How to develop dApp on Avalanche?

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Avalanche was launched in September 2020 with remarkable features and exceptional transaction speed, one of the recent additions to the blockchain ecosystem. It is an open-source protocol using a proof-of-stake consensus mechanism and enables the creation of decentralized applications and other blockchain services. Avalanche has its native token called AVAX. Known as the "blockchain of blockchains," it is a hybrid of three blockchains, each of which tailors to specific use cases:



  • Exchange (X ) Chain - Facilitates asset development, management and transactions.

  • Platform (P) Chain- Enables validator coordination and management of subnets.

  • Contract (C) Chain - An Ethereum Virtual Machine instance that enables smart contract development.

As the Contract chain facilitates the creation of smart contracts necessary for dApp development, we have to understand the Avalanche Contract chain briefly.

Avalanche Contract (C) Chain

The C-chain is the default Avalanche smart contract blockchain, replicating the Ethereum Virtual Machine that helps create Ethereum-compatible smart contracts. As claimed by Avalanche, C-chain offers better throughput, higher speed, lower gas fees and speedy transaction confirmation times owing to its Proof-of-Stake consensus mechanism based on the Snowman consensus protocol.

How to develop a dApp on Avalanche C-chain?

Through this guide, you can create a simple dApp that permits you to send a message to a blockchain address while also sending AVAX.

Prerequisites

  • Go, AvalancheGo - To download and run an Avalanche node on the local machine.

  • Solidity, Hardhat - To generate a smart contract and deploy it to the local and test networks.

  • React, Next.js, Etheres.js, Metamask - To develop a frontend to communicate with smart contracts.

  • Vercel - To host the frontend.

Note that the codes are for macOS, which may differ slightly for Windows.

1. Run an Avalanche node on the local machine

To design, test and deploy the smart contract to the Avalanche C-chain, you must run a copy of the Avalanche network on your local machine. You can always develop directly on the Avalanche Fuji testnet; however, it is recommended that you also operate a local instance.

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