stinger

import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String), parserError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"

stinger

//: # Swift 3: JSON-serializable structs using protocols
//: Most of the implementation is based on the code in [this blog post](http://codelle.com/blog/2016/5/an-easy-way-to-convert-swift-structs-to-json/)
import Foundation

//: ### Defining the protocols
protocol JSONRepresentable {
    var JSONRepresentation: Any { get }
}

protocol JSONSerializable: JSONRepresentable {}

stinger

//: # Swift 3: URLSessionDelegate
//: The following example shows how to use `OperationQueue` to queue the network requests. This is useful in many ways (for delaying queued requests when the networking goes down for example)

import Foundation
import PlaygroundSupport

class Requester:NSObject {

    let opQueue = OperationQueue()
    var response:URLResponse?

stinger

import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"

stinger

import Foundation

extension Date {
    typealias FormattedString = (DateFormatter) -> String

    func formatted(by format: String) -> FormattedString {
        return { formatter in
            formatter.dateFormat = format
            return formatter.string(from: self)
        }

stinger

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String), parserError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"
        case .apiError(let reason), .parserError(let reason):
            return reason
        }

stinger

//
//  ContentView.swift
//  Shared
//
//  Created by Costantino Pistagna on 25/03/21.
//

import SwiftUI

struct ContentView: View {

stinger

// Add the following to the Info.plist
// <key>NSCameraUsageDescription</key>
// <string>Allow our app to take photos</string>

AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo, completionHandler: {[weak self] status in
	if status {
		let session = AVCaptureSession()
		for device in AVCaptureDevice.devices() {
			if let device = device as? AVCaptureDevice, device.position == AVCaptureDevicePosition.back {
				self.device = device

stinger

//: # Swift 3: Base64 encoding and decoding
import Foundation

extension String {
//: ### Base64 encoding a string
    func base64Encoded() -> String? {
        if let data = self.data(using: .utf8) {
            return data.base64EncodedString()
        }
        return nil

stinger

import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknownError
    case unknownURL
    case unknownData
    case parserError(reason: String)
    case apiError(reason: String)