hardhat-vechain
A package extending the Hardhat environment with a vechain
field.
The field contains a Hardhat EthereumProvider
enabling requests via Connex.
Usage
- Modify
hardhat.config.js
to include require("@vechain/hardhat-vechain")
- Configure
networks
to include a vechain
configuration
Note: A solo Thor instance should be running for the below configurations to work
Sample hardhat.config.js
const {
VECHAIN_URL_SOLO
} = require("@vechain/hardhat-vechain");
module.exports = {
solidity: {
version: "0.8.17",
},
networks: {
vechain: {
url: VECHAIN_URL_SOLO
},
}
};
Sample hardhat.config.js
with fee delegation
Fee delegation can be configured by providing optional delegate
config which has required url
and optional signer
field. Url needs to point to delegation a valid
delegation service, for example https://sponsor-testnet.vechain.energy/by/${projectId}
.
const {
VECHAIN_URL_SOLO
} = require("@vechain/hardhat-vechain");
require("@vechain/hardhat-web3");
module.exports = {
solidity: {
version: "0.8.17",
},
networks: {
vechain: {
url: VECHAIN_URL_SOLO,
delegate: {
url: "${feeDelegationServiceUrl}",
signer: "${optionalSigner}"
}
},
}
};
Multi network support sample hardhat.config.js
Multiple network can also be configured to simplify testing and deployments. Networks which are targeting VechainThor
nodes should have vechain
as part of the network name (vechain, vechain_testnet, vechainNode are all valid). Network
names without this requirement won't be preprocessed by the plugin and it is not expected to function properly with Thor
network. Sample configuration:
const {
VECHAIN_URL_SOLO
} = require("@vechain/hardhat-vechain");
require("@vechain/hardhat-web3");
module.exports = {
solidity: {
version: "0.8.17",
},
networks: {
vechain_solo: {
url: VECHAIN_URL_SOLO,
delegate: {
url: "${feeDelegationServiceUrl}",
signer: "${optionalSigner}"
}
},
vechain_mainnet: {
url: "https://mainnet.veblocks.net",
},
}
};
Testing
- Access the provider using the globally available
vechain
describe("vechain", function() {
it("should be able to send requests", async function () {
const accounts = await vechain.request({ method: "eth_accounts" });
assert.equals(accounts[0], "0xf077b491b355e64048ce21e3a6fc4751eeea77fa");
});
});