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Erc-20 Tokens Development Tutorials, Guides & Insights

Unlock 3+ expert-curated erc-20 tokens tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your erc-20 tokens skills on DeveloperBreeze.

How to Query ERC-20 Token Balances and Transactions Using Ethers.js and Etherscan API

Tutorial October 24, 2024

To follow along with this tutorial, you’ll need:

  • Node.js installed on your machine.
  • A basic understanding of JavaScript.
  • An Etherscan API key (explained below).
  • Familiarity with Ethers.js for blockchain interaction.

Sending Transactions and Interacting with Smart Contracts Using Infura and Ethers.js

Tutorial October 24, 2024

node sendTransaction.js

If everything is set up correctly, the script will output the transaction hash after sending, and then confirm once the transaction is mined.

Understanding and Using the Etherscan API to Query Blockchain Data

Tutorial October 24, 2024

You can also query transaction details directly in your browser by visiting:

https://api.etherscan.io/api?module=proxy&action=eth_getTransactionByHash&txhash=0xYourTransactionHash&apikey=YOUR_ETHERSCAN_API_KEY