Ethereum Smart Contracts Interaction Tutorial: Direct Operation Method Without Relying on DAPPs

This article will introduce you to how to interact directly with Ethereum smart contracts through Etherscan, without relying on any DAPP applications. This method is not only safe and reliable, but also allows you to better understand the operational mechanism of smart contracts.

Preparation Work

Before we begin, please make sure you have the following tools ready:

1. Reliable network access tools
2. MetaMask Browser Extension

Operating Steps

1. Ensure the network connection is normal.

First, please ensure that your network connection is stable. When you can successfully access Google Search, it indicates that the network connection is ready.

2. Access the target contract address

Open the Etherscan block explorer and find the smart contract address you want to interact with. This tutorial will take 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 "Contract", then "Write Contract", and then select "Connect to Web3". In the pop-up window, select and connect your MetaMask wallet.

4. Target Positioning Method

Scroll down on the contract page to find the method you need to call. In this case, we will use the "takeOut" method to retrieve the QP Token.

5. Execute contract interaction

After finding the target method, you need to fill in the following information:

• The number of QP Tokens withdrawn: Please pay attention to the unit conversion when entering. For example, to withdraw 100 Tokens, you should enter: 100000000000000000000 (add 18 zeros after 100).
• Token contract address: Enter the corresponding contract address based on the type of Token you want to withdraw.

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

Summary

By this method, you can interact directly with smart contracts on Etherscan without using any third-party DAPPs or importing your wallet into unfamiliar software. This not only enhances the security of the operation but also gives you a more intuitive understanding of how smart contracts work.

Please remember to carefully verify the contract address and input parameters before performing any actions to ensure the accuracy and security of transactions. As you become more familiar with this method, you will be able to manage your digital assets and interact with various smart contracts more freely.