jdnichollsc

The Job Interview Guide 💼

And English is a Work in Progress ⌛

jdnichollsc

// SPDX-License-Identifier: MIT
pragma solidity 0.8.21;

import {VRFCoordinatorV2Interface} from "@chainlink/contracts/src/v0.8/interfaces/VRFCoordinatorV2Interface.sol";
import {VRFConsumerBaseV2} from "@chainlink/contracts/src/v0.8/vrf/VRFConsumerBaseV2.sol";
import {ConfirmedOwner} from "@chainlink/contracts/src/v0.8/shared/access/ConfirmedOwner.sol";

// Fuji Testnet: 0xb9477bfbCAe729643b8251404Fa6E4356bB3d9A3
contract RandomNumber is VRFConsumerBaseV2 {
    VRFCoordinatorV2Interface COORDINATOR;

jdnichollsc

Ok, if you're a newbie like me this is the process (After enable the termux storage permissions):

Initialize TermuxArch

startarch

Create a backup of your pacman configuration

tar zcf mirrorlist.tar.gz /etc/pacman.d/
cp /etc/pacman.conf storage/downloads/pacman.conf
cp /etc/pacman.d/mirrorlist storage/downloads/mirrorlist

jdnichollsc

import { join } from 'path'
import { get } from 'lodash'
import { Storage } from '@google-cloud/storage'
import { BUCKET_NAME } from '../constants'
import { base64MimeType } from '../utils'

const gcloudPathKey = join(__dirname, '../gcloud-key.json')

const storage = new Storage({
  projectId: 'my-project-id',

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var bootState = {
    preload: function () {
        this.game.load.image('loading', 'assets/loading.png');                //Load images to show progress bar in the next state 
        this.game.load.image('loadingborder', 'assets/loadingborder.png');
        this.game.stage.backgroundColor = '#A5DEF1';                          //Change background color if you want
    },
    create: function () {
        //Configure plugins like better transitions
        this.game.stateTransition = this.game.plugins.add(Phaser.Plugin.StateTransition);
        this.game.stateTransition.configure({

jdnichollsc

//By https://codedump.io/share/Fd3DmsM6UAeS/1/creating-a-blob-from-a-base64-string-in-javascript
//Example
//var blob = b64toBlob(b64Data, contentType);
//var blobUrl = URL.createObjectURL(blob);
function b64toBlob(b64Data, contentType, sliceSize) {
  contentType = contentType || 'image/png';
  sliceSize = sliceSize || 512;

  var byteCharacters = atob(b64Data);
  var byteArrays = [];

jdnichollsc

Oraculo

Blockchain es deterministico: No se puede conectar de manera directa con información de otras fuentes

Por lo tanto hay un problema de conectividad sin un oraculo

jdnichollsc

import React, { useEffect } from 'react'
import {
  Text
} from 'react-native'
import useSignalR from './useSignalR'
import { getCounterAndToken } from '../services/api'
import { hideError, showErrorAndRetryAction } from '../services/common'

/**
 * A hook for getting realtime updates of a counter

jdnichollsc

import { useInfiniteQuery } from '@tanstack/react-query';

import { MarketplaceItem } from '../models';
import { getMarketplaceItems } from '../services';

export type UseMarketplaceItemsProps = {
  query: string;
  initialData?: MarketplaceItem[];
  from?: number;
  size?: number;

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// This is optional, only for building your own npm packages using those polyfills
// This is not useful to fix issues from external packages like web3 dependencies

import { Buffer } from "buffer"
import * as process from "process"

globalThis.Buffer = Buffer as unknown as BufferConstructor;
globalThis.process = process as unknown as NodeJS.Process;

// So only use this alternative if you don't want to use the below patch fix for RemixJS!