KlaytnGreeter

KlaytnGreeter is a simple contract that returns a greeting message. Greeting message is set when the contract is deployed.

Writing KlaytnGreeter

pragma solidity 0.5.6;

contract Mortal {

/* Define variable owner of the type address */

address payable owner;

/* This function is executed at initialization and sets the owner of the contract */

constructor () public { owner = msg.sender; }

/* Function to recover the funds on the contract */

function kill() public { if (msg.sender == owner) selfdestruct(owner); }

}

contract KlaytnGreeter is Mortal {

/* Define variable greeting of the type string */

string greeting;

/* This runs once when the contract is created */

constructor (string memory _greeting) public {

greeting = _greeting;

}

/* Main function */

function greet() public view returns (string memory) {

return greeting;

}

}

Deploying KlaytnGreeter using Remix Online IDE

• Please visit Klaytn Plugin for Remix and create a KlaytnGreeter contract. The complete source code was given in the above.
• Prepare your account which will be used to deploy the contract.
  • If you do not have an account yet, create one at https://baobab.wallet.klaytn.foundation/create or https://toolkit.klaytn.foundation/account/accountKeyLegacy.
  • Get some test KLAY from the faucet - https://baobab.wallet.klaytn.foundation/faucet
• Deploy the contract with initial parameter, a greeting message.
• After deploying, you can invoke greet from the IDE.

References

For the details of contract deployment and the Remix Online IDE usage guideline, please refer to the following documents.

• Remix Online IDE
• Deploy Guide