Interacting with Smart Contracts in WordPress: A Guide
As a developer, you are probably new to deploying smart contracts on the blockchain. However, once your contract is up and running, interacting with it from within your application can become a major problem. In this article, we’ll look at some of the best tools and ways to interact with a deployed smart contract from a WordPress website.
1. Blockchain API
Blockchain platforms such as Ethereum, Binance Smart Chain, and Polkadot offer APIs that allow developers to interact with their blockchain networks from external applications. These APIs typically require authentication and permission tokens to access your account data.
To use the API in WordPress, you can:
- Install a plugin such as
WP-Blockchain or
Blockchain API (free), which provides an API interface for various blockchain platforms.
- Use the
curl' command line tool from your operating system's terminal to send HTTP requests to the blockchain API endpoint.
For example:
curl -X POST \
\
-H 'Content-Type: application/json' \
-d '{"data": "your_data"}'
2. Smart Contract Interface Libraries
Some smart contract frameworks, such as OpenZeppelin and Solidity, provide libraries that allow developers to interact with their contracts from external applications.
WordPress has plugins such as
Solidity-Wrapper (free) that allow you to interact with deployed contracts using the Solidity language.
To use this plugin:
- Install and activate the plugin.
- Create a new Solidity contract and deploy it to the test network.
- Use the wp-blocks
orwp-soldierWordPress shortcode to interact with the deployed contract:
$block_name = 'YourContractName';
$contract_address = '0xyour_contract_address';
$soldier_args = array(
'contract' => $contract_address,
'arguments' => array(array('data', "your_data")),
);
?>
3. Web3.js and JavaScript
For more complex use cases, you can use web3.js to interact with the deployed contract using JavaScript.
WordPress has plugins such as
WP-Web3-js (free) that provide an interface for interacting with smart contracts from WordPress.
To use this plugin:
- Install and activate the plugin.
- Create a new Solidity contract and deploy it to the test network.
- Use web3.js to interact with the deployed contract:
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('
const contractAddress = '0xyour_contract_address';
const instance = new web3.eth.Contract(contractAddress, 'YourContractName');
instance.methods.yourFunction().call()
.then((result) => console.log(result))
.catch((error) => console.error(error));
4. GraphQL
GraphQL is an API query language that allows you to define queries and mutations in a single query.
WordPress has plugins such as
WP-GraphQL
(free) that allow you to interact with smart contracts using GraphQL.
To use this plugin:
- Install and activate the plugin.
- Define your contract schema using GraphQL syntax:
“graphql
type Contract {
data: String!