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Learn how to code an essential function for token distribution
Because the crypto markets are raging right now, I decided to dust off my keyboard and write some Solidity code. Token airdrops remain a powerful tool for projects to engage with their community, so I created this short tutorial to explain what airdrops are and how to include an airdrop function in your smart contract!
Airdrops are method for distributing tokens to a list of crypto addresses. This method of distribution can serve multiple purposes, including incentivizing participation, rewarding early supporters, or driving decentralized governance.
Using a smart contract or a function, we can automate the process of sending tokens to eligible addresses. This helps ensure security and transparency during promotions, like an initial coin offering.
Understanding how to create and deploy airdrop functions in smart contracts is not only essential for developers, but also for anyone buying into a token. When a contract has been verified, it’s code should be available to read on the chain’s block scanner. This tutorial will empower you to validate the airdrop code is fair before you buy into a project.
I’m going to assume you already know some Ethereum development basics and can work your way around Remix, the online Solidity development environment. If you’re brand new to crypto token development, I recommend checking out OpenZeppelin for to look at basic contract templates.
To follow along in this tutorial, use my ERC20 token template found on my Github. It utilizes OpenZeppelin to implement best practices.
Setting up the contract
After loading the token template, replace the filler labels with actual values of the contract name, token name, and token symbol. Since this is an airdrop token, I’m going to name the contract Airdrop, and give it a similar name and symbol:
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