# Tools
# Interaction tools
# MetaMask
You can set your MetaMask (opens new window) to interact through your Aurora nodes deployed with Chainstack.
Open your MetaMask and click the network selector.
In the network selector, click Custom RPC.
In the New RPC URL field, enter the endpoint. See View node access and credentials.
Example:
- Key-protected
- Password-protected
https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d
In the Chain ID field, enter the ID of the network:
- Mainnet:
1313161554
- Testnet:
1313161555
- Mainnet:
Click Save.
See also View node access and credentials.
# Development tools
# Truffle
Configure Truffle Suite (opens new window) to deploy contracts to your Aurora nodes.
Install Truffle Suite (opens new window), HD Wallet-enabled Web3 provider (opens new window), and create a project.
Create a new environment in
truffle-config.js
, add your mnemonic phrase generated by a wallet (opens new window) and the node endpoint:
- Key-protected
- Password-protected
const HDWalletProvider = require("@truffle/hdwallet-provider");
const mnemonic = 'pattern enroll upgrade ...';
...
module.exports = {
networks: {
chainstack: {
provider: () => new HDWalletProvider(mnemonic, "https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d"),
network_id: "*"
},
}
}
};
# Hardhat
Configure Hardhat (opens new window) to deploy contracts and interact through your Aurora nodes.
Install Hardhat (opens new window) and create a project.
Create a new environment in
hardhat.config.js
:
require("@nomiclabs/hardhat-waffle");
...
module.exports = {
solidity: "0.7.3",
networks: {
chainstack: {
url: "ENDPOINT",
accounts: ["PRIVATE_KEY"]
},
}
};
where
- ENDPOINT — your node HTTPS or WSS endpoint.
- PRIVATE_KEY — the private key of the account that you use to deploy the contract.
See also View node access and credentials.
Example:
- Key-protected
- Password-protected
require("@nomiclabs/hardhat-waffle");
...
module.exports = {
solidity: "0.7.3",
networks: {
chainstack: {
url: "https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d",
accounts: ["ee5dda7d38d194783d32adcfc961401108b8fdde27e8fee115553959d434e68b"]
},
}
};
- Run
npx hardhat run scripts/deploy.js --network chainstack
and Hardhat will deploy using Chainstack.
# web3.js
Build DApps using web3.js (opens new window) and Aurora nodes deployed with Chainstack.
# HTTP
- Install web3.js (opens new window).
- Use the
HttpProvider
object to connect to your node HTTPS endpoint.
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('ENDPOINT'));
where
- ENDPOINT — your node HTTPS endpoint.
Example to get the latest block number:
- Key-protected
- Password-protected
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d'));
web3.eth.getBlockNumber().then(console.log);
# WebSocket
- Use the
WebsocketProvider
object to connect to your node WSS endpoint.
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.WebsocketProvider('ENDPOINT'));
where
- ENDPOINT — your node WSS endpoint.
Example to get the latest block number:
- Key-protected
- Password-protected
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.WebsocketProvider('wss://ws-nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d'));
web3.eth.getBlockNumber().then(console.log);
# web3.py
Build DApps using web3.py (opens new window) and Aurora nodes deployed with Chainstack.
- Install web3.py (opens new window).
- Connect over HTTP or WebSocket. See also EVM node connection: HTTP vs WebSocket.
# HTTP
Use the HTTPProvider
to connect to your node HTTPS endpoint.
- Key-protected
- Password-protected
from web3 import Web3
web3 = Web3(Web3.HTTPProvider('ENDPOINT'))
where
- ENDPOINT — your node HTTPS endpoint.
- HOSTNAME — your node HTTPS endpoint hostname.
- USERNAME — your node access username.
- PASSWORD — your node access password.
Example to get the latest block number:
- Key-protected
- Password-protected
from web3 import Web3
web3 = Web3(Web3.HTTPProvider('https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d'))
print(web3.eth.blockNumber)
# WebSocket
Use the WebsocketProvider
object to connect to your node WSS endpoint.
- Key-protected
- Password-protected
from web3 import Web3
web3 = Web3(Web3.WebsocketProvider('ENDPOINT'))
where
- ENDPOINT — your node WSS endpoint.
- HOSTNAME — your node WSS endpoint hostname.
- USERNAME — your node access username.
- PASSWORD — your node access password.
Example to get the latest block number:
- Key-protected
- Password-protected
from web3 import Web3
web3 = Web3(Web3.WebsocketProvider('wss://ws-nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d'))
print(web3.eth.blockNumber)
TIP
See also WebSocket connection to an EVM node.
# web3.php
Build DApps using web3.php (opens new window) and Aurora nodes deployed with Chainstack.
- Install web3.php (opens new window).
- Connect over HTTP:
<?php
require_once "vendor/autoload.php";
use Web3\Web3;
use Web3\Providers\HttpProvider;
use Web3\RequestManagers\HttpRequestManager;
$web3 = new Web3(new HttpProvider(new HttpRequestManager("ENDPOINT", 5)));
?>
where ENDPOINT is your node HTTPS endpoint.
- Use JSON-RPC methods (opens new window) to interact with the node.
Example to get the latest block number:
- Key-protected
- Password-protected
<?php
require_once "vendor/autoload.php";
use Web3\Web3;
use Web3\Providers\HttpProvider;
use Web3\RequestManagers\HttpRequestManager;
$web3 = new Web3(new HttpProvider(new HttpRequestManager("https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d", 5)));
$eth = $web3->eth;
$eth->blockNumber(function ($err, $data) {
print "$data \n";
});
?>
# ethers.js
Build DApps using ethers.js (opens new window) and Aurora nodes deployed with Chainstack.
- Install ethers.js (opens new window).
- Connect over HTTP or WebSocket.
# HTTP
Use the JsonRpcProvider
object to connect to your node HTTPS endpoint.
- Key-protected
- Password-protected
const { ethers } = require("ethers");
var urlInfo = {
url: 'ENDPOINT'
};
var provider = new ethers.providers.JsonRpcProvider(urlInfo, NETWORK_ID);
where
- ENDPOINT — your node HTTPS endpoint.
- USERNAME — your node access username.
- PASSWORD — your node access password.
- NETWORK_ID — Aurora network ID:
- Mainnet:
1313161554
- Testnet:
1313161555
- Mainnet:
Example to get the latest block number on mainnet:
- Key-protected
- Password-protected
const { ethers } = require("ethers");
var urlInfo = {
url: 'https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d'
};
var provider = new ethers.providers.JsonRpcProvider(urlInfo, 1313161554);
provider.getBlockNumber().then(console.log);
# WebSocket
Use the WebSocketProvider
object to connect to your node WSS endpoint.
const { ethers } = require("ethers");
const provider = new ethers.providers.WebSocketProvider('ENDPOINT', NETWORK_ID);
where
- ENDPOINT — your node WSS endpoint.
- NETWORK_ID — Aurora network ID:
- Mainnet:
1313161554
- Testnet:
1313161555
- Mainnet:
Example to get the latest block number on mainnet:
- Key-protected
- Password-protected
const { ethers } = require("ethers");
const provider = new ethers.providers.WebSocketProvider('wss://ws-nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d', 1313161554);
provider.getBlockNumber().then(console.log);
# Brownie
- Install Brownie (opens new window).
- Use the
brownie networks add
command with the node endpoint:
brownie networks add Aurora ID name="NETWORK_NAME" host=KEY_ENDPOINT chainid=NETWORK_ID
where
- ID — any name that you will use as the network tag to run a deployment. For example,
chainstack-mainnet
. - NETWORK_NAME — any name that you want to identify the network by in the list of networks. For example, Mainnet (Chainstack).
- ENDPOINT — your node HTTPS or WSS endpoint.
- NETWORK_ID — Aurora network ID:
- Mainnet:
1313161554
- Testnet:
1313161555
- Mainnet:
Example to add an Aurorua mainnet node to the list of Brownie networks:
- Key-protected
- Password-protected
brownie networks add Aurora aurora-mainnet name="Mainnet (Chainstack)" host=https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d chainid=1313161554
Example to run the deployment script:
brownie run deploy.py --network aurora-mainnet
# Foundry
- Install Foundry (opens new window).
- Use
--rpc-url
to run the operation through your Chainstack node.
# Forge
Use forge (opens new window) to develop, test, and deploy your smart contracts.
To deploy a contract:
forge create CONTRACT_NAME --contracts CONTRACT_PATH --private-key PRIVATE_KEY --rpc-url ENDPOINT
where
- CONTRACT_NAME — name of the contract in the Solidity source code.
- CONTRACT_PATH — path to your smart contract.
- PRIVATE_KEY — the private key to your funded account that you will use to deploy the contract.
- ENDPOINT — your node HTTPS endpoint.
Example to deploy the simple storage (opens new window) contract:
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- Password-protected
forge create SimpleStorage --contracts /root/foundry/contracts/simplestorage.sol --private-key 9c4b7f4ad48f977dbcdb2323249fd738cc9ff283a7514f3350d344e22c5b923d --rpc-url https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d
# Cast
Use cast (opens new window) to interact with the network and the deployed contracts.
To get the latest block number:
cast block-number --rpc-url ENDPOINT
where ENDPOINT is your node HTTPS endpoint.
Example:
- Key-protected
- Password-protected
cast block-number --rpc-url https://nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d