jkereako

Concurrency

These are the most useful proposals for most iOS engineers. Read these documents in this order.

1. [Structured concurrency][5]
2. [Sendable and @Sendable closures][4]
3. [Actors][3]
4. [Async/await][1]

Actors

• [Asynchronous Main Semantics][12]

jkereako

// Generated by Copilot
package main

import (
	"bufio"
	"encoding/csv"
	"fmt"
	"os"
	"strconv"
	"strings"

jkereako

# Written by GitHub Copilot
#
# Automatically sets the system proxies for HTTP and HTTPS to 127.0.0.1:8080
#
# This only works on on macOS
import subprocess
import logging

class SetSystemProxy:
    def __init__(self):

jkereako

import Foundation
import XCTest

final class STDOUTListener {
    /// Consume messages sent to STDOUT
    let input = Pipe()

    /// Sends messages back to STDOUT
    let output = Pipe()

jkereako

import Foundation

/// Synchronously wait for an asynchronous task.
///
/// Use this is if you need to execute an asynchronous task in a synchronous
/// context _and_ the result from the asynchronous task is needed before
/// execution can proceed.
func synchronouslyWait(for closure: @escaping @Sendable () async -> Void, timeout: TimeInterval = 2) {
    let group = DispatchGroup()

jkereako

I couldn't keep track of all the RFCs related to OAuth. So here they are.

OAuth 2.0 RFCs

1. [The OAuth 2.0 Authorization Framework][1]
2. [Proof Key for Code Exchange by OAuth Public Clients][2]
3. [OAuth 2.0 for Native Apps][3]
4. [OAuth 2.0 Device Authorization Grant][4]
5. [OAuth 2.0 Token Exchange][14]

These RFCs underly the OAuth.

jkereako

import CryptoKit


/// Hashes a string and returns it as a string.
func hash(_ string: String) -> String {
  guard let data = string.data(using: .utf8) else { return "null" }

  return SHA256
    .hash(data: data)
    .map { String(format: "%02x", $0) }

jkereako

#!/usr/bin/env bash
#
# ip
#
# Shows the local and public IP addresses

set -Eeuo pipefail

# Print out error messages to STDERR.
function err() {

jkereako

#!/usr/bin/env bash
#
# resetxc
#
# Kills Xcode, deletes all caches and build artifacts and re-opens Xcode

set -Eeuo pipefail

# Print out error messages to STDERR.
function err() {

jkereako

import Foundation

public enum HTTPMethod: String {
    case get = "GET"
    case post = "POST"
    case put = "PUT"
    case delete = "DELETE"
}

public enum NetworkError: Error {