Vana SDK - v2.2.2
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    Interface GasEstimate

    Gas estimate information for transaction cost prediction.

    Provides detailed gas pricing estimates to help users understand transaction costs before execution. Supports both legacy (gasPrice) and EIP-1559 (maxFeePerGas) pricing models. The estimatedCost is calculated based on current network conditions and may vary by the time of actual execution.

    // Get gas estimate before transaction
    const estimate: GasEstimate = await vana.permissions.estimateGas({
      grantee: '0x742d35Cc6558Fd4D9e9E0E888F0462ef6919Bd36',
      dataId: 123
    });

    // Convert to human-readable format
    const costInEth = Number(estimate.estimatedCost) / 1e18;
    console.log(`Estimated cost: ${costInEth.toFixed(6)} ETH`);

    // Check if user has sufficient balance
    const balance = await vana.protocol.getBalance(userAddress);
    if (balance < estimate.estimatedCost) {
      throw new Error(`Insufficient balance. Need ${costInEth} ETH`);
    }

    // Use estimate for transaction with buffer
    await vana.permissions.grant(params, {
      gasLimit: estimate.gasLimit * 110n / 100n, // 10% buffer
      maxFeePerGas: estimate.maxFeePerGas,
      maxPriorityFeePerGas: estimate.maxPriorityFeePerGas
    });
    interface GasEstimate {
        gasLimit: bigint;
        gasPrice: bigint;
        maxFeePerGas?: bigint;
        maxPriorityFeePerGas?: bigint;
        estimatedCost: bigint;
    }
    Index

    Properties

    gasLimit gasPrice maxFeePerGas? maxPriorityFeePerGas? estimatedCost

    Properties

    gasLimit: bigint

    Gas limit

    gasPrice: bigint

    Gas price

    maxFeePerGas?: bigint

    Max fee per gas

    maxPriorityFeePerGas?: bigint

    Max priority fee per gas

    estimatedCost: bigint

    Estimated cost in wei

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