🔥 Understanding estimateUserOperationGas

• estimateUserOperationGas takes a partial UserOperation object and returns detailed gas estimates to be used in continued UserOperation construction. It takes:
  • Partial user operation object:
    • sender - string.
    • nonce - string.
    • initCode - string.
    • callData - string.
    • signature - string.signature can be a dummy string, such as 0xfffffffffffffffffffffffffffffff0000000000000000000000000000000007aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1c.
    • entrypointAddress - string.

Query example

{
  "method": "eth_estimateUserOperationGas",
  "params": [
    // partial user operation
    {
      "sender": "0x8fb859e944561678be40cdd2db16551396c0b074",
      "nonce": "0x0152",
      "initCode": "0x",
      "callData": "0x9e5d4c49000000000000000000000000329a7f8b91ce7479035cb1b5d62ab41845830ce8000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000",
      "signature": "0x73c3ac716c487ca34bb858247b5ccf1dc354fbaabdd089af3b2ac8e78ba85a4959a2d76250325bd67c11771c31fccda87c33ceec17cc0de912690521bb95ffcb1b"
    },
    "0x5ff137d4b0fdcd49dca30c7cf57e578a026d2789"
  ],
  "id": 1695717515,
  "jsonrpc": "2.0",
  "chainId": 80001
}