Tutorial on Interacting Directly with Ethereum Smart Contracts via Blockchain Explorer

This article will introduce how to directly interact with Ethereum smart contracts using only the Etherscan blockchain explorer without relying on any DAPP. This method allows users to operate more safely in unfamiliar environments.

Preparation Work

Before starting, please ensure that you have:

1. Install and configure the network acceleration tool
2. Install the MetaMask wallet extension

Operating Steps

1. Confirm network connection

First, start the network acceleration tool and conduct a test in Google search to ensure normal access.

2. Find the target smart contract

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

3. Connect Web3 wallet

On the contract page, click in sequence:

• "Contracts" tab
• "Write Contract" button
• "Connect to Web3" button

Then select the MetaMask wallet plugin.

4. Target positioning method

Find the method you want to call in the contract method list. In this example, we need to find the "takeOut" method.

5. Enter parameters and initiate the transaction

For example, to withdraw 100 NEST Tokens:

1. Fill in the first input box: 100000000000000000000 (100 followed by 18 zeros 0)
2. Fill in the second input box with the NEST Token contract address: 0x04abeda201850ac0124161f037efd70c74ddc74c

To withdraw other tokens, simply replace the corresponding contract address. For example:

• NYFI: 0x075190c6130ea0a3a7e40802f1d77f4ea8f38fe2
• NHBTC: 0x1f832091faf289ed4f50fe7418cfbd2611225d46

After filling out, click the "Write" button to initiate the transaction. Then you can click "View your transaction" to check the transaction progress and wait for successful packaging.

Conclusion

By this method, we can interact directly with smart contracts on Etherscan without using third-party DAPPs or importing wallets into unfamiliar software, greatly enhancing the security and convenience of the operation. This is a great option for users who want to interact directly with contracts but are concerned about security issues.