Guide to Interacting with Smart Contracts Using the Ethereum Blockchain Explorer

This article will introduce how to interact directly with smart contracts via the Ethereum blockchain explorer Etherscan without relying on any decentralized applications (DApps). This method is not only secure but also allows users to better understand the operational mechanisms of smart contracts.

Preparation Work

Before starting, please make sure you have:

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

Operation Steps

1. Ensure that the network connection is normal.

First, start your network proxy tool. When you can successfully access Google search, it indicates that the network connection is ready.

2. Locate Target Contract

Open the Etherscan blockchain explorer and search for the smart contracts address you want to interact with. This tutorial takes the NEST 3.0 version of the QP Token storage contract as an example to demonstrate how to extract QP Tokens.

3. Connect Web3 Wallet

On the contract page, click "Contract" and then "Write Contract" in sequence, and then select "Connect to Web3". A wallet connection request will pop up, choose and authorize your MetaMask wallet.

4. Find the target method

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

5. Interact with smart contracts

After finding the "takeOut" method, you need to fill in two parameters:

• The first parameter is the amount of QP Token you wish to withdraw. Note that you need to enter the full 18 decimal places here. For example, if you want to withdraw 100 Tokens, you should enter: 100000000000000000000.
• The second parameter is the contract address of the Token you want to extract. For example, the contract address of NEST Token is 0x04abeda201850ac0124161f037efd70c74ddc74c.

After filling out, click the "Write" button to initiate the transaction. Then click "View your transaction" to check the transaction status and wait for the transaction to be confirmed.

Conclusion

With this method, we can interact directly with Ethereum smart contracts without using any third-party DApps or importing wallets into unfamiliar software. This not only increases the security of operations but also gives users a more intuitive understanding of how smart contracts work. I hope this tutorial can help you better understand and use blockchain technology.