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Blockchain Development Programming Tutorials, Guides & Best Practices

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Tutorial

ETH vs WETH: Understanding the Difference and Their Roles in Ethereum

  • ETH: Used for gas fees, transactions, and interacting directly with the Ethereum network.
  • WETH: Primarily used within decentralized applications and protocols that require ERC-20 tokens, such as decentralized exchanges (e.g., Uniswap) or lending platforms.
  • ETH can be wrapped into WETH and vice versa. There is no change in value—1 ETH always equals 1 WETH.

Oct 24, 2024
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Tutorial
javascript nodejs

Tracking Newly Created Tokens on Ethereum

  • Etherscan API: We use the tokentx action from Etherscan's API to fetch token transfer events. The API returns a list of token transactions, including newly created tokens.
  • Filter for New Tokens: We filter transactions where the from address is 0x0000000000000000000000000000000000000000, indicating a token creation event. This address is used as a placeholder for the "zero address" in token contracts.
  • Display Information: We log the name, symbol, and contract address of each newly created token.

Step 4: Monitor for New Tokens

Aug 09, 2024
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