable with [JSON Schema](https://json-schema.org/) objects - if you run

`JSON.stringify()` on one of them, you immediately get a JSON Schema validator.

They do, in memory, have additional methods and information, but their easy conversion

to JSON Schema objects is a major win.

import { Type } from "npm:@sinclair/typebox"

const querystring = Type.Object({

v: Type.Optional(Type.Integer({ minimum: 0 })),

console.log(JSON.stringify(querystring))

Get email alerts when AQI is unhealthy near you.


1. Click `Fork`

2. Change `location` (Line 4) to describe your location. It accepts fairly flexible English descriptions which it turns into locations via [nominatim's geocoder API](https://www.val.town/v/stevekrouse/nominatimSearch).

export async function aqi(interval: Interval) {

const location = "brooklyn navy yard"; // <-- change to place, city, or zip code

const data = await easyAQI({ location });

if (!interval.lastRunAt) {

async function fetchRandomJoke() {

const response = await fetch(

"https://official-joke-api.appspot.com/random_joke",

return response.json();

const randomJoke = await fetchRandomJoke();

const setup = randomJoke.setup;

const punchline = randomJoke.punchline;

export const emailRandomJoke = email({

Get email alerts when AQI is unhealthy near you.

This val uses nominatim's geocoder to get your lat, lon, and air quality data from OpenAQ. It uses EPA's NowCast

AQI Index calculation and severity levels. Learn more: https://www.val.town/v/stevekrouse.easyAQI

export async function aqi(interval: Interval) {

const location = "lefkada greece"; // <-- change to place, city, or zip code

const data = await easyAQI({ location });

if (!interval.lastRunAt) {

email({

import { fetchDateMeProfiles } from "https://esm.town/v/stevekrouse/fetchDateMeProfiles";

export let dateMeNYWomen = fetchDateMeProfiles().then((

profiles,

profiles.filter((profile) =>

profile.Location?.includes("NYC") && profile.Gender?.includes("F")