Olanetsoft

var request = 	require('request');

var sendMessage = function(device, message){
	var restKey = '****';
	var appID = '****';
	request(
		{
			method:'POST',
			uri:'https://onesignal.com/api/v1/notifications',
			headers: {

Olanetsoft

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

Olanetsoft

import React, { useEffect, useState } from "react";
import { ToastContainer, toast } from "react-toastify";
import { ethers } from "ethers";
import "react-toastify/dist/ReactToastify.css";

import Head from "next/head";


export default function Home() {
  /**

Olanetsoft

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.0;

import "hardhat/console.sol";

contract CoffeePortal {
    uint256 totalCoffee;

    address payable public owner; 

Olanetsoft

const main = async () => {
  const coffeeContractFactory = await hre.ethers.getContractFactory(
    "CoffeePortal"
  );
  const coffeeContract = await coffeeContractFactory.deploy({
    value: hre.ethers.utils.parseEther("0.1"),
  });
  await coffeeContract.deployed();
  console.log("Coffee Contract deployed to:", coffeeContract.address);

Olanetsoft

const main = async () => {
  const [deployer] = await hre.ethers.getSigners();
  const accountBalance = await deployer.getBalance();

  console.log("Deploying contracts with account: ", deployer.address);
  console.log("Account balance: ", accountBalance.toString());

  const Token = await hre.ethers.getContractFactory("CoffeePortal");
  const portal = await Token.deploy({
    value: hre.ethers.utils.parseEther("0.1"),

Olanetsoft

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

import "hardhat/console.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract NewsFeed {
    uint256 totalFeeds;

    using Counters for Counters.Counter;

Olanetsoft

const { expect } = require("chai");
const { ethers } = require("hardhat");

describe("NewsFeed", function () {
  this.timeout(0);

  let NewsFeed;
  let newsFeedContract;

  before(async () => {

Olanetsoft

Series 1: Mara Blockchain Masterclass - Nigeria

This workshop is targeted at developers who are transitioning from Web2 to Web3 or have just recently gotten into Web3 and are looking to have a well-rounded foundation.

This first workshop is Series 1 in the three-part series that aims to introduce you to the blockchain and how to build on the blockchain.

Steps to set up a project, build and deploy a smart contract.

Step 1

Olanetsoft

import dotenv from "dotenv";
import fs from "fs";
import { Account, Contract, ec, json, stark, Provider, number } from "starknet";
import readline from "readline";

dotenv.config();

// Initialize provider
const url = process.env.STARKNET_TESTNET_ENDPOINT;