A Complete Guide to Airdropping Test SOL on Solana

This guide will give you a complete overview of the three ways to airdrop test SOL to your wallet (Solana CLI, Solana-Web3.js, and QuickNode Multi-chain Faucet).

Como crear y lanzar un ERC-721 (NFT)

Esta guía cubrirá la parte de creación y lanzamiento de nuestro propio ERC-721 (NFT) usando una librería de smart contract 0xcert/ethereum-erc721

Creating Fungible Tokens on the NEAR Protocol

This guide will cover the fundamentals of NEAR and teach you how to build and deploy a fungible token smart contract on the NEAR Testnet.

How to access Ethereum Mempool

This guide will describe what the Ethereum Mempool is and demonstrate how to access and query it with QuickNode.

How to Airdrop Solana NFTs with Crossmint's Minting API

Create a simple script that will allow you to mint and deliver NFTs directly to a list of customers' wallets or email addresses.

How to Build an ERC20 Token Balance App with QuickNode Token API

This guide will show you how to build an ERC20 token balance app with the QuickNode Token API.

How to Build an NFT Gallery using React and QuickNode's NFT API

In this guide, we will show you how to retrieve all the NFTs from a particular collection and demonstrate how to display them on our front-end using React, Ethers.js, and TailwindCSS.

How to Burn SPL Tokens on Solana

In this guide, you will use TypeScript and the Solana SPL Token Program to burn SPL tokens held in your wallet.

How to connect to Ethereum network with ethers.js

In this guide, we'll cover installing ethers.js, use it to connect to a web3 provider, and get the latest block height.

How To Create A 10K NFT Collection on Arbitrum Nova

In this guide, we show you the steps needed to create your own 10,000 NFT Collection on Arbitrum Nova using Solidity, JavaScript, and a non-custodial wallet.

How to Create a Fungible SPL token with the New Metaplex Token Standard

In this guide, we will learn how to create a fungible token with metadata on Solana's Devnet.

How to Create a Solana NFT Collection using Candy Machine V3 and TypeScript

In this guide, we will explore Metaplex's new JS SDK which brings the power of Candy Machine to your JavaScript and TypeScript applications to allow for quick and easy NFT minting.

How to Create A Soulbound Token

In this guide, you will learn about Soulbound tokens and why they are useful. You will also learn how to deploy a Soulbound token contract with Hardhat.

How to Create an Address in Solana using JavaScript

This step-by-step guide will show you how to create a Solana address using the Solana-Web3.js library.

How to Create an NFT Marketplace on the Polygon Blockchain

This guide will teach you how to create and deploy an NFT marketplace smart contract on the Polygon Mumbai test network using Hardhat. You will also learn how to test and interact with your deployed marketplace contract using Ethers.js.

How to Create and Deploy a Factory ERC-1155 Contract on Polygon using Truffle

This guide will show you how to create and deploy a Factory ERC-1155 smart contract on Polygon using Truffle.

How to Create and Deploy an ERC-721 (NFT)

This guide will show you how to create and deploy an ERC-721 token.

How to Create Programmable NFTs on Solana

This guide explains Programmable NFTs (pNFTs) and walks through how to mint them using TypeScript.

How to Create Websocket Subscriptions to Solana Blockchain using Typescript

Solana has several built-in handy event listeners, also known as subscriptions, that make listening for changes on the Solana Blockchain a breeze. This guide will teach you how to use several Solana event listener methods and QuickNode WebSockets to listen for changes on the chain.

How to Deploy a Smart Contract on Arbitrum Nova

This guide will show you how to build, deploy and interact with a simple storage smart contract on Arbitrum Nova using well-known developer tools such as QuickNode and Hardhat.

How to Deploy a Smart Contract on Polygon

In this guide, we will learn more about the Polygon chain and how to deploy a smart contract on Polygon.

How to Deserialize Account Data on Solana

This guide will walk you through some basics of account structs and how to use struct schemas to deserialize Solana account data.

How to do a Non-Custodial Transaction with QuickNode

This guide will take a deep dive into understanding the difference between custodial and non-custodial wallets and how to make a non-custodial transaction using QuickNode.

How to Enable Gzip on RPC calls in JavaScript using Ethers.js

In this guide, we will learn about gzip compression and how to enable gzip on RPC calls in JavaScript using the Ethers.js library.

How to Filter Mempool Transactions on Ethereum

This guide will teach you how to retrieve and filter Mempool transactions on Ethereum using a WebSocket connection and JavaScript.

How to Generate a New Bitcoin Address in JavaScript

This guide will teach you how to generate a new Bitcoin address in JavaScript using CryptoCoinJS.

How to Generate a New Ethereum Address in JavaScript

In this guide, we will cover creating an Ethereum address in JavaScript using Ethers.js.

How to Get All Tokens Held by a Wallet in Solana

This guide will walk you through creating a simple script that will query Solana's mainnet and return all of the Token Accounts owned by that wallet and their account balances.

How to get the balance of an ERC-20 token

This guide will show you how to obtain a wallet's current balance of a particular ERC-20 token.

How to Get Transaction Logs on Solana

Ever need to pull all the transactions associated with a Wallet or want to see all of the mint transactions associated with a Candy Machine? In this guide, we'll cover Solana-Web3.js - a versatile tool that makes getting transaction history a breeze. 

How to Integrate Sign-in Authentication with a Solana Wallet

In this guide, we will use the Solana Wallet Adapter to authenticate users on your dApp!

How to Interact with Uniswap using Javascript

This guide will walk you through how to interact with Uniswap smart contracts using a JavaScript library called ethers.js and Uniswap’s JavaScript SDK.

How to Listen For Newly Minted Tokens on PancakeSwap

This guide will walk you through how to make a bot that listens for and buys newly minted tokens on the PancakeSwap DEX using Ethers.js.

How to Mint an NFT on Polygon with Ethers.js

In this guide, you'll learn how to mint an NFT on Polygon with Ethers.js and gain a fundamental understanding of how to interact with other smart contracts on the blockchain.

How to Mint an NFT on Solana

In this guide, we'll learn how to mint an NFT using Solana-Web3.js!

How to Mint an NFT on Solana using Typescript

Build a custom Solana NFT Minter using TypeScript and the Metaplex SDK in this step-by-step guide.

How to Mint NFTs Using the ERC721A Implementation

This guide will teach you about the ERC721A implementation and how to deploy and mint NFTs from an ERC721A contract using Hardhat.

How to Query Solana Naming Service Domains (.sol)

In this guide, you will discover how to query Solana domain names (.sol) using TypeScript and Bonfida's SPL Name Service SDK.

How to re-send a transaction with higher gas price using ethers.js

In this guide, we'll go over all of the terminology and information around sending a transaction on Ethereum and re-sending the same transaction using Ethers.js on one of the Ethereum test networks.

How to Resolve ENS Domains Using JavaScript and QuickNode

In this guide, we will learn more about ENS and How to resolve ENS domains using JavaScript library ethers.js and QuickNode.

How to Run a Trade Butler Bot with QuickNode

This guide will give an overview of Trade Butler bots and walk you through how to run one locally with Ethereum.

How to Send a Transaction On Solana Using JavaScript

In this guide, we'll learn how to connect to Solana, obtain funds on its devnet, and send a transaction with this new and exciting technology.

How to Send an EIP-1559 Transaction

In this guide, we will learn how to send an EIP-1559 transaction using Ethers.js.

How to Send Bulk Transactions on Solana

Learn to perform bulk Solana transactions for batch processes (e.g., an airdrop to your community's NFT holders or a token distribution to early users of your dApp) in this step-by-step guide. Solana transaction composition and concurrent method calls can increase the speed and effectiveness of your script!

How to Set Up a NEAR Project from Scratch

In this guide, we will look at how we can setup a basic NEAR project from scratch, installing and configuring dependencies and customizing the project to work well with AssemblyScript.

How to Set Up and Interact with a Local Solana Validator

This guide will walk you through setting up a local Solana validator and how to interact with it including creating a wallet, performing basic transactions, and deploying a program.

How to Setup Local Development Environment for Solidity

This guide will show you how to create a local development environment for Solidity

How to stream pending transactions with ethers.js

In this guide, we will learn how to stream pending transactions from Ethereum and similar chains with Ethers.js.

How to Swap Tokens on Uniswap with Ethers.js

This guide will demonstrate how to swap tokens on Uniswap using JavaScript and the Ethers.js library. The technical demonstration will include a code walk-through and an example of a token swap from ETH to DAI on the Rinkeby test-net.

How to Transfer SPL Tokens on Solana

Transferring SPL tokens is slightly different from sending SOL, so it is essential to understand how it works as you progress on your Solana development journey. In this guide, you will use TypeScript to write a script that transfers an SPL token from one account to another on Solana's devnet.

How to Update Solana NFT Metadata Using TypeScript

Updating metadata for NFTs you created is a handy tool any NFT developer should have in their toolbelt. Learn how to update the metadata of an NFT on Solana's devnet from your terminal using the Solana-Web3 library and Metaplex JS SDKs.

How to Update Your Solana Client to Handle Versioned Transactions

This guide will explain the technical changes as a result of Solana's Versioned Transactions launch and how to update your client-side code to handle those changes.

How to Use Chainlink VRF in Your Smart Contract

In this guide, we will teach you more about Chainlink VRF and how it works.

How to Use Lookup Tables on Solana

Learn how to use Solana Lookup Tables in Versioned Transactions in this step-by-step guide.

How to Use Priority Fees on Solana

This guide provides an overview of Solana Priority Fees and a step-by-step tutorial on how to use priority fees to prioritize your Solana transactions and get them confirmed faster on the network.

How to Use Program Derived Addresses in Your Solana Anchor Program

In this guide, you will create a Solana Program using Anchor and Solana PlayGround. You will explore creating and utilizing Program Derived Address (PDA) in your work.

How to use Subspace with QuickNode

In this guide, you will learn about reactive development and how to use Subspace with QuickNode.

How to Use the Solana Memo Program

In this guide, we will learn how to add notes to your transaction using the Solana Memo program.

How to Use Versioned Transactions on Solana

In this guide, we will walk through how to create and execute a Version 0 (V0) Transaction on Solana.

Integrate Your Svelte App with a Smart Contract

In this article, you will learn how to build a sample app in Svelte, and connect it to a smart contract that we deploy on the Ropsten Network.

Interacting with 0x API using JavaScript

This guide will demonstrate how to interact with the 0x API, specifically how to get the best price quote for a pair of tokens using Javascript.

Solana Transaction Propagation - Handling Dropped Transactions

This guide will demonstrate how to create a tool that monitors a Solana transaction to verify that it has been successfully added to a block or expired.

The Diamond Standard (EIP-2535) Explained - Part 2

In this guide, you will learn how to create, deploy, and test an EIP-2535 compliant Diamond smart contract using the diamond-1-hardhat repository and louper.dev, which is a tool for inspecting diamond smart contracts on EVM-based chains.

The Web3 Developer Stack

In this guide, you will learn more about the web3 developer stack and the tech included.

Three Ways to Check the Balance of a Solana Wallet Address

This guide will give you a complete overview of the three ways to check the balance of a Solana wallet (Solana CLI, Solana-Web3.js, and cURL).

What is an IDL?

In this guide, you learn what IDLs are and how to use them in Solana programming.