Metamask Swap Contract Logic: Step by Step
Since Metamask is studying swap contracts, it is essential to understand the complex logic behind them. Dai (Dai) with a typical metamask swap contract.
Overview of Metamask Swap Contracts
The metamask swap contract is a custom -built contract on the Ethereum blockchain that allows the between chains to be replaced between the various cryptocurrencies. These contracts
Step 1: Receive Eth from Metamask’s Wallet
Suppose you adjust the metamask wallet and connect to the metamask platform. You have also configured your wallet to receive ether (ETH) with the “ETH” feature provided by metamask.
`JavaScript
Consta metamask = waiting for window.ethereum.connect ();
metamask.eth.sendtransection ({from: '0xyourwaltaddress', to: '0xcontraddaddress', value: 1});
(1) and sends it to a contract address (for example: 0xcontraddaddress").
Step 2: Contract -return
(Application of Binary Interface). This is done byweb3.eth.abi.
JavaScript
Const abi = waiting for metamask.eth.abi.read ('0xcontractabi');
It is assumed that the abi of the contract has been correctly adjusted in the setting of metamask. The abi variable now contains the bytes of the Contract.
Step 3: Call contract
The contract can call its functions with abi’s hand to execute the swap operation. In our example, let’s replace eth with dai.
`JavaScript
Const tx = Waiting for metamask.eth.sendtransection ({from: '0xyourwalletaddadd', to: '0xdaContractAddaddress', value: 1, data: abi.read ('swapethtodai')});
The “Sendtransection”. The “tx” variable now contains the transaction hash.
Step 4: Call Contract (Continue)
Function on the contract.
`JavaScript
Const result = wait for metamask.eth.geteventlog ({title: "0xcontraddaddress", topic: tx.hash, event: 'swapethtodai'});
Here we use the “geteventlog” method to retrieve the event logs related to the transaction. The “Result” variable now contains an object that contains replacement data.
Step 5: Call contract (Final)
Finally, you can call the contract features to confirm that the exchange was successful.
`JavaScript
Const txhash = result.swapamount;
metamask.eth.sendtransection ({from: '0xyourwalletaddaddd', to: '0xdaContractAddaddress', value: 1});
Method “Sendtransection”. The “txhash” variable now contains the confirmatory hash of the swap operation.
Conclusion
Replacing ETH to Dai with a Metamask Swap Contract Includes Several Steps:
1.
- Returning the Abi of the Treaty
3.
- To perform the Replacement Operation
- To confirm the result of the replacement
By following these steps, you can succle replace one ether dai with a metamask swap contract.
More Tips and Considerations
- Always keep your metamask wallet for the metamask platform when it interacts with custom -built contracts.
- Make sure the abi of the contract is up to date and correct.
- Be careful about potential fraud or phishing attacks targeting metamask users.
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Metamask Swap Contracts!
