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Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with Python

Example Python to read and write into the note field.

write

note

transactions

v2 api

Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with Go

Example Go to read and write into the notefield

write

read

note

transactions

v1 api

Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with Go

Example using Go to read and write into the note field.

write

read

note

transactions

go

v2 api

Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with JavaScript

Example JavaScript to read and write into the note field

note

javascript

indexer v2

v2 api

Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with Java

Example Java to read and write into the note field.

write

read

note

transactions

v2 api

Tutorial

Beginner · 30 minutes

Read and Write to the Transaction Note Field with Java

Example Java to read and write into the notefield

write

read

note

transactions

v1 api

Solution

FDA Recalls Application

This application stores FDA recall data on Algorand’s blockchain and then uses Algorand's indexer to locate the FDA recall data.

transactions

note

sandbox

python

APIs

indexer

Algorand SDK

Article

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.

Solution

ASA Recurring Withdrawal DApp

Build an ASA's recurring withdrawal dApp combining Algorand Standard Assets, Algorand Smart Contracts and Atomic Transfers.

goal

atomic transfer

asc1

teal

stateful smart contracts

algorand standard assets

pyteal

dapp

Solution

“Alexa, ask Algorand for the latest round on MainNet?”

Sample code for how to transform a few basic interactions with the Algorand blockchain into a voice-interactive experience using Alexa.

python

vui

voice

voice assistants

alexa skills kit

alexa

Solution

Decentralized Two-Factor Authentication With Algorand Standard Assets

Sample code for creating a basic two-factor authentication system with Algorand Standard Assets.

security

javascript

assets

testnet

authentication

two-factor

2fa

Solution

Creating a Point-of-Sale Application with the Algorand Blockchain

We show how to use Algorand’s blockchain to create an alternative payment solution for processing retail transactions. The solution demonstrates a point-of-sale application and a signing wallet.

transactions

java

point of sale

transaction gateway

Solution

Using the Algorand Blockchain to Track COVID-19

Sample code for scraping and processing IReport-Covid survey data from the Algorand Blockchain to better understand how COVID-19 affects people in real time.

data science

python

covid-19

Solution

Arduino on Algorand Blockchain

Sample code to connect any Arduino to the Algorand Blockchain.

javascript

Arduino

IoT

C

Hardware

Solution

Build Algorand iOS, Android and UWP apps using C# .NET SDK and Xamarin

This solution shows how to build an Algorand application for iOS, Android and Universal Windows Platform (UWP), with one code base, using Xamarin Forms and C#.

transactions

asa

atomic transfer

c#

csharp

asc1

uwp

.net

iOS

Xamarin

Android

Solution

Exporting Algorand Transactions for Tax Reporting

Export tool for exporting Algorand on-chain transactions including rewards for crypto-tax sites to consume.

transactions

indexer

PureStake

go

v2 api

csv

Solution

Example Crowdfunding Stateful Smart Contract Application

This solution explains one way to build a crowdfunding application on the Algorand Blockchain.

smart contracts

stateful smart contracts

crowdfunding

Solution

Algorand Wallet Manager - Manage Your Own Wallets with a Graphical Interface

This solution introduces you to the Algorand Wallet Manager and describes common techniques in building a graphical interface on Algorand using Python.

python

transactions

your own node

gui

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