Check that you have a -e transaction in Mempool using Infura API
As a developer, it is essential to check that the pending transaction has been incorporated into the Ethereum network mecolla. In this article we will explore two approaches: API “eth_gettransectionByhash” API is used to implement the solution based on JavaScript in the web3.js.
Approach 1: Using the eth_gettransactionbybyhash API
The API eth_gettransectionByhash allows you to restore a transaction by hatching. However, it should be noted that this notice point will only return the details of the transaction if it exists in Mempool or applies to admission to Mempool.
Here are the steps:
- Prepare the transaction creator Ethereum title.
- Send a request to “eth_gettransectionByhash” with the built -in address and the purpose of the transaction target (
0x ...`). Replace "Targethash" with the real hash you want to check.
Javascript
Const web3 = needed ('web3');
Const infuraurl = '
Const service provider = new web3.providers.httpprovider (Infuraurl);
// Prepare a transaction creator Ethereum address
Const Mineraddress = '0x ...';
// Build a shredding of your interested transaction
Const Targethash = '0x ...';
Web3.eth.gettransactionByhash (supplier, {de: Mineraddress}, {
Data:0x $ {Targethash},
})
.Then ((transaction) => {{
console.log (transaction);
if (transaction.isinmempool ()) {
Console.log ("there is a transaction in Mempool");
} Other {
Console.log ("transaction is not in mempool");
}
})
.Catch ((error) => {{{
Console.Error (error);
});
'
Approach 2: Using JS Web3.js and API Infura
For a simpler approach, you can use the "Eth.gettransection" method for web3.js. This method takes an optional hash parameter.
This is how to do it:
Javascript
Const web3 = needed ('web3');
Const infuraurl = '
Const service provider = new web3.providers.httpprovider (Infuraurl);
// Prepare a transaction creator Ethereum address
Const Mineraddress = '0x ...';
// Build a shredding of your interested transaction
Const Targethash = '0x ...';
Web3.eth.gettransection ({{
But: Mineraddress,
Gasprice: Web3.utils.towei ('20 ',' Gwei ') ,,
})
.Then ((transaction) => {{
console.log (transaction);
if (transaction.isinmempool ()) {
Console.log ("there is a transaction in Mempool");
} Other {
Console.log ("transaction is not in mempool");
}
})
.Catch ((error) => {{{
Console.Error (error);
});
` ‘
Conclusion
The two approaches allow you to check that the pending transaction is integrated into the mempool of the Ethereum network. However, the use of eth_gettransectionbyhash provides additional information about the transaction and its insertion status. The JS Web3.js method is a simpler solution.
In both cases, make sure the Infura API instance is properly configured with the project ID.
Note : This implementation assumes that you have already configured an Ethereum node or connected to a cloud supplier like infura. Otherwise, follow the configuration instructions supplied with each platform.
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