Metamask CEO: ERC20 tokens Moving to an intellectual contract for functions calls
As a creator who creates individual chips and integrates them with intellectual contracts, you may face situations when you need to transfer ERC20 tokens from the user’s wallet to the contract address. This guide refers to the Metamask, a popular device to interact with Ethereum decentralized programs (DAPPS).
What is the «metamask»?
Metamk is a browser extension that allows users to interact with Dapps Ethereum, and you don’t have to download and install the entire wallet. Provides a safe and friendly interface to move devices, including ERC20 tokens.
Settled metamascus
Start using Metamask:
- Install a MetamK browser extension.
2.
- Create an account on the Metamk website.
ERC20 tokens transfer from wallet to intellectual contract
Here’s a step by step ERC20 tokens from your purse to an intellectual contract:
Using a Metamask extension
- Start a Metamask extension and sign in to your account.
- Connect your wallet to the Metamask by clicking «Sign in» in the upper right corner of the screen.
- Select the mark you want to pass (in this case the ERC20 access key).
- Click the «Move the token» button.
- Select the title of the contract to which the intellectual contract was concluded from the Wallet section.
- Enter the amount of chips you want to move.
Using a Metamask browser extension
1
- Click «Add tocen» and select the sign you want to pass.
- Choose a contract title to create an intellectual contract.
- Enter the amount of chips you want to move.
Functions calls in intellectual contracts
When communicating with an intellectual contract, the use of functions calls is necessary to avoid functions directly from the ERC20 badge wallet. Instead, call the contract using the interface or transfer the tokens to protect it and under the contract.
Here’s an example of how to transfer ERC20 tokens from the user’s wallet to a function call agreement:
`Solidarity
Pragma solidity ^0.7.0;
Payment of the Contract -InvoSSPLIT {
// Initialize the price of the product
Uint production = 10 ether;
// Set the token transmission and storage functions
Function ADDTOKEN () Public Payment {
// Transfer to the tokens to the contract address using a function call
Transferedokontrart (name (EZ), 1 ether);
}
Function 'TransfeTocontract' (address recipient, UIT) public {
// Protect the chips in the contract repository
Storagestore (1 ether, 100 ether);
// Calculate the amount of token and add to the balance
Uint tokensount = amount * 10 ether;
Balantransfer (recipient, toxamount);
}
}
Tips and proven exercises
- Always use feature calls when communicating with intellectual contracts to avoid direct calls from the ERC20 chips.
- Make sure the contract surface is intended for safe interaction and follows the best token transfers.
- To ensure accurate accounting of chips, keep the contract storage and balance.
As you execute the manager, you must be able to hand over the ERC20 tokens to Metamk under the intellectual feature call agreement. Remember to continuously update the latest trends in DAPT development and proven practice for safe and effective chips transfer.