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Metamask: Metamask Swap contract logic
Metamasian Exchange Agreement Logic: Step by step Guide
While studying the metamascus substitute contracts, it is essential to understand the complex logic behind them. In this article, a typical metamasical substitute agreement is interrupted by the process of replacing the ether (eTH) DAI (DAI).
Overview of Metamaska Metamas Replacement
agreement
The Metamascan exchange contract is an adapted contract for Ethereum Blockchain, which allows the crossing to remove the chain between the different cryptocurrency. These contracts were built at the top of the Openzeppelin standard, ensuring safety and interoperability in various chains.
Step 1: Receive ETH -A from your wallet metamask
Suppose you place your wallet with metamascus and connect to a metamascus platform. He also configured his wallet to receive Ether (ETH) using the Metamask’s “ETH” function.
`Javascript
Const metamascus = waiting for window.ethereum.connect ();
Metamask.eth.sendtransation ({from: '0xyourwaltaddress', to: '0xcontractdradressress', value: 1});
In this step, the wallet receives the amount of ETH (1) and sends it to the contract address (for example: 0xcontractddress").
Step 2: Maintenance of the contract
To communicate with the contract, you must download ABI (application binary interface). This is done byWeb3esth.abi.
Javascript
Const abi = waiting metamask.esth.abi.read ('0xcontractabi');
It is assumed that the ABI of the contract is properly set in the metamics. The Abi variable now contains byte -contract.
Step 3: Contract Call
With the ABI Agreement, you can call on your deputy function to perform surgery. In our example, suppose we want to replace ETH with DAI.
`Javascript
Const tx = waiting for metamask.esth.sendtransection ({from {: '0xyourwalletaddress', to: '0xdaicontraddrass', value: 1, data: abi.read ('swapethtodai')});
In this step, the wallet is sent to the metamascus transaction with the contract using Sendtransection. The “TX” variable now contains hash transactions.
Step 4: Contract Call (Continue)
To perform the replacement surgery, you must call the contract “Swapethtodai” contract.
`Javascript
Const Result = Wait for Metamask.eth.geteventoglog ({title: '0xcontractdrass', theme: tx.hash, event: 'swapethtodai'});
Here we use the “Getuventog” method to download logs on transaction events. The “result” variable now contains an object containing replacement data.
Step 5: Contract Call (Final)
Finally, you can call the contract function to confirm that the exchange was successful.
`Javascript
const txhash = result.Swapamount;
metamask.eth.sendtransation ({from: '0xyourwaltaddress', to: '0xdaicontradddress', value: 1});
In this step, we send a new transaction using Sendtransection. The “Txhash” variable now contains a affirmative hash replacement operation.
Conclusion
Exchange of ETH with DAI to Metamasian exchange contracts contains several steps:
۱.
- Abi’s peers
۳.
- To execute the replacement
- To confirm the result of the replacement
Following these steps, you can successfully replace one of the ethers for DAI with a metamascus exchange.
More tips and considerations
- Always keep your wallet on a metamascus platform when interaction with customized contracts.
- Make sure that ABI is updated in the contract and is correct.
- Take care of possible fraud or phishing attacks that target metamas users.
- Find the official metamic documentation and the guidelines for openethole about the use of the exchange contract.
I hope this article will help you understand the procedure behind the Metamascus replacement agreement!