Algorand

<h1> Algorand </h1>

<h2>Table of Contents</h2>

- [Introduction](#introduction)
- [Prerequisites](#prerequisites)
- [Algorand Structure](#algorand-structure)
- [Run Default Node](#run-default-node)
- [Run Relay Node](#run-relay-node)
- [Run Indexer Node](#run-indexer-node)
- [Select Capacity](#select-capacity)

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## Introduction

[Algorand](https://www.algorand.com/) builds technology that accelerates the convergence between decentralized and traditional finance by enabling the simple creation of next-generation financial products, protocols, and exchange of value.

## Prerequisites

- Make sure you have a [wallet](wallet_connector.md)
- From the sidebar click on **Applications**
- Click on **Algorand**

## Algorand Structure

An Algorand node can be either a `Default`, `Relay` or `Indexer` node.
  
- Default:
  - This is a non-relay node.
  - It can run on Devnet, Testnet, Betanet and Mainnet.
- Relay:
  - It can run only on Testnet and Mainnet.
- Indexer:
  - It is a default node but with Archival Mode enabled which will make you able to query the data of the blockchain.

## Run Default Node

You can select any network you want and for the node type select Default. 

If you have more than one SSH keys set, you can click on `Manage SSH keys` to select which one to use for this deployment.

![defaultdep](./img/solutions_algorand.png)

After the deployment is done, SSH into the node and run `goal node status`.

Here you see your node runs on mainnet.

![defaulttest](./img/algorand_defaulttest.png)

## Run Relay Node

Relay nodes are where other nodes connect. Therefore, a relay node must be able to support a large number of connections and handle the processing load associated with all the data flowing to and from these connections. Thus, relay nodes require significantly more power than non-relay nodes. Relay nodes are always configured in archival mode.

The relay node must be publicaly accessable, so it must have a public ip.

![relaydep](./img/algorand_relaydep.png)

Once the deployment is done, SSH into the node and run `goal node status` to see the status of the node. You can also check if the right port is listening (:4161 for testnet, and :4160 for mainnet).

![relaytest](./img/algorand_relaytest.png)

The next step accourding to the [docs](https://developer.algorand.org/docs/run-a-node/setup/types/#relay-node) is to register your `ip:port` on Algorand Public SRV.

## Run Indexer Node

The primary purpose of this Indexer is to provide a REST API interface of API calls to support searching the Algorand Blockchain. The Indexer REST APIs retrieve the blockchain data from a PostgreSQL compatible database that must be populated. This database is populated using the same indexer instance or a separate instance of the indexer which must connect to the algod process of a running Algorand node to read block data. This node must also be an Archival node to make searching the entire blockchain possible.

![indexernode](./img/algorand_indexernode.png)

Once it's done, you can access the indexer API at port `8980` and here are the [endpoint](https://developer.algorand.org/docs/rest-apis/indexer/) you can access.

## Select Capacity

The default scenario capacity is computed based on the node (network/type) accourding to this [reference](https://howbigisalgorand.com/).
But you can still change this to higher values by selecting the option `Set Custom Capacity`.