Blockchain Development Programming Tutorials, Guides & Best Practices

• Replace 'YOUR_ETHERSCAN_API_KEY' with your Etherscan API key.
• Replace '0xYourEthereumAddress' with the address you want to query.
• Replace '0xYourTokenContractAddress' with the ERC-20 token's contract address (e.g., USDT or DAI token contract).
• This script queries the ERC-20 token balance for a specific Ethereum address.

   https://api.etherscan.io/api?module=account&action=txlist&address=0xYourEthereumAddress&startblock=0&endblock=99999999&sort=asc&apikey=YOUR_API_KEY

First, you need to install Ethers.js, a library for interacting with the Ethereum blockchain.

Run the following command in your project folder to install it:

The "0x000000000000000000000000000000000000dead" address is used as a burn address because it is widely recognized as a destination for token destruction. Since tokens sent to this address are permanently locked and cannot be retrieved, it’s an ideal address for conducting token burns. It is a well-established convention across many blockchain projects.

For example, in token burn events, project developers often send tokens to this address to signal to the community that those tokens are now out of circulation. This is usually followed by a public announcement, detailing the number of tokens burned and the reasons behind the burn.

You’ve now created and deployed your own ERC-20 token using OpenZeppelin. This token adheres to the ERC-20 standard, making it compatible with wallets, exchanges, and other Ethereum-based applications. OpenZeppelin simplifies the process, ensuring that your token is secure and follows best practices. From here, you can further customize your token, add additional features, or integrate it into decentralized applications.

ERC-20 tokens are the foundation of many decentralized finance (DeFi) applications, and by mastering this process, you’re well on your way to becoming a proficient blockchain developer.

Gas is the measure of computational effort required to execute operations on the Ethereum network. Each operation, from simple arithmetic to complex smart contract execution, consumes a specific amount of gas. Users must pay for gas in Ether, which compensates miners for the resources required to process and validate transactions.

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