Artur Chmaro

@UCFmXR9JohMyuXPya2OUkcjg - 12.5K subscribers

Tutorials and other materials related to Web3, React, JavaScript, Ethereum, Node.js, blockchain, IPFS and more.

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First look on fully homomorphic encryption using ZAMA

First look on fully homomorphic encryption using ZAMA Artur Chmaro

113 views - 2 weeks ago

Simple AI Chatbot that suggests games to play (Next.js + PostgreSQL + OpenRouter)

Simple AI Chatbot that suggests games to play (Next.js + PostgreSQL + OpenRouter) Artur Chmaro

309 views - 4 months ago

Building Web3 Apps in 2025: My Ideal Tech Stack

Building Web3 Apps in 2025: My Ideal Tech Stack Artur Chmaro

1.3K views - 11 months ago

Building ERC20/NFT token-gated access in Next.js 14

Building ERC20/NFT token-gated access in Next.js 14 Artur Chmaro

964 views - 1 year ago

Allow clients deploy smart contracts with your web app

Allow clients deploy smart contracts with your web app Artur Chmaro

757 views - 1 year ago

Implementing ERC20 USDT Payments in React, wagmi and viem

Implementing ERC20 USDT Payments in React, wagmi and viem Artur Chmaro

8.3K views - 2 years ago

Easy Guide to Converting USD price to crypto in Smart Contracts

Easy Guide to Converting USD price to crypto in Smart Contracts Artur Chmaro

1.1K views - 2 years ago

NFT Drop Checklist for Success (dev perspective) ✅

NFT Drop Checklist for Success (dev perspective) ✅ Artur Chmaro

841 views - 2 years ago

Limiting NFT Minting to a Specific Timeframe in Solidity

Limiting NFT Minting to a Specific Timeframe in Solidity Artur Chmaro

984 views - 2 years ago

How to get real-time events about NFTs from OpenSea in Node.js

How to get real-time events about NFTs from OpenSea in Node.js Artur Chmaro

4.2K views - 3 years ago

How to split ETH payments with smart contract

How to split ETH payments with smart contract Artur Chmaro

9.1K views - 3 years ago

Resolve ENS domain name in React.js Hook

Resolve ENS domain name in React.js Hook Artur Chmaro

2K views - 3 years ago

How to estimate smart contract costs (deployment and functions)

How to estimate smart contract costs (deployment and functions) Artur Chmaro

10.3K views - 4 years ago

How to stake / deposit NFT in Solidity smart contract

How to stake / deposit NFT in Solidity smart contract Artur Chmaro

21.6K views - 4 years ago

How to use old/deployed smart contract in Remix IDE

How to use old/deployed smart contract in Remix IDE Artur Chmaro

55.9K views - 4 years ago

How to publish and verify smart contract code (Solidity, Remix, EVM)

How to publish and verify smart contract code (Solidity, Remix, EVM) Artur Chmaro

31.7K views - 4 years ago

How to store NFT metadata and SVG image completely on-chain (ERC721/ERC1155)

How to store NFT metadata and SVG image completely on-chain (ERC721/ERC1155) Artur Chmaro

17.9K views - 4 years ago

How to deploy any smart contract to BSC or Polygon?

How to deploy any smart contract to BSC or Polygon? Artur Chmaro

13.2K views - 4 years ago

Switch MetaMask network to any chain 🛠 React.js

Switch MetaMask network to any chain 🛠 React.js Artur Chmaro

14.6K views - 4 years ago

Integrate React.js with Smart Contracts (read / write / events)

Integrate React.js with Smart Contracts (read / write / events) Artur Chmaro

55.7K views - 4 years ago

Super simple global state in React 🤩 (react-hooks-global-state)

Super simple global state in React 🤩 (react-hooks-global-state) Artur Chmaro

27.1K views - 4 years ago

SupaBase.io + Next.js 🔥 First-look / overview

SupaBase.io + Next.js 🔥 First-look / overview Artur Chmaro

4.5K views - 4 years ago

How to store NFT metadata URI in ERC1155 Solidity 🧐

How to store NFT metadata URI in ERC1155 Solidity 🧐 Artur Chmaro

31.7K views - 4 years ago

Zdecentralizowany handel grami - Szymon Jankowski z Hashup.it

Zdecentralizowany handel grami - Szymon Jankowski z Hashup.it Artur Chmaro

1.5K views - 4 years ago

Transfer ERC20 token from your Solidity smart contract

Transfer ERC20 token from your Solidity smart contract Artur Chmaro

49.2K views - 4 years ago

Trade/sell NFTs automatically from Solidity smart contract

Trade/sell NFTs automatically from Solidity smart contract Artur Chmaro

18.2K views - 4 years ago

How to mint NFT and publish it on OpenSea using ERC1155 smart contract

How to mint NFT and publish it on OpenSea using ERC1155 smart contract Artur Chmaro

70.5K views - 4 years ago

Deploy your first Solidity smart contract with Remix IDE

Deploy your first Solidity smart contract with Remix IDE Artur Chmaro

82K views - 4 years ago

Sign and Verify messages with React.js and MetaMask

Sign and Verify messages with React.js and MetaMask Artur Chmaro

38.2K views - 4 years ago

Send ETH payments using React.js / MetaMask

Send ETH payments using React.js / MetaMask Artur Chmaro

29.6K views - 4 years ago

Web Developerka w Japoni - Justyna Marciniak

Web Developerka w Japoni - Justyna Marciniak Artur Chmaro

1.4K views - 4 years ago

Github Actions - Wykonywanie poleceń SSH, automatyczny deploy

Github Actions - Wykonywanie poleceń SSH, automatyczny deploy Artur Chmaro

3.2K views - 4 years ago

Logowanie via Github ⚡️ Next + NextAuth + Prisma

Logowanie via Github ⚡️ Next + NextAuth + Prisma Artur Chmaro

1.4K views - 4 years ago

❓ Po co nam prop "key" w React?

❓ Po co nam prop "key" w React? Artur Chmaro

2K views - 4 years ago

Bootstrap 5, Redux 4.1, Open source na Marsie, Semantic Release, Safari 14.1, 🍿 Web Prasówka #12

Bootstrap 5, Redux 4.1, Open source na Marsie, Semantic Release, Safari 14.1, 🍿 Web Prasówka #12 Artur Chmaro

751 views - 4 years ago

W czym zrobić nowy projekt React.js? 🙄 CRA? Next? Gatsby?

W czym zrobić nowy projekt React.js? 🙄 CRA? Next? Gatsby? Artur Chmaro

2K views - 4 years ago

CORS w pigułce 🔥 działanie i naprawa

CORS w pigułce 🔥 działanie i naprawa Artur Chmaro

10.1K views - 4 years ago

React Server Components - Co to jest? 🧐

React Server Components - Co to jest? 🧐 Artur Chmaro

3.2K views - 5 years ago

Napisz swój pierwszy test Node + TypeScript + Jest

Napisz swój pierwszy test Node + TypeScript + Jest Artur Chmaro

1.6K views - 5 years ago

Simple and fast deployment of a Node.js web app to a VPS server

Simple and fast deployment of a Node.js web app to a VPS server Artur Chmaro

8.6K views - 5 years ago

How to implement cart in pure React? (useReducer and useContext hooks)

How to implement cart in pure React? (useReducer and useContext hooks) Artur Chmaro

8.7K views - 5 years ago

Jak zrobić back-end w Next.js?

Jak zrobić back-end w Next.js? Artur Chmaro

5.3K views - 5 years ago

Prisma 2.0 ⚡️ Super narzędzie do baz danych w Node.js/TypeScript

Prisma 2.0 ⚡️ Super narzędzie do baz danych w Node.js/TypeScript Artur Chmaro

3K views - 5 years ago

Upload plików do AWS S3 (React + Next.js)

Upload plików do AWS S3 (React + Next.js) Artur Chmaro

2.7K views - 5 years ago

Front-end dla aplikacji Ethereum (Dev.js online #8)

Front-end dla aplikacji Ethereum (Dev.js online #8) Artur Chmaro

998 views - 5 years ago

⚡️ Next.js czyli web framework przyszłości (Promeet #30)

⚡️ Next.js czyli web framework przyszłości (Promeet #30) Artur Chmaro

9.5K views - 5 years ago

Obsługa płatności online w React + Stripe

Obsługa płatności online w React + Stripe Artur Chmaro

9.3K views - 5 years ago

Cypress - Wstęp do testów end-to-end

Cypress - Wstęp do testów end-to-end Artur Chmaro

12.6K views - 5 years ago

React Refresh - Jeszcze lepszy hot reloading

React Refresh - Jeszcze lepszy hot reloading Artur Chmaro

2K views - 5 years ago

Wyświetlanie danych z Firebase (React Hooks, React Router Dom) - fragment z live coding

Wyświetlanie danych z Firebase (React Hooks, React Router Dom) - fragment z live coding Artur Chmaro

916 views - 5 years ago

Web Pogawędki 🔴 Dekoratory, ES2020, Pandemia, Expo SDK, WarsawJS, Prettier (zapis z live'a)

Web Pogawędki 🔴 Dekoratory, ES2020, Pandemia, Expo SDK, WarsawJS, Prettier (zapis z live'a) Artur Chmaro

699 views - 5 years ago

React - szybkie i przyjemne formularze (react-hook-form)

React - szybkie i przyjemne formularze (react-hook-form) Artur Chmaro

7.9K views - 5 years ago

Redux Toolkit - Co to jest? 🤔 (skrót z live codingu)

Redux Toolkit - Co to jest? 🤔 (skrót z live codingu) Artur Chmaro

4.3K views - 5 years ago

💡5 zasad DOBREJ pracy zdalnej

💡5 zasad DOBREJ pracy zdalnej Artur Chmaro

439 views - 5 years ago

Bezpieczeństwo w Node.js (Zbyszek Tenerowicz) - FullStak #11

Bezpieczeństwo w Node.js (Zbyszek Tenerowicz) - FullStak #11 Artur Chmaro

1.1K views - 5 years ago

GraphQL ❌5 największych wad i zalet + FAQ

GraphQL ❌5 największych wad i zalet + FAQ Artur Chmaro

4K views - 5 years ago

React + Apollo - Zapytania GraphQL

React + Apollo - Zapytania GraphQL Artur Chmaro

1.5K views - 5 years ago

Hasura - Postaw GraphQL w 5 min

Hasura - Postaw GraphQL w 5 min Artur Chmaro

1.4K views - 6 years ago

🍀Co MUSISZ wiedzieć przed nauką frameworków React / Vue / Angular / Svelte?

🍀Co MUSISZ wiedzieć przed nauką frameworków React / Vue / Angular / Svelte? Artur Chmaro

2.4K views - 6 years ago

React.useState 🟢 Prosta i przyjemna obsługa formularza i walidacji

React.useState 🟢 Prosta i przyjemna obsługa formularza i walidacji Artur Chmaro

3.5K views - 6 years ago