Create your subscription
To start using dVRF, you need to create a subscription that will manage your random number requests and handle gas payments for callbacks. You can create a subscription in two ways: using the new web interface or through on-chain functions.
The easiest way to create your dVRF subscription is through subscription manager UI at supra.com/data/dvrf.
Prerequisites
MetaMask wallet installed and configured.
Sufficient funds in your wallet for gas fees.
Connected to the appropriate network (see Available Networks)
Steps
Connect Your Wallet
Navigate to supra.com/data/dvrf
Click "Connect Wallet"
Approve the connection request
Access Subscription Management
Click on "My Subscription" in the interface
If you don't have a subscription yet, you'll see an option to create one
Create New Subscription
Fill in the required details.
Max Gas Price: Maximum gas price you're willing to pay for callback transactions.
Max Gas Limit: Maximum gas limit allocated for callback transactions.
Click "Create Subscription"
Review and Confirm
Review your Gas configuration settings.
Confirm the transaction in your wallet.
Wait for transaction confirmation.
Verification
Once confirmed, your subscription will be active.
You can view your subscription details in the "My Subscription" section.
Your wallet address is now registered as the subscription manager.
For developers who prefer programmatic subscription creation, you can interact directly with the smart contracts.
// Interface for dVRF 3.0 Deposit Contract
interface IDeposit {
function addClientToWhitelist(
uint128 maxGasPrice,
uint128 maxGasLimit
) external payable;
}Verification
Check subscription status: Use web interface or getSubscriptionByClient() function
After creating your subscription, verify it's working correctly.
Still not comfortable with Minimum Balance, Max Gas Limit, Max Gas price or Max Gas Fee? In the next section we talk about it.
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