Adrian AdrianBinDC

Unofficial APOD utilizes Alamofire to request data from NASA's APOD servers. The response data is returned in JSON format. Unofficial APOD utilizes structs conforming to Swift's Codable protocol to parse the JSON returns and persists the data in Core Data. Prior to requesting information from NASA's servers, Unofficial APOD first checks to see if it has already retrieved the data before making a network request.

NASA returns a JSON with text data about the image, but no binary data is returned. Unofficial APOD utilizes AlamofireImage to download the most recent 60 days' worth of non-copywritten images on a background thread and persists them locally to speed up performance for the user.

Copywritten images are not stored on the device. So the user doesn't see an empty screen, the UICircularProgressRing framework is configured to display the status of the image download.

Giv

Distance conversion in Swift

As of iOS 10, the Measurement class was introduced, which obviates the need lookup values and create constants to convert values. Here is a simple extension to convert distances.

extension Double {
  func convert(from originalUnit: UnitLength, to convertedUnit: UnitLength) -> Double {
    return Measurement(value: self, unit: originalUnit).converted(to: convertedUnit).value
  }
}

Set Zoom Scale on Map Region in Swift

MKCoordinateRegionMakeWithDistance can be used to make a region with a specified distance (in meters).

Here is the method signature:

func MKCoordinateRegionMakeWithDistance(_ centerCoordinate: CLLocationCoordinate2D, 
                                        _ latitudinalMeters: CLLocationDistance, 
                                        _ longitudinalMeters: CLLocationDistance) -> MKCoordinateRegion

Use an extension to get your desired distance and convert it into meters.

New in Swift 4.2

Summary from HackingWithSwift.com

CaseIterable

The CaseIterable protocol provides an allCases method that turns all of your cases into an array.

enum Pasta: String, CaseIterable {

case canneloni = "Cannelloni pasta"

Issues

CocoaPod Bloat

There's a ton of CocoaPods in the project. Do you need them all?
- I see two types of cocoapods for image caching

Lack of Tests

there are only tests for one class and they don't pass
I should be able to download the repo, install the cocoapods and run the tests and they should all pass without having to jump through special hoops.me.com

Review

S3 and IAM Summary

IAM consists of the following
- Users
- Groups
- Roles
- Policies
  - Policies are in a JSON file

	//
	// MapRegionUtility.swift
	// QuakeData
	//
	// Created by Adrian Bolinger on 7/9/18.
	// Copyright © 2018 Adrian Bolinger.
	//
	/*
	Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

	//
	// ConnectivityUtility.swift
	//
	// Created by Adrian Bolinger on 7/10/18.
	// Copyright © 2018 Adrian Bolinger. All rights reserved.
	//

	import UIKit
	import Reachability

	extension Double {
	func convert(from originalUnit: UnitLength, to convertedUnit: UnitLength) -> Double {
	return Measurement(value: self, unit: originalUnit).converted(to: convertedUnit).value
	}
	}

	/*
	let miles = 26.2
	let meters = miles.convert(from: .miles, to: .meters)
	*/

	import UIKit

	/*
	This is a high-level physics for poets sketch of an implementation for
	sending and receiving messages. YOU'LL NEED TO REFINE IT.

	If you want to implment encryption, I'd use a framework like CryptoKit,
	or some well-known, public framework w/ a lotta stars, recent commits,
	and not a lot of issues on the GitHub page.