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Parameters
jsonrpc
— the JSON-RPC protocol version (always “2.0”)method
— the method name (always “eth_estimateGas”)params
— array containing method parameterstransaction
— transaction object containing to, from, gas, gasPrice, value, and data fields
id
— request identifier (number or string)
Response
jsonrpc
— the JSON-RPC protocol version (“2.0”)id
— the request identifier that matches the requestresult
— the estimated gas amount as hex string
Use case
Thejsonrpc eth_estimateGas
method is used for:
- Calculating gas requirements before sending transactions through Web3 interfaces
- Building transaction fee estimation features in wallets and dApps
- Optimizing gas usage and preventing failed transactions due to insufficient gas
- Implementing dynamic gas pricing and transaction cost calculations
Body
application/json