Skip to main content

EVM Arguments

You can use the arguments method with EVM chains to get arguments and values of transactions, trades and calls.

The data returned from arguments depends on the contract your are querying.

Example 1​

The following query uses the EVM arguments API to retrieve information about the arguments that were passed to the Staked event of the smart contract with address 0x7fac371c6222caf705b21489a0a5600a2a773a35

{
  ethereum(network: ethereum) {
    arguments(
      options: {desc: ["block.height"], limit: 10}
      smartContractAddress: {in: "0x7fac371c6222caf705b21489a0a5600a2a773a35"}
      smartContractEvent: {is: "Staked"}
    ) {
      block {
        height
      }
      from: any(of: argument_value, argument: {is: "staker"})
      onBehalfOf: any(of: argument_value, argument: {is: "caller"})
      amount: any(of: argument_value, argument: {is: "amount"})
    }
  }
}

The argument field can be used to specify the name of the argument that you want to retrieve. The name of the argument is not fixed, it depends on the event that was emitted. For example, the Staked event has three arguments: staker, caller, and amount.

Example 2​

  ethereum {
    arguments(
      smartContractAddress: {is: "0x29469395eaf6f95920e59f858042f0e28d98a20b"}
      smartContractMethod: {is: "borrow"}
      options: {desc: "block.height", limit: 6}
    ) {
      block {
        height
      }
      transaction {
        hash
      }
      totalAmount: any(of: argument_value, argument: {is: "offer.totalAmount"})
      minAmount: any(of: argument_value, argument: {is: "offer.minAmount"})
      maxAmount: any(of: argument_value, argument: {is: "offer.maxAmount"})
      loanAmount: any(of: argument_value, argument: {is: "loanAmount"})
      auctionDuration: any(
        of: argument_value
        argument: {is: "offer.auctionDuration"}
      )
      expirationTime: any(of: argument_value, argument: {is: "offer.expirationTime"})
    }
  }
}

Here the arguments are completely different.

In this example, the borrow method has six arguments: offer.totalAmount, offer.minAmount, offer.maxAmount, loanAmount, offer.auctionDuration, and offer.expirationTime. The argument field is used to specify the name of the argument that you want to retrieve.

In this case, the totalAmount, minAmount, maxAmount, loanAmount, auctionDuration, and expirationTime arguments are retrieved