harshvishu

public typealias CompletionHandler = () -> Void

class LiftOffViewController : UIViewController {
    
    var countDownTimer: CountDown?
    
    @IBOutlet weak var labelTimeLeft: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()

harshvishu

//
//  CountDownTimer.swift
//
//  Created by Harsh Vishwakarma.
//

import Foundation
import UIKit

final class CountDownTimer: NSObject, CountDown {

harshvishu

import Foundation

public typealias CompletionHandler = () -> Void

protocol CountDown: NSObjectProtocol {
    // 1
    var timeElapsed: TimeInterval {get set}
    var timeLimit: TimeInterval {get set}
    
    // 2 

harshvishu

curl -X GET \
 http://localhost:5000/chain \

harshvishu

curl -X POST \
  http://localhost:5000/transactions/new \
  -H 'content-type: application/json' \
  -d '{
 "sender": "d4ee26eee15148ee92c6cd394edd974e",
 "recipient": "4as226eee1514743e92c6cd394edd974f",
 "amount": 5
}'

harshvishu

curl -X GET \
  http://localhost:5000/mine \

harshvishu

curl -X POST \
  http://localhost:5000/nodes/register \
  -H 'content-type: application/json' \
  -d '{
 "nodes": ["http://127.0.0.104:5000"]
}'

harshvishu

curl -X GET \
  http://localhost:5000/nodes/resolve \

harshvishu

{
	"info": {
		"_postman_id": "4378e49e-75dc-4772-be83-27806ad15b2c",
		"name": "Swift Blockchain",
		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
	},
	"item": [
		{
			"name": "Get Chain",
			"protocolProfileBehavior": {

harshvishu

  class Blockchain: Chain {
    
    // MARK: - Properties
    ...
    
    var nodes: Set<String>
    
    // MARK: - Initializers
    init() {