How to interact directly with smart contracts through the Ethereum blockchain explorer

This article will introduce a method of interacting directly with smart contracts using the Ethereum blockchain explorer Etherscan, without relying on any decentralized applications (DApp). This method is both secure and convenient, suitable for users who are not very familiar with DApps.

Preparation Work

Before you begin, please make sure you have:

1. Installed a reliable network acceleration tool
2. Installed the MetaMask wallet extension in the browser

Operating Steps

1. Ensure the network connection is normal.

First, enable your network acceleration tool. When you can normally access the Google search engine, it indicates that the network connection is ready.

2. Find the target smart contracts

Open the Etherscan blockchain explorer, search for and enter the smart contracts address page you want to interact with. This tutorial uses the NEST 3.0 version of the QP Token deposit contract as an example to demonstrate how to retrieve QP Tokens.

3. Connect Web3 Wallet

On the contract page:

• Click the "smart contracts" tab
• Select "Write Contract"
• Click the "Connect to Web3" button
• Select and connect your MetaMask wallet

4. Target Function Positioning

In the smart contracts interaction interface, scroll down to find the function you need to call. In this example, we will use the "takeOut" function to retrieve the QP Token.

5. Execute contract interaction

Fill in the parameters required for the function:

• First parameter: Input the amount of QP Token to be withdrawn (Note: needs to add 18 zeros) For example: Withdraw 100 Tokens, input: 100000000000000000000 Withdraw 10000 Tokens, input: 10000000000000000000000

• Second parameter: Enter the token contract address of the QP Token to be withdrawn.

  • NEST Token: 0x04abeda201850ac0124161f037efd70c74ddc74c
  • NYFI: 0x075190c6130ea0a3a7e40802f1d77f4ea8f38fe2
  • NHBTC: 0x1f832091faf289ed4f50fe7418cfbd2611225d46

After filling out, click the "Write" button to initiate the transaction. You can then click "View your transaction" to check the transaction progress and wait for the transaction to be confirmed.

Conclusion

By this method, we can interact directly with smart contracts through Etherscan without the need to use any third-party DApp or import wallets into unfamiliar software. This not only enhances the security of operations but also provides users with a more direct and transparent blockchain interaction experience.