Processing basic transaction scripts with Ethereum
In this article, we will explore a simple example of how to process a basic transaction (TX) script using Ethereum. We also show you how to retrieve the recipient’s address from the raw transaction.
Introduction
Ethereum is a decentralized platform that allows developers to build smart contracts and decentralized applications (Dapps). Transaction scripts are used to perform a special logic within the blockchain, such as validating transactions or execution of data. In this example, we focus on a simple TX script that checks the sender’s identity and query the addressee’s address.
Basic TX script example
Here’s an example of a basic TX script in strength (programming language used for Ethereum development):
`Solidity
Pragma solidity ^0.8.0;
contract Basictxscript {
Function Verifyseender (Address Sender) Public View Returns (BOOL) {
// Check the sender's signature is the same as our expected public key
is required (msg.sender == keccak256 ("execution_publy_key"), "Invalid sender");
Return is true;
}
Function Getrecipientaddress (Address Recipient) Public View Returns (Address) {
// Check the recipient's address is valid by checking an empty or incorrect hash
demand (bytes (recipient). Length> 0 && bytes (recipient) .Hash == Keccak256 ("Expected_hash"), "Invalid Recipient");
recurrent recipient;
}
}
Example Use the case
To process the TX script, we need to define a contract that implement the “Basictxscript” interface. We also create two features: “Verifysender” and “GetRecipientaddress” called by the contract when you receive a transaction.
`Solidity
Pragma solidity ^0.8.0;
contract transaction processor {
Basictxscript Basictxscript;
the title of the public recipient;
Function setrecipient (title _recipient) public {
recipient = _recipient;
}
Function Verifyseender (Address Sender) Public View Returns (BOOL) {
RETURN BASICTXSCRript.verifysender (sender);
}
Function Getrecipientaddress () Public View Returns (title) {
RETURN BASICTXSCRIPT.GETRACIPUENTADDRESS (recipient);
}
}
Processing the transaction
Now that we have a contract that executes the “BasictxScript” interface, create a new transaction and call the functions to check the sender and search the addressee’s address.
`Solidity
Pragma solidity ^0.8.0;
a contractual example {
Transaction processor processor;
uint256 public txhash;
Function Createtransection () public {
// Set the recipient's address as a variable
uint256 _recipient = 0x123456789012345678901234567890ABCDE;
// Create a new transaction and set it to HASH Random
processor.setrecipient (_recipient);
txhash = block.timeppp * 1000000; // Set the transaction time stamp to high value
}
Function Verifyseender (Address Sender) Public View Returns (BOOL) {
Return processor.verifysender (sender);
}
}
Run this example
To run the example, we need to install the “TransactionProcessor” contract and create a new transaction using the “Example” contract. We also update Createtransection () to set the recipient address.
“ Solidity
Pragma solidity ^0.8.0;
a contractual example {
Transaction processor processor;
uint256 public txhash;
mapping (title => string) Public SenderaddreStoppubey;
Function Createtransection () public {
// Set the recipient’s address as a variable
uint256 _recipient = 0x123456789012345678901234567890ABCDE;
// Create a new transaction and set it to HASH Random
processor.