Example of a Cardano Smart Contract

2 min readFeb 13

What is a Cardano Smart Contract?

Cardano Smart Contracts

A smart contract on the Cardano blockchain is a self-executing contract that contains the terms of an agreement between parties. The contract automatically executes when certain conditions are met, without the need for intermediaries.

Here is an example of a simple smart contract on the Cardano blockchain:

pragma solidity ^0.8.0;

contract SimpleSmartContract {
uint256 public value;

function setValue(uint256 newValue) public {
value = newValue;

function getValue() public view returns (uint256) {
return value;

The above smart contract has two functions: setValue and getValue. The setValue function takes a uint256 parameter and sets it as the value of the value variable. The getValue function returns the value of the value variable.

This is just a simple example, but smart contracts on the Cardano blockchain can be much more complex and can handle more complex business logic and rules.

How to Use a Smart Contract?

  1. Writing the contract code: The first step is to write the contract code using a programming language supported by the Cardano blockchain, such as Plutus.
  2. Deploying the contract: Once the contract code is written, it needs to be deployed to the Cardano blockchain. This involves uploading the code to the network and creating a contract instance.
  3. Interacting with the contract: After the contract has been deployed, it can be interacted with by sending transactions to it. For example, in the case of the simple smart contract example I gave you earlier, you can send a transaction to the setValue function to set a new value, or you can call the getValue function to retrieve the current value.
  4. Monitoring the contract: Once the contract is deployed and interacting with, it is important to monitor it to ensure it is functioning as intended. This can be done using a blockchain explorer or other tools.

Keep in mind that deploying and using smart contracts on the Cardano blockchain requires a good understanding of the platform and its technical details, as well as a solid understanding of programming and blockchain technology in general. If you are new to these topics, it is recommended to seek out resources and guidance from experienced developers and the Cardano community.

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