myobie

console.log('Fetching...')
const res = await fetch('https://example.com')
const body = new Uint8Array(await res.arrayBuffer())
console.log('---')
await Deno.stdout.write(body)
console.log('---')
console.log('Done.')

myobie

// Start listening on port 8080 of localhost.
const server = Deno.listen({ port: 8080 })
console.log('HTTP webserver running...')

const headers = Object.freeze({
  'Content-type': 'plain/text'
})

for await (const conn of server) {
  // deno-lint-ignore no-extra-semi

myobie

defmodule POC.Params do
  import Ecto.Changeset

  @spec permit(map, map) :: map
  def permit(input, types) do
    {types, nested} = Enum.reduce(types, {%{}, %{}}, &process_types/2)

    {%{}, types}
    |> cast(input, Map.keys(types))
    |> permit_nested(nested)

myobie

defmodule AppWeb.Router do
  use AppWeb, :router

  pipeline :browser do
    plug Plug.Parsers,
      parsers: [:urlencoded, :multipart, :json],
      pass: ["*/*"],
      json_decoder: Phoenix.json_library()

    plug Plug.MethodOverride

myobie

defmodule Example.Poller do
  use GenServer

  @backoff [
    50,
    100,
    150,
    250,
    400,
    650

myobie

defmodule Example.Application do
  @moduledoc false

  use Application

  def start(_type, _args) do
    children = [
      Example.Repo,
      ExampleWeb.Telemetry,
      {Phoenix.PubSub, name: Example.PubSub},

myobie

import Foundation

public struct Identifier:
    Codable, CustomStringConvertible, ExpressibleByStringLiteral,
    Hashable, RawRepresentable
{
    public let rawValue: [UInt8]
    public let dataValue: Data
    private let stringValue: String
    

myobie

Previewing encrypted content on the web

This would be an extension to The Open Graph protocol.

As more and more people are using privacy preserving tools for sharing content on the web, more content embedded into web pages will be end-to-end encrypted and decrypted in-browser by javascript or wasm code.

A current problem with previews of web URLs is they require the server to know the exact contents of the URL and be able to provide a preview as a resource either inside a header or as a URL to an image. If the primary content at the URL were encrypted, no preview could be provided directly by the server.

What the server could provide is an encrypted preview which was encrypted with a symmetric key by the original creator using one of the standard algorithms provided by webcrypto. Then the browser/client could find the decryption key in the URL fragment (or prompt the user for it) to then facilitate the decryption of the preview content safely on device. This would provide a standard

myobie

import Foundation
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true

// either throws an Error or returns a String result
typealias ThrowsCallback = () throws -> (String)

enum AsyncError: Error {
    case kaboom
}

myobie

const worker = new Worker('/tests.js')

worker.onmessage = e => {
  if (e.data && e.data._command) {
    if (e.data._command === 'console') {
      const type = e.data.type || 'log'
      const msg = e.data.msg || '<empty>'

      switch (type) {
        case 'error':