POST
/
afb8312f3710a5bc469f4c87cad3a2e4
curl --request POST \
  --url https://nd-995-911-243.p2pify.com/afb8312f3710a5bc469f4c87cad3a2e4 \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "zks_estimateGasL1ToL2",
  "params": [
    {
      "from": "0x7AeD074cA56F5050D5A2E512eCc5bf7103937d76",
      "to": "0x6B7f71BB1f5B74fB0Ff82cf4EA20A5F90d43E509",
      "data": "0x"
    }
  ]
}'
{
  "jsonrpc": "2.0",
  "id": 2,
  "result": {}
}

The zks_estimateGasL1ToL2 API method estimates the gas required to execute a transaction from Layer 1 (Ethereum) to Layer 2 (zkSync). This estimation is crucial for users and applications that optimize their transactions by accurately forecasting the gas needed for bridging assets or executing operations from L1 to L2 in the zkSync network.

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​
Parameters

The transaction request object for which the L1 to L2 gas estimation is made. It encapsulates details about the transaction, including:

  • from — a string representing the Ethereum address from which the transaction is initiated.
  • to — a string indicating the target address on zkSync Layer 2. This could be a wallet address or a smart contract within the zkSync ecosystem.
  • data — (Optional) a string of the hashed method signature and encoded parameters intended for smart contract interactions. This aligns with the Ethereum Contract ABI, facilitating seamless operations across layers.

​
Response

The response to the zks_estimateGasL1ToL2 request provides the estimated gas requirement for the transaction, enabling precise budgeting for gas expenses:

  • result — the estimated gas required for the transaction, represented as a hex string.

​
Use case

A practical application of zks_estimateGasL1ToL2 is for a DApp that bridges assets from Ethereum to zkSync, offering users lower transaction costs and faster processing. By estimating the required gas before initiating the bridge, the DApp ensures users have sufficient funds for the transaction, enhancing transparency and efficiency in cross-layer operations.

Body

application/json
​
jsonrpc
string
default:2.0
required
Example:

"2.0"

​
id
integer
default:2
required
Example:

2

​
method
string
default:zks_estimateGasL1ToL2
required
Example:

"zks_estimateGasL1ToL2"

​
params
object[]
required

Response

200 - application/json
Successful response
​
jsonrpc
string
default:2.0
required
Example:

"2.0"

​
id
integer
default:2
required
​
result
object
required