Algorand Developer Portal

Verify Signatures and Signed Data within Algorand Smart Contracts

This article explains how to use the ed25519verify opcode in conjunction with the tealsign goal command.

Jason Weathersby Algorand

Intermediate · 30 minutes

How to use Multisignature Transactions in Java

This tutorial covers how to sign and send transactions from a multisignature account using the Algorand Java SDK

Jesulonimi Akingbesote Medflit

Intermediate · 30 minutes

Hash Time Lock Contract Template With Go

Build a Smart Contract that functions as a HTLC using Go

Jason Weathersby Algorand

Intermediate · 30 minutes

Hash Time Lock Contract Template With JavaScript

Build a Smart Contract that functions as a HTLC using JavaScript

Jason Weathersby Algorand

Intermediate · 30 minutes

Hash Time Lock Contract Template With Python

Build a Smart Contract that functions as a HTLC using Python

Jason Weathersby Algorand

Intermediate · 30 minutes

Hash Time Lock Contract Template With Java

Build a Smart Contract that functions as a HTLC using Java

Jason Weathersby Algorand

Intermediate · 1 hour

Sending Rewards to ICO Investors Using Batch Transactions in Python

In the early stages of their project, ASA creators are supported by the contributions of early investors. In this tutorial, we will look at how you can obtain all the transactions that have been made to your wallet and reward donors with your token.

Marc Fresquet Rius ASA Portfolio

Updated PyTeal Resources

PyTeal, a language binding for TEAL, is a community project created to make writing Algorand Smart Contracts (ASC) easier. This article summarizes the latest resources available to start building Algorand Smart Contracts in Python.

Liz Baran Algorand

Introducing Algorand’s V2 Indexer

Introducing the new Algorand Indexer - a fast and efficient way to search for transactions, accounts, assets, and blocks on the Algorand blockchain.

Jason Weathersby Algorand

What's New: Algorand v2.0.7

Algorand v2.0.7 was released to MainNet and TestNet, accompanied by a new set of features in the Algorand APIs. Learn more about what's new in this article.

Liz Baran Algorand

Smart Contract SDK Usage Updated to V2

The feature guide for accessing a TEAL program from an SDK is updated for V2. This guide contains SDK samples using TEAL programs with contract accounts or delegated signatures.

Russell Fustino Algorand

Using a Smart Contract for Advanced Approvals: Hierarchical Thresholds

Design and implement an escrow contract account using hierarchical threshold approvals to secure the corporate treasury.

Ryan R. Fox Algorand

TEAL ALGO Oracle in Algorand Layer-1

In a blockchain, the ability to reference a price on-chain enables a seamless and trustless transaction environment, especially for automated transactions and smart contracts. Oracles are the entities in charge of broadcasting off-chain data such as market price to the blockchain, and serve as a source of truth that allows on-chain dApps to measure the value of assets referenced within a transaction. Rand Labs and Borderless Capital releases a Algorand Oracle that can be referenced in atomic transfers using TEAL stateful and stateless smart contracts.

Pablo Yabo Rand Labs

Linking Algorand Stateful and Stateless Smart Contracts

This article discussing linking stateful and stateless smart contracts and why it makes sense in many applications.

Jason Weathersby Algorand

Making Development Easier with Algorand IDE Playground

The RockX IDE Playground for Algorand allows developers to try out many protocol features within a Web IDE.

Tony Chew RockX

Using Assets and Smart Contracts in Real Estate

Blockchain enables disruptive innovation within the real estate industry. This tutorial series explains the basics and creates an NFT to represent a property.

Vincenzo Alaia Domain

Making Development Easier with AlgoDEA IntelliJ Plugin

AlgoDEA IntelliJ plugin provides end to end development life-cycle on Algorand blockchain using IntelliJ IDE. Using this plugin, developers can create and test both stateless and stateful smart contracts directly from their IntelliJ IDE. Some of the other key features supported by this plugin are editor support for TEAL & PyTeal files, ASA management, Atomic Transfers, Test account management. The goal of this plugin is to increase developer productivity by simplifying various interactions with Algorand blockchain. Due to simple consistent development workflow in the IDE, developers can iterate faster during development stage.