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]

These RFCs underly the OAuth.

1. [JSON Web Token (JWT)][5]

jkereako

// See: http://stackoverflow.com/questions/11531353/viewing-nsdata-contents-in-xcode#25097265
po String(data: data, encoding: .utf8)

// Objective-C equivalent.
// See: http://stackoverflow.com/questions/11531353/viewing-nsdata-contents-in-xcode#19626815
// p (char *)[buffer bytes]

jkereako

import UIKit
import WebKit

final class ReCAPTCHAViewController: UIViewController {
    private var webView: WKWebView!
    private let viewModel: ReCAPTCHAViewModel

    init(viewModel: ReCAPTCHAViewModel) {
        self.viewModel = viewModel

jkereako

iOS developer reading list

The best way to learn and master iOS development is to read the official documentation. It can be boring but you can trust its accuracy and the information will be presented without opinion.

Read documents in order where indicated.

Topics

• Preliminary guides
• Objective-C

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
#
# 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

US-AL
US-AK
US-AZ
US-AR
US-CA
US-CO
US-CT
US-DE
US-FL
US-GA

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

import Foundation

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

public enum NetworkError: Error {