fassko

webSocketTask.receive { result in
  switch result {
  case .failure(let error):
    print("Error in receiving message: \(error)")
  case .success(let message):
    switch message {
      case .string(let text):
        print("Received string: \(text)")
      case .data(let data):
        print("Received data: \(data)")

fassko

func receiveMessage() {
		webSocketTask.receive { result in
			switch result {
			case .failure(let error):
				print("Error in receiving message: \(error)")
			case .success(let message):
				switch message {
				case .string(let text):
					print("Received string: \(text)")
				case .data(let data):

fassko

func sendPing() {
  webSocketTask.sendPing { (error) in
    if let error = error {
      print("Sending PING failed: \(error)")
    }

    DispatchQueue.main.asyncAfter(deadline: .now() + 10) {
      self.sendPing()
    }
  }

fassko

webSocketTask.cancel(closeCode: .goingAway, reason: nil)

fassko

// connection disconnected
	func urlSession(URLSession, webSocketTask: URLSessionWebSocketTask, 
                  didCloseWith: URLSessionWebSocketTask.CloseCode, 
                  reason: Data?)

	// connection established
	func urlSession(URLSession, webSocketTask: URLSessionWebSocketTask, didOpenWithProtocol: String?)

fassko

import UIKit

public protocol Then {}

extension Then where Self: Any {
  
  /// Makes it available to set properties with closures just after initializing and copying the value types.
  ///
  ///     let frame = CGRect().with {
  ///       $0.origin.x = 10

fassko

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

contract Accessibility {
    uint public publicInt;
    uint internal internalInt;
    uint private privateInt;

    uint externalInt; // for external function

fassko

//SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.0;

contract DynamicSizeArray {
    uint256[] _array;

    function add(uint256 _value) external {
        _array.push(_value);
    }

fassko

//SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";

contract NFTTallinnTicket is ERC721URIStorage {
    using Counters for Counters.Counter;

fassko

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

contract Mappings {
    mapping(address => uint256) private luckyNumbers;

    function getMyLuckyNumber() external view returns(uint256) {
        require(luckyNumbers[msg.sender] != 0, "0 can't be lucky");

        return luckyNumbers[msg.sender];